T6683] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 217.664614][ T6683] [ 217.664635][ T6683] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 218.072256][ T6683] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 218.360325][ T6687] loop1: detected capacity change from 0 to 32768 [ 218.369218][ T6687] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 218.376806][ T6687] CPU: 1 UID: 0 PID: 6687 Comm: syz.1.179 Not tainted syzkaller #0 PREEMPT(full) [ 218.376835][ T6687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 218.376852][ T6687] Call Trace: [ 218.376862][ T6687] [ 218.376872][ T6687] dump_stack_lvl+0x189/0x250 [ 218.376913][ T6687] ? __pfx_dump_stack_lvl+0x10/0x10 [ 218.376942][ T6687] ? __pfx__printk+0x10/0x10 [ 218.376980][ T6687] ? kernfs_root+0x1c/0x230 [ 218.377011][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377044][ T6687] ? kernfs_path_from_node+0x250/0x290 [ 218.377069][ T6687] ? kernfs_path_from_node+0x2f/0x290 [ 218.377098][ T6687] sysfs_create_dir_ns+0x259/0x280 [ 218.377126][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377155][ T6687] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 218.377181][ T6687] ? do_raw_spin_unlock+0x122/0x240 [ 218.377218][ T6687] kobject_add_internal+0x59f/0xb40 [ 218.377246][ T6687] kobject_init_and_add+0x125/0x190 [ 218.377289][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377320][ T6687] ? __pfx_kobject_init_and_add+0x10/0x10 [ 218.377358][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377385][ T6687] ? __raw_spin_lock_init+0x45/0x100 [ 218.377416][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377444][ T6687] ? __init_swait_queue_head+0xa9/0x150 [ 218.377478][ T6687] gfs2_sys_fs_add+0x234/0x450 [ 218.377505][ T6687] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 218.377541][ T6687] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 218.377586][ T6687] gfs2_fill_super+0x13c0/0x20d0 [ 218.377632][ T6687] ? __pfx_gfs2_fill_super+0x10/0x10 [ 218.377663][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377694][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377722][ T6687] ? sb_set_blocksize+0x104/0x180 [ 218.377763][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377791][ T6687] ? setup_bdev_super+0x4c1/0x5b0 [ 218.377832][ T6687] get_tree_bdev_flags+0x40e/0x4d0 [ 218.377866][ T6687] ? __pfx_gfs2_fill_super+0x10/0x10 [ 218.377899][ T6687] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 218.377935][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.377965][ T6687] gfs2_get_tree+0x51/0x1e0 [ 218.377995][ T6687] vfs_get_tree+0x92/0x2b0 [ 218.378028][ T6687] do_new_mount+0x2a2/0x9e0 [ 218.378072][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378100][ T6687] ? ns_capable+0x8a/0xf0 [ 218.378123][ T6687] ? __pfx_do_new_mount+0x10/0x10 [ 218.378154][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378179][ T6687] ? path_mount+0x61c/0xfe0 [ 218.378210][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378242][ T6687] __se_sys_mount+0x317/0x410 [ 218.378279][ T6687] ? __pfx___se_sys_mount+0x10/0x10 [ 218.378312][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378340][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378368][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378395][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378422][ T6687] ? __x64_sys_mount+0x20/0xc0 [ 218.378458][ T6687] do_syscall_64+0xfa/0x3b0 [ 218.378499][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378526][ T6687] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 218.378555][ T6687] ? srso_alias_return_thunk+0x5/0xfbef5 [ 218.378582][ T6687] ? exc_page_fault+0x9f/0xf0 [ 218.378620][ T6687] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 218.378643][ T6687] RIP: 0033:0x7fe49699038a [ 218.378664][ T6687] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 218.378684][ T6687] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 218.378709][ T6687] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 218.378727][ T6687] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 218.378744][ T6687] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 218.378761][ T6687] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 218.378777][ T6687] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 218.378804][ T6687] [ 218.378826][ T6687] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 218.786162][ T6687] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 219.073508][ T6691] loop1: detected capacity change from 0 to 32768 [ 219.082424][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 219.090192][ T6691] CPU: 0 UID: 0 PID: 6691 Comm: syz.1.180 Not tainted syzkaller #0 PREEMPT(full) [ 219.090223][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 219.090239][ T6691] Call Trace: [ 219.090248][ T6691] [ 219.090259][ T6691] dump_stack_lvl+0x189/0x250 [ 219.090299][ T6691] ? __pfx_dump_stack_lvl+0x10/0x10 [ 219.090329][ T6691] ? __pfx__printk+0x10/0x10 [ 219.090366][ T6691] ? kernfs_root+0x1c/0x230 [ 219.090398][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.090430][ T6691] ? kernfs_path_from_node+0x250/0x290 [ 219.090456][ T6691] ? kernfs_path_from_node+0x2f/0x290 [ 219.090484][ T6691] sysfs_create_dir_ns+0x259/0x280 [ 219.090511][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.090540][ T6691] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 219.090572][ T6691] ? do_raw_spin_unlock+0x122/0x240 [ 219.090609][ T6691] kobject_add_internal+0x59f/0xb40 [ 219.090638][ T6691] kobject_init_and_add+0x125/0x190 [ 219.090680][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.090713][ T6691] ? __pfx_kobject_init_and_add+0x10/0x10 [ 219.090750][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.090778][ T6691] ? __raw_spin_lock_init+0x45/0x100 [ 219.090809][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.090837][ T6691] ? __init_swait_queue_head+0xa9/0x150 [ 219.090870][ T6691] gfs2_sys_fs_add+0x234/0x450 [ 219.090896][ T6691] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 219.090924][ T6691] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 219.090966][ T6691] gfs2_fill_super+0x13c0/0x20d0 [ 219.091011][ T6691] ? __pfx_gfs2_fill_super+0x10/0x10 [ 219.091040][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091069][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091095][ T6691] ? sb_set_blocksize+0x104/0x180 [ 219.091137][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091163][ T6691] ? setup_bdev_super+0x4c1/0x5b0 [ 219.091203][ T6691] get_tree_bdev_flags+0x40e/0x4d0 [ 219.091236][ T6691] ? __pfx_gfs2_fill_super+0x10/0x10 [ 219.091270][ T6691] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 219.091305][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091338][ T6691] gfs2_get_tree+0x51/0x1e0 [ 219.091371][ T6691] vfs_get_tree+0x92/0x2b0 [ 219.091406][ T6691] do_new_mount+0x2a2/0x9e0 [ 219.091448][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091475][ T6691] ? ns_capable+0x8a/0xf0 [ 219.091500][ T6691] ? __pfx_do_new_mount+0x10/0x10 [ 219.091535][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091569][ T6691] ? path_mount+0x61c/0xfe0 [ 219.091602][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091636][ T6691] __se_sys_mount+0x317/0x410 [ 219.091674][ T6691] ? __pfx___se_sys_mount+0x10/0x10 [ 219.091708][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091736][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091766][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091794][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091820][ T6691] ? __x64_sys_mount+0x20/0xc0 [ 219.091858][ T6691] do_syscall_64+0xfa/0x3b0 [ 219.091897][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091925][ T6691] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.091949][ T6691] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.091975][ T6691] ? exc_page_fault+0x9f/0xf0 [ 219.092013][ T6691] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.092037][ T6691] RIP: 0033:0x7fe49699038a [ 219.092058][ T6691] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 219.092080][ T6691] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 219.092105][ T6691] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 219.092124][ T6691] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 219.092142][ T6691] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 219.092160][ T6691] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 219.092177][ T6691] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 219.092204][ T6691] [ 219.092226][ T6691] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 219.498844][ T6691] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 219.790808][ T6695] loop1: detected capacity change from 0 to 32768 [ 219.806326][ T6695] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 219.813835][ T6695] CPU: 1 UID: 0 PID: 6695 Comm: syz.1.181 Not tainted syzkaller #0 PREEMPT(full) [ 219.813866][ T6695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 219.813882][ T6695] Call Trace: [ 219.813892][ T6695] [ 219.813903][ T6695] dump_stack_lvl+0x189/0x250 [ 219.813944][ T6695] ? __pfx_dump_stack_lvl+0x10/0x10 [ 219.813974][ T6695] ? __pfx__printk+0x10/0x10 [ 219.814011][ T6695] ? kernfs_root+0x1c/0x230 [ 219.814043][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814076][ T6695] ? kernfs_path_from_node+0x250/0x290 [ 219.814103][ T6695] ? kernfs_path_from_node+0x2f/0x290 [ 219.814132][ T6695] sysfs_create_dir_ns+0x259/0x280 [ 219.814159][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814188][ T6695] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 219.814215][ T6695] ? do_raw_spin_unlock+0x122/0x240 [ 219.814251][ T6695] kobject_add_internal+0x59f/0xb40 [ 219.814280][ T6695] kobject_init_and_add+0x125/0x190 [ 219.814324][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814356][ T6695] ? __pfx_kobject_init_and_add+0x10/0x10 [ 219.814394][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814422][ T6695] ? __raw_spin_lock_init+0x45/0x100 [ 219.814452][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814481][ T6695] ? __init_swait_queue_head+0xa9/0x150 [ 219.814515][ T6695] gfs2_sys_fs_add+0x234/0x450 [ 219.814551][ T6695] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 219.814581][ T6695] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 219.814626][ T6695] gfs2_fill_super+0x13c0/0x20d0 [ 219.814672][ T6695] ? __pfx_gfs2_fill_super+0x10/0x10 [ 219.814704][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814735][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814764][ T6695] ? sb_set_blocksize+0x104/0x180 [ 219.814805][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.814833][ T6695] ? setup_bdev_super+0x4c1/0x5b0 [ 219.814873][ T6695] get_tree_bdev_flags+0x40e/0x4d0 [ 219.814907][ T6695] ? __pfx_gfs2_fill_super+0x10/0x10 [ 219.814941][ T6695] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 219.814977][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815010][ T6695] gfs2_get_tree+0x51/0x1e0 [ 219.815043][ T6695] vfs_get_tree+0x92/0x2b0 [ 219.815079][ T6695] do_new_mount+0x2a2/0x9e0 [ 219.815122][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815151][ T6695] ? ns_capable+0x8a/0xf0 [ 219.815176][ T6695] ? __pfx_do_new_mount+0x10/0x10 [ 219.815211][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815239][ T6695] ? path_mount+0x61c/0xfe0 [ 219.815272][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815306][ T6695] __se_sys_mount+0x317/0x410 [ 219.815347][ T6695] ? __pfx___se_sys_mount+0x10/0x10 [ 219.815385][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815414][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815445][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815473][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815501][ T6695] ? __x64_sys_mount+0x20/0xc0 [ 219.815544][ T6695] do_syscall_64+0xfa/0x3b0 [ 219.815586][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815616][ T6695] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.815640][ T6695] ? srso_alias_return_thunk+0x5/0xfbef5 [ 219.815668][ T6695] ? exc_page_fault+0x9f/0xf0 [ 219.815708][ T6695] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 219.815732][ T6695] RIP: 0033:0x7fe49699038a [ 219.815754][ T6695] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 219.815777][ T6695] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 219.815805][ T6695] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 219.815825][ T6695] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 219.815844][ T6695] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 219.815862][ T6695] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 219.815880][ T6695] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 219.815909][ T6695] [ 219.815931][ T6695] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 220.224574][ T6695] gfs2: fsid=__&+[$!: error -17 adding sysfs files 2025/08/22 13:59:02 executed programs: 167 [ 220.519993][ T6699] loop1: detected capacity change from 0 to 32768 [ 220.533454][ T6699] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 220.541284][ T6699] CPU: 1 UID: 0 PID: 6699 Comm: syz.1.182 Not tainted syzkaller #0 PREEMPT(full) [ 220.541313][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 220.541330][ T6699] Call Trace: [ 220.541339][ T6699] [ 220.541349][ T6699] dump_stack_lvl+0x189/0x250 [ 220.541389][ T6699] ? __pfx_dump_stack_lvl+0x10/0x10 [ 220.541418][ T6699] ? __pfx__printk+0x10/0x10 [ 220.541455][ T6699] ? kernfs_root+0x1c/0x230 [ 220.541486][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.541518][ T6699] ? kernfs_path_from_node+0x250/0x290 [ 220.541544][ T6699] ? kernfs_path_from_node+0x2f/0x290 [ 220.541572][ T6699] sysfs_create_dir_ns+0x259/0x280 [ 220.541598][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.541627][ T6699] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 220.541653][ T6699] ? do_raw_spin_unlock+0x122/0x240 [ 220.541688][ T6699] kobject_add_internal+0x59f/0xb40 [ 220.541716][ T6699] kobject_init_and_add+0x125/0x190 [ 220.541757][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.541788][ T6699] ? __pfx_kobject_init_and_add+0x10/0x10 [ 220.541826][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.541855][ T6699] ? __raw_spin_lock_init+0x45/0x100 [ 220.541886][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.541913][ T6699] ? __init_swait_queue_head+0xa9/0x150 [ 220.541947][ T6699] gfs2_sys_fs_add+0x234/0x450 [ 220.541975][ T6699] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 220.542003][ T6699] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 220.542048][ T6699] gfs2_fill_super+0x13c0/0x20d0 [ 220.542093][ T6699] ? __pfx_gfs2_fill_super+0x10/0x10 [ 220.542124][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542156][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542184][ T6699] ? sb_set_blocksize+0x104/0x180 [ 220.542227][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542266][ T6699] ? setup_bdev_super+0x4c1/0x5b0 [ 220.542308][ T6699] get_tree_bdev_flags+0x40e/0x4d0 [ 220.542341][ T6699] ? __pfx_gfs2_fill_super+0x10/0x10 [ 220.542374][ T6699] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 220.542410][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542442][ T6699] gfs2_get_tree+0x51/0x1e0 [ 220.542475][ T6699] vfs_get_tree+0x92/0x2b0 [ 220.542510][ T6699] do_new_mount+0x2a2/0x9e0 [ 220.542553][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542581][ T6699] ? ns_capable+0x8a/0xf0 [ 220.542606][ T6699] ? __pfx_do_new_mount+0x10/0x10 [ 220.542641][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542669][ T6699] ? path_mount+0x61c/0xfe0 [ 220.542702][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542737][ T6699] __se_sys_mount+0x317/0x410 [ 220.542777][ T6699] ? __pfx___se_sys_mount+0x10/0x10 [ 220.542813][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542842][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542872][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542900][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.542927][ T6699] ? __x64_sys_mount+0x20/0xc0 [ 220.542965][ T6699] do_syscall_64+0xfa/0x3b0 [ 220.543006][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.543037][ T6699] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 220.543061][ T6699] ? srso_alias_return_thunk+0x5/0xfbef5 [ 220.543089][ T6699] ? exc_page_fault+0x9f/0xf0 [ 220.543128][ T6699] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 220.543152][ T6699] RIP: 0033:0x7fe49699038a [ 220.543173][ T6699] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 220.543195][ T6699] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 220.543221][ T6699] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 220.543240][ T6699] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 220.543265][ T6699] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 220.543284][ T6699] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 220.543301][ T6699] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 220.543328][ T6699] [ 220.543351][ T6699] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 220.950561][ T6699] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 221.232066][ T6703] loop1: detected capacity change from 0 to 32768 [ 221.244221][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 221.252365][ T6703] CPU: 0 UID: 0 PID: 6703 Comm: syz.1.183 Not tainted syzkaller #0 PREEMPT(full) [ 221.252397][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 221.252413][ T6703] Call Trace: [ 221.252423][ T6703] [ 221.252434][ T6703] dump_stack_lvl+0x189/0x250 [ 221.252474][ T6703] ? __pfx_dump_stack_lvl+0x10/0x10 [ 221.252503][ T6703] ? __pfx__printk+0x10/0x10 [ 221.252540][ T6703] ? kernfs_root+0x1c/0x230 [ 221.252572][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.252605][ T6703] ? kernfs_path_from_node+0x250/0x290 [ 221.252631][ T6703] ? kernfs_path_from_node+0x2f/0x290 [ 221.252661][ T6703] sysfs_create_dir_ns+0x259/0x280 [ 221.252688][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.252717][ T6703] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 221.252743][ T6703] ? do_raw_spin_unlock+0x122/0x240 [ 221.252780][ T6703] kobject_add_internal+0x59f/0xb40 [ 221.252807][ T6703] kobject_init_and_add+0x125/0x190 [ 221.252851][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.252880][ T6703] ? __pfx_kobject_init_and_add+0x10/0x10 [ 221.252915][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.252940][ T6703] ? __raw_spin_lock_init+0x45/0x100 [ 221.252967][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.252992][ T6703] ? __init_swait_queue_head+0xa9/0x150 [ 221.253022][ T6703] gfs2_sys_fs_add+0x234/0x450 [ 221.253047][ T6703] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 221.253074][ T6703] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 221.253116][ T6703] gfs2_fill_super+0x13c0/0x20d0 [ 221.253161][ T6703] ? __pfx_gfs2_fill_super+0x10/0x10 [ 221.253189][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253219][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253246][ T6703] ? sb_set_blocksize+0x104/0x180 [ 221.253290][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253315][ T6703] ? setup_bdev_super+0x4c1/0x5b0 [ 221.253353][ T6703] get_tree_bdev_flags+0x40e/0x4d0 [ 221.253384][ T6703] ? __pfx_gfs2_fill_super+0x10/0x10 [ 221.253414][ T6703] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 221.253448][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253480][ T6703] gfs2_get_tree+0x51/0x1e0 [ 221.253512][ T6703] vfs_get_tree+0x92/0x2b0 [ 221.253546][ T6703] do_new_mount+0x2a2/0x9e0 [ 221.253589][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253616][ T6703] ? ns_capable+0x8a/0xf0 [ 221.253640][ T6703] ? __pfx_do_new_mount+0x10/0x10 [ 221.253673][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253700][ T6703] ? path_mount+0x61c/0xfe0 [ 221.253733][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253766][ T6703] __se_sys_mount+0x317/0x410 [ 221.253805][ T6703] ? __pfx___se_sys_mount+0x10/0x10 [ 221.253839][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253869][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253897][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.253925][ T6703] ? __x64_sys_mount+0x20/0xc0 [ 221.253961][ T6703] do_syscall_64+0xfa/0x3b0 [ 221.254004][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.254032][ T6703] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 221.254056][ T6703] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.254084][ T6703] ? exc_page_fault+0x9f/0xf0 [ 221.254122][ T6703] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 221.254146][ T6703] RIP: 0033:0x7fe49699038a [ 221.254168][ T6703] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 221.254189][ T6703] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 221.254215][ T6703] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 221.254235][ T6703] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 221.254253][ T6703] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 221.254281][ T6703] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 221.254299][ T6703] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 221.254326][ T6703] [ 221.254356][ T6703] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 221.656474][ T6703] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 221.943680][ T6707] loop1: detected capacity change from 0 to 32768 [ 221.961042][ T6707] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 221.968530][ T6707] CPU: 1 UID: 0 PID: 6707 Comm: syz.1.184 Not tainted syzkaller #0 PREEMPT(full) [ 221.968561][ T6707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 221.968578][ T6707] Call Trace: [ 221.968587][ T6707] [ 221.968598][ T6707] dump_stack_lvl+0x189/0x250 [ 221.968640][ T6707] ? __pfx_dump_stack_lvl+0x10/0x10 [ 221.968671][ T6707] ? __pfx__printk+0x10/0x10 [ 221.968707][ T6707] ? kernfs_root+0x1c/0x230 [ 221.968739][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.968771][ T6707] ? kernfs_path_from_node+0x250/0x290 [ 221.968798][ T6707] ? kernfs_path_from_node+0x2f/0x290 [ 221.968827][ T6707] sysfs_create_dir_ns+0x259/0x280 [ 221.968856][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.968886][ T6707] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 221.968912][ T6707] ? do_raw_spin_unlock+0x122/0x240 [ 221.968950][ T6707] kobject_add_internal+0x59f/0xb40 [ 221.968980][ T6707] kobject_init_and_add+0x125/0x190 [ 221.969022][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969054][ T6707] ? __pfx_kobject_init_and_add+0x10/0x10 [ 221.969093][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969121][ T6707] ? __raw_spin_lock_init+0x45/0x100 [ 221.969152][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969180][ T6707] ? __init_swait_queue_head+0xa9/0x150 [ 221.969213][ T6707] gfs2_sys_fs_add+0x234/0x450 [ 221.969241][ T6707] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 221.969270][ T6707] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 221.969317][ T6707] gfs2_fill_super+0x13c0/0x20d0 [ 221.969365][ T6707] ? __pfx_gfs2_fill_super+0x10/0x10 [ 221.969406][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969437][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969465][ T6707] ? sb_set_blocksize+0x104/0x180 [ 221.969507][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969536][ T6707] ? setup_bdev_super+0x4c1/0x5b0 [ 221.969576][ T6707] get_tree_bdev_flags+0x40e/0x4d0 [ 221.969614][ T6707] ? __pfx_gfs2_fill_super+0x10/0x10 [ 221.969646][ T6707] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 221.969680][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969712][ T6707] gfs2_get_tree+0x51/0x1e0 [ 221.969745][ T6707] vfs_get_tree+0x92/0x2b0 [ 221.969779][ T6707] do_new_mount+0x2a2/0x9e0 [ 221.969821][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969849][ T6707] ? ns_capable+0x8a/0xf0 [ 221.969874][ T6707] ? __pfx_do_new_mount+0x10/0x10 [ 221.969908][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.969936][ T6707] ? path_mount+0x61c/0xfe0 [ 221.969967][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970001][ T6707] __se_sys_mount+0x317/0x410 [ 221.970040][ T6707] ? __pfx___se_sys_mount+0x10/0x10 [ 221.970075][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970103][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970132][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970160][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970188][ T6707] ? __x64_sys_mount+0x20/0xc0 [ 221.970225][ T6707] do_syscall_64+0xfa/0x3b0 [ 221.970265][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970293][ T6707] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 221.970317][ T6707] ? srso_alias_return_thunk+0x5/0xfbef5 [ 221.970344][ T6707] ? exc_page_fault+0x9f/0xf0 [ 221.970386][ T6707] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 221.970410][ T6707] RIP: 0033:0x7fe49699038a [ 221.970431][ T6707] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 221.970452][ T6707] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 221.970478][ T6707] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 221.970497][ T6707] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 221.970515][ T6707] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 221.970533][ T6707] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 221.970550][ T6707] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 221.970578][ T6707] [ 222.362890][ T6707] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 222.378569][ T6707] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 222.675581][ T6711] loop1: detected capacity change from 0 to 32768 [ 222.690181][ T6711] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 222.700701][ T6711] CPU: 1 UID: 0 PID: 6711 Comm: syz.1.185 Not tainted syzkaller #0 PREEMPT(full) [ 222.700731][ T6711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 222.700748][ T6711] Call Trace: [ 222.700757][ T6711] [ 222.700768][ T6711] dump_stack_lvl+0x189/0x250 [ 222.700811][ T6711] ? __pfx_dump_stack_lvl+0x10/0x10 [ 222.700837][ T6711] ? __pfx__printk+0x10/0x10 [ 222.700871][ T6711] ? kernfs_root+0x1c/0x230 [ 222.700899][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.700929][ T6711] ? kernfs_path_from_node+0x250/0x290 [ 222.700952][ T6711] ? kernfs_path_from_node+0x2f/0x290 [ 222.700977][ T6711] sysfs_create_dir_ns+0x259/0x280 [ 222.701002][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701027][ T6711] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 222.701051][ T6711] ? do_raw_spin_unlock+0x122/0x240 [ 222.701084][ T6711] kobject_add_internal+0x59f/0xb40 [ 222.701109][ T6711] kobject_init_and_add+0x125/0x190 [ 222.701147][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701175][ T6711] ? __pfx_kobject_init_and_add+0x10/0x10 [ 222.701208][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701233][ T6711] ? __raw_spin_lock_init+0x45/0x100 [ 222.701259][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701283][ T6711] ? __init_swait_queue_head+0xa9/0x150 [ 222.701313][ T6711] gfs2_sys_fs_add+0x234/0x450 [ 222.701338][ T6711] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 222.701363][ T6711] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 222.701405][ T6711] gfs2_fill_super+0x13c0/0x20d0 [ 222.701446][ T6711] ? __pfx_gfs2_fill_super+0x10/0x10 [ 222.701473][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701500][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701524][ T6711] ? sb_set_blocksize+0x104/0x180 [ 222.701562][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701587][ T6711] ? setup_bdev_super+0x4c1/0x5b0 [ 222.701626][ T6711] get_tree_bdev_flags+0x40e/0x4d0 [ 222.701656][ T6711] ? __pfx_gfs2_fill_super+0x10/0x10 [ 222.701685][ T6711] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 222.701716][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701744][ T6711] gfs2_get_tree+0x51/0x1e0 [ 222.701774][ T6711] vfs_get_tree+0x92/0x2b0 [ 222.701804][ T6711] do_new_mount+0x2a2/0x9e0 [ 222.701842][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701866][ T6711] ? ns_capable+0x8a/0xf0 [ 222.701888][ T6711] ? __pfx_do_new_mount+0x10/0x10 [ 222.701919][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.701943][ T6711] ? path_mount+0x61c/0xfe0 [ 222.701972][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702002][ T6711] __se_sys_mount+0x317/0x410 [ 222.702037][ T6711] ? __pfx___se_sys_mount+0x10/0x10 [ 222.702068][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702093][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702119][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702143][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702167][ T6711] ? __x64_sys_mount+0x20/0xc0 [ 222.702200][ T6711] do_syscall_64+0xfa/0x3b0 [ 222.702238][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702263][ T6711] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 222.702284][ T6711] ? srso_alias_return_thunk+0x5/0xfbef5 [ 222.702309][ T6711] ? exc_page_fault+0x9f/0xf0 [ 222.702343][ T6711] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 222.702364][ T6711] RIP: 0033:0x7fe49699038a [ 222.702384][ T6711] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 222.702402][ T6711] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 222.702425][ T6711] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 222.702441][ T6711] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 222.702458][ T6711] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 222.702473][ T6711] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 222.702488][ T6711] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 222.702513][ T6711] [ 222.702543][ T6711] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 223.108300][ T6711] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 223.395697][ T6715] loop1: detected capacity change from 0 to 32768 [ 223.405513][ T6715] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 223.414016][ T6715] CPU: 1 UID: 0 PID: 6715 Comm: syz.1.186 Not tainted syzkaller #0 PREEMPT(full) [ 223.414045][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 223.414061][ T6715] Call Trace: [ 223.414070][ T6715] [ 223.414081][ T6715] dump_stack_lvl+0x189/0x250 [ 223.414122][ T6715] ? __pfx_dump_stack_lvl+0x10/0x10 [ 223.414150][ T6715] ? __pfx__printk+0x10/0x10 [ 223.414187][ T6715] ? kernfs_root+0x1c/0x230 [ 223.414219][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414252][ T6715] ? kernfs_path_from_node+0x250/0x290 [ 223.414289][ T6715] ? kernfs_path_from_node+0x2f/0x290 [ 223.414318][ T6715] sysfs_create_dir_ns+0x259/0x280 [ 223.414345][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414374][ T6715] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 223.414400][ T6715] ? do_raw_spin_unlock+0x122/0x240 [ 223.414436][ T6715] kobject_add_internal+0x59f/0xb40 [ 223.414465][ T6715] kobject_init_and_add+0x125/0x190 [ 223.414507][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414538][ T6715] ? __pfx_kobject_init_and_add+0x10/0x10 [ 223.414575][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414603][ T6715] ? __raw_spin_lock_init+0x45/0x100 [ 223.414632][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414660][ T6715] ? __init_swait_queue_head+0xa9/0x150 [ 223.414694][ T6715] gfs2_sys_fs_add+0x234/0x450 [ 223.414721][ T6715] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 223.414748][ T6715] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 223.414793][ T6715] gfs2_fill_super+0x13c0/0x20d0 [ 223.414838][ T6715] ? __pfx_gfs2_fill_super+0x10/0x10 [ 223.414869][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414900][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414928][ T6715] ? sb_set_blocksize+0x104/0x180 [ 223.414969][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.414997][ T6715] ? setup_bdev_super+0x4c1/0x5b0 [ 223.415036][ T6715] get_tree_bdev_flags+0x40e/0x4d0 [ 223.415067][ T6715] ? __pfx_gfs2_fill_super+0x10/0x10 [ 223.415098][ T6715] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 223.415131][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415163][ T6715] gfs2_get_tree+0x51/0x1e0 [ 223.415195][ T6715] vfs_get_tree+0x92/0x2b0 [ 223.415226][ T6715] do_new_mount+0x2a2/0x9e0 [ 223.415266][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415302][ T6715] ? ns_capable+0x8a/0xf0 [ 223.415325][ T6715] ? __pfx_do_new_mount+0x10/0x10 [ 223.415358][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415388][ T6715] ? path_mount+0x61c/0xfe0 [ 223.415421][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415454][ T6715] __se_sys_mount+0x317/0x410 [ 223.415493][ T6715] ? __pfx___se_sys_mount+0x10/0x10 [ 223.415528][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415556][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415585][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415612][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415639][ T6715] ? __x64_sys_mount+0x20/0xc0 [ 223.415677][ T6715] do_syscall_64+0xfa/0x3b0 [ 223.415715][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415739][ T6715] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 223.415760][ T6715] ? srso_alias_return_thunk+0x5/0xfbef5 [ 223.415784][ T6715] ? exc_page_fault+0x9f/0xf0 [ 223.415819][ T6715] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 223.415839][ T6715] RIP: 0033:0x7fe49699038a [ 223.415858][ T6715] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 223.415877][ T6715] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 223.415899][ T6715] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 223.415915][ T6715] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 223.415931][ T6715] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 223.415947][ T6715] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 223.415962][ T6715] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 223.415986][ T6715] [ 223.416042][ T6715] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 223.822836][ T6715] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 224.114656][ T6719] loop1: detected capacity change from 0 to 32768 [ 224.123422][ T6719] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 224.132462][ T6719] CPU: 1 UID: 0 PID: 6719 Comm: syz.1.187 Not tainted syzkaller #0 PREEMPT(full) [ 224.132491][ T6719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 224.132507][ T6719] Call Trace: [ 224.132517][ T6719] [ 224.132527][ T6719] dump_stack_lvl+0x189/0x250 [ 224.132568][ T6719] ? __pfx_dump_stack_lvl+0x10/0x10 [ 224.132597][ T6719] ? __pfx__printk+0x10/0x10 [ 224.132632][ T6719] ? kernfs_root+0x1c/0x230 [ 224.132664][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.132696][ T6719] ? kernfs_path_from_node+0x250/0x290 [ 224.132720][ T6719] ? kernfs_path_from_node+0x2f/0x290 [ 224.132749][ T6719] sysfs_create_dir_ns+0x259/0x280 [ 224.132776][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.132805][ T6719] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 224.132831][ T6719] ? do_raw_spin_unlock+0x122/0x240 [ 224.132868][ T6719] kobject_add_internal+0x59f/0xb40 [ 224.132896][ T6719] kobject_init_and_add+0x125/0x190 [ 224.132937][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.132969][ T6719] ? __pfx_kobject_init_and_add+0x10/0x10 [ 224.133006][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133034][ T6719] ? __raw_spin_lock_init+0x45/0x100 [ 224.133062][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133090][ T6719] ? __init_swait_queue_head+0xa9/0x150 [ 224.133128][ T6719] gfs2_sys_fs_add+0x234/0x450 [ 224.133155][ T6719] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 224.133184][ T6719] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 224.133228][ T6719] gfs2_fill_super+0x13c0/0x20d0 [ 224.133273][ T6719] ? __pfx_gfs2_fill_super+0x10/0x10 [ 224.133309][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133341][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133369][ T6719] ? sb_set_blocksize+0x104/0x180 [ 224.133410][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133438][ T6719] ? setup_bdev_super+0x4c1/0x5b0 [ 224.133477][ T6719] get_tree_bdev_flags+0x40e/0x4d0 [ 224.133510][ T6719] ? __pfx_gfs2_fill_super+0x10/0x10 [ 224.133542][ T6719] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 224.133577][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133609][ T6719] gfs2_get_tree+0x51/0x1e0 [ 224.133641][ T6719] vfs_get_tree+0x92/0x2b0 [ 224.133675][ T6719] do_new_mount+0x2a2/0x9e0 [ 224.133719][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133747][ T6719] ? ns_capable+0x8a/0xf0 [ 224.133771][ T6719] ? __pfx_do_new_mount+0x10/0x10 [ 224.133806][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133832][ T6719] ? path_mount+0x61c/0xfe0 [ 224.133865][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133899][ T6719] __se_sys_mount+0x317/0x410 [ 224.133937][ T6719] ? __pfx___se_sys_mount+0x10/0x10 [ 224.133969][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.133997][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.134026][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.134053][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.134078][ T6719] ? __x64_sys_mount+0x20/0xc0 [ 224.134112][ T6719] do_syscall_64+0xfa/0x3b0 [ 224.134151][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.134178][ T6719] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 224.134201][ T6719] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.134227][ T6719] ? exc_page_fault+0x9f/0xf0 [ 224.134265][ T6719] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 224.134290][ T6719] RIP: 0033:0x7fe49699038a [ 224.134318][ T6719] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 224.134340][ T6719] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 224.134365][ T6719] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 224.134382][ T6719] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 224.134400][ T6719] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 224.134418][ T6719] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 224.134435][ T6719] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 224.134462][ T6719] [ 224.134535][ T6719] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 224.540834][ T6719] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 224.838173][ T6723] loop1: detected capacity change from 0 to 32768 [ 224.863112][ T6723] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 224.870717][ T6723] CPU: 0 UID: 0 PID: 6723 Comm: syz.1.188 Not tainted syzkaller #0 PREEMPT(full) [ 224.870748][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 224.870765][ T6723] Call Trace: [ 224.870774][ T6723] [ 224.870784][ T6723] dump_stack_lvl+0x189/0x250 [ 224.870827][ T6723] ? __pfx_dump_stack_lvl+0x10/0x10 [ 224.870856][ T6723] ? __pfx__printk+0x10/0x10 [ 224.870893][ T6723] ? kernfs_root+0x1c/0x230 [ 224.870924][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.870956][ T6723] ? kernfs_path_from_node+0x250/0x290 [ 224.870982][ T6723] ? kernfs_path_from_node+0x2f/0x290 [ 224.871010][ T6723] sysfs_create_dir_ns+0x259/0x280 [ 224.871037][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871067][ T6723] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 224.871098][ T6723] ? do_raw_spin_unlock+0x122/0x240 [ 224.871134][ T6723] kobject_add_internal+0x59f/0xb40 [ 224.871163][ T6723] kobject_init_and_add+0x125/0x190 [ 224.871206][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871239][ T6723] ? __pfx_kobject_init_and_add+0x10/0x10 [ 224.871287][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871314][ T6723] ? __raw_spin_lock_init+0x45/0x100 [ 224.871346][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871374][ T6723] ? __init_swait_queue_head+0xa9/0x150 [ 224.871408][ T6723] gfs2_sys_fs_add+0x234/0x450 [ 224.871434][ T6723] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 224.871463][ T6723] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 224.871508][ T6723] gfs2_fill_super+0x13c0/0x20d0 [ 224.871554][ T6723] ? __pfx_gfs2_fill_super+0x10/0x10 [ 224.871584][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871616][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871644][ T6723] ? sb_set_blocksize+0x104/0x180 [ 224.871685][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871712][ T6723] ? setup_bdev_super+0x4c1/0x5b0 [ 224.871753][ T6723] get_tree_bdev_flags+0x40e/0x4d0 [ 224.871786][ T6723] ? __pfx_gfs2_fill_super+0x10/0x10 [ 224.871820][ T6723] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 224.871855][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.871887][ T6723] gfs2_get_tree+0x51/0x1e0 [ 224.871921][ T6723] vfs_get_tree+0x92/0x2b0 [ 224.871955][ T6723] do_new_mount+0x2a2/0x9e0 [ 224.871998][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872026][ T6723] ? ns_capable+0x8a/0xf0 [ 224.872052][ T6723] ? __pfx_do_new_mount+0x10/0x10 [ 224.872088][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872116][ T6723] ? path_mount+0x61c/0xfe0 [ 224.872149][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872183][ T6723] __se_sys_mount+0x317/0x410 [ 224.872222][ T6723] ? __pfx___se_sys_mount+0x10/0x10 [ 224.872264][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872293][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872323][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872351][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872379][ T6723] ? __x64_sys_mount+0x20/0xc0 [ 224.872416][ T6723] do_syscall_64+0xfa/0x3b0 [ 224.872458][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872486][ T6723] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 224.872510][ T6723] ? srso_alias_return_thunk+0x5/0xfbef5 [ 224.872538][ T6723] ? exc_page_fault+0x9f/0xf0 [ 224.872576][ T6723] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 224.872600][ T6723] RIP: 0033:0x7fe49699038a [ 224.872623][ T6723] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 224.872644][ T6723] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 224.872670][ T6723] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 224.872689][ T6723] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 224.872708][ T6723] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 224.872726][ T6723] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 224.872745][ T6723] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 224.872772][ T6723] [ 224.872807][ T6723] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 225.281152][ T6723] gfs2: fsid=__&+[$!: error -17 adding sysfs files 2025/08/22 13:59:07 executed programs: 174 [ 225.582572][ T6727] loop1: detected capacity change from 0 to 32768 [ 225.596383][ T6727] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 225.605551][ T6727] CPU: 0 UID: 0 PID: 6727 Comm: syz.1.189 Not tainted syzkaller #0 PREEMPT(full) [ 225.605583][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 225.605600][ T6727] Call Trace: [ 225.605609][ T6727] [ 225.605620][ T6727] dump_stack_lvl+0x189/0x250 [ 225.605662][ T6727] ? __pfx_dump_stack_lvl+0x10/0x10 [ 225.605692][ T6727] ? __pfx__printk+0x10/0x10 [ 225.605728][ T6727] ? kernfs_root+0x1c/0x230 [ 225.605761][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.605794][ T6727] ? kernfs_path_from_node+0x250/0x290 [ 225.605820][ T6727] ? kernfs_path_from_node+0x2f/0x290 [ 225.605850][ T6727] sysfs_create_dir_ns+0x259/0x280 [ 225.605877][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.605906][ T6727] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 225.605932][ T6727] ? do_raw_spin_unlock+0x122/0x240 [ 225.605969][ T6727] kobject_add_internal+0x59f/0xb40 [ 225.605998][ T6727] kobject_init_and_add+0x125/0x190 [ 225.606042][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606074][ T6727] ? __pfx_kobject_init_and_add+0x10/0x10 [ 225.606112][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606139][ T6727] ? __raw_spin_lock_init+0x45/0x100 [ 225.606171][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606199][ T6727] ? __init_swait_queue_head+0xa9/0x150 [ 225.606233][ T6727] gfs2_sys_fs_add+0x234/0x450 [ 225.606261][ T6727] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 225.606298][ T6727] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 225.606342][ T6727] gfs2_fill_super+0x13c0/0x20d0 [ 225.606389][ T6727] ? __pfx_gfs2_fill_super+0x10/0x10 [ 225.606420][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606452][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606480][ T6727] ? sb_set_blocksize+0x104/0x180 [ 225.606521][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606549][ T6727] ? setup_bdev_super+0x4c1/0x5b0 [ 225.606590][ T6727] get_tree_bdev_flags+0x40e/0x4d0 [ 225.606624][ T6727] ? __pfx_gfs2_fill_super+0x10/0x10 [ 225.606658][ T6727] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 225.606692][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606725][ T6727] gfs2_get_tree+0x51/0x1e0 [ 225.606758][ T6727] vfs_get_tree+0x92/0x2b0 [ 225.606792][ T6727] do_new_mount+0x2a2/0x9e0 [ 225.606836][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606864][ T6727] ? ns_capable+0x8a/0xf0 [ 225.606889][ T6727] ? __pfx_do_new_mount+0x10/0x10 [ 225.606926][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.606953][ T6727] ? path_mount+0x61c/0xfe0 [ 225.606987][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607021][ T6727] __se_sys_mount+0x317/0x410 [ 225.607062][ T6727] ? __pfx___se_sys_mount+0x10/0x10 [ 225.607098][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607129][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607157][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607185][ T6727] ? __x64_sys_mount+0x20/0xc0 [ 225.607223][ T6727] do_syscall_64+0xfa/0x3b0 [ 225.607265][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607301][ T6727] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.607325][ T6727] ? srso_alias_return_thunk+0x5/0xfbef5 [ 225.607354][ T6727] ? exc_page_fault+0x9f/0xf0 [ 225.607394][ T6727] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.607419][ T6727] RIP: 0033:0x7fe49699038a [ 225.607441][ T6727] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 225.607463][ T6727] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 225.607490][ T6727] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 225.607509][ T6727] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 225.607528][ T6727] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 225.607546][ T6727] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 225.607564][ T6727] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 225.607591][ T6727] [ 225.607613][ T6727] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 226.010882][ T6727] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 226.304262][ T6731] loop1: detected capacity change from 0 to 32768 [ 226.326719][ T6731] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 226.334231][ T6731] CPU: 1 UID: 0 PID: 6731 Comm: syz.1.190 Not tainted syzkaller #0 PREEMPT(full) [ 226.334264][ T6731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 226.334282][ T6731] Call Trace: [ 226.334291][ T6731] [ 226.334303][ T6731] dump_stack_lvl+0x189/0x250 [ 226.334342][ T6731] ? __pfx_dump_stack_lvl+0x10/0x10 [ 226.334371][ T6731] ? __pfx__printk+0x10/0x10 [ 226.334405][ T6731] ? kernfs_root+0x1c/0x230 [ 226.334429][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334454][ T6731] ? kernfs_path_from_node+0x250/0x290 [ 226.334473][ T6731] ? kernfs_path_from_node+0x2f/0x290 [ 226.334494][ T6731] sysfs_create_dir_ns+0x259/0x280 [ 226.334514][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334536][ T6731] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 226.334556][ T6731] ? do_raw_spin_unlock+0x122/0x240 [ 226.334584][ T6731] kobject_add_internal+0x59f/0xb40 [ 226.334606][ T6731] kobject_init_and_add+0x125/0x190 [ 226.334642][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334665][ T6731] ? __pfx_kobject_init_and_add+0x10/0x10 [ 226.334694][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334714][ T6731] ? __raw_spin_lock_init+0x45/0x100 [ 226.334736][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334757][ T6731] ? __init_swait_queue_head+0xa9/0x150 [ 226.334783][ T6731] gfs2_sys_fs_add+0x234/0x450 [ 226.334804][ T6731] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 226.334826][ T6731] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 226.334859][ T6731] gfs2_fill_super+0x13c0/0x20d0 [ 226.334894][ T6731] ? __pfx_gfs2_fill_super+0x10/0x10 [ 226.334917][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334940][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.334960][ T6731] ? sb_set_blocksize+0x104/0x180 [ 226.334991][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335012][ T6731] ? setup_bdev_super+0x4c1/0x5b0 [ 226.335042][ T6731] get_tree_bdev_flags+0x40e/0x4d0 [ 226.335066][ T6731] ? __pfx_gfs2_fill_super+0x10/0x10 [ 226.335090][ T6731] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 226.335116][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335140][ T6731] gfs2_get_tree+0x51/0x1e0 [ 226.335165][ T6731] vfs_get_tree+0x92/0x2b0 [ 226.335190][ T6731] do_new_mount+0x2a2/0x9e0 [ 226.335223][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335244][ T6731] ? ns_capable+0x8a/0xf0 [ 226.335262][ T6731] ? __pfx_do_new_mount+0x10/0x10 [ 226.335288][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335308][ T6731] ? path_mount+0x61c/0xfe0 [ 226.335333][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335358][ T6731] __se_sys_mount+0x317/0x410 [ 226.335388][ T6731] ? __pfx___se_sys_mount+0x10/0x10 [ 226.335413][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335435][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335456][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335477][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335498][ T6731] ? __x64_sys_mount+0x20/0xc0 [ 226.335525][ T6731] do_syscall_64+0xfa/0x3b0 [ 226.335555][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335577][ T6731] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 226.335595][ T6731] ? srso_alias_return_thunk+0x5/0xfbef5 [ 226.335618][ T6731] ? exc_page_fault+0x9f/0xf0 [ 226.335646][ T6731] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 226.335663][ T6731] RIP: 0033:0x7fe49699038a [ 226.335680][ T6731] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 226.335695][ T6731] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 226.335715][ T6731] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 226.335729][ T6731] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 226.335742][ T6731] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 226.335755][ T6731] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 226.335768][ T6731] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 226.335789][ T6731] [ 226.336125][ T6731] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 226.743429][ T6731] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 226.769856][ T52] Bluetooth: hci1: command 0x0406 tx timeout [ 227.040483][ T6735] loop1: detected capacity change from 0 to 32768 [ 227.062038][ T6735] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 227.069458][ T6735] CPU: 1 UID: 0 PID: 6735 Comm: syz.1.191 Not tainted syzkaller #0 PREEMPT(full) [ 227.069489][ T6735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 227.069507][ T6735] Call Trace: [ 227.069516][ T6735] [ 227.069533][ T6735] dump_stack_lvl+0x189/0x250 [ 227.069575][ T6735] ? __pfx_dump_stack_lvl+0x10/0x10 [ 227.069610][ T6735] ? __pfx__printk+0x10/0x10 [ 227.069649][ T6735] ? kernfs_root+0x1c/0x230 [ 227.069681][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.069714][ T6735] ? kernfs_path_from_node+0x250/0x290 [ 227.069741][ T6735] ? kernfs_path_from_node+0x2f/0x290 [ 227.069770][ T6735] sysfs_create_dir_ns+0x259/0x280 [ 227.069798][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.069828][ T6735] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 227.069855][ T6735] ? do_raw_spin_unlock+0x122/0x240 [ 227.069893][ T6735] kobject_add_internal+0x59f/0xb40 [ 227.069922][ T6735] kobject_init_and_add+0x125/0x190 [ 227.069966][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.069998][ T6735] ? __pfx_kobject_init_and_add+0x10/0x10 [ 227.070036][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070065][ T6735] ? __raw_spin_lock_init+0x45/0x100 [ 227.070095][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070123][ T6735] ? __init_swait_queue_head+0xa9/0x150 [ 227.070157][ T6735] gfs2_sys_fs_add+0x234/0x450 [ 227.070186][ T6735] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 227.070215][ T6735] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 227.070259][ T6735] gfs2_fill_super+0x13c0/0x20d0 [ 227.070306][ T6735] ? __pfx_gfs2_fill_super+0x10/0x10 [ 227.070338][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070371][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070400][ T6735] ? sb_set_blocksize+0x104/0x180 [ 227.070443][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070472][ T6735] ? setup_bdev_super+0x4c1/0x5b0 [ 227.070513][ T6735] get_tree_bdev_flags+0x40e/0x4d0 [ 227.070554][ T6735] ? __pfx_gfs2_fill_super+0x10/0x10 [ 227.070589][ T6735] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 227.070625][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070657][ T6735] gfs2_get_tree+0x51/0x1e0 [ 227.070691][ T6735] vfs_get_tree+0x92/0x2b0 [ 227.070725][ T6735] do_new_mount+0x2a2/0x9e0 [ 227.070770][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070798][ T6735] ? ns_capable+0x8a/0xf0 [ 227.070824][ T6735] ? __pfx_do_new_mount+0x10/0x10 [ 227.070860][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070888][ T6735] ? path_mount+0x61c/0xfe0 [ 227.070921][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.070955][ T6735] __se_sys_mount+0x317/0x410 [ 227.070996][ T6735] ? __pfx___se_sys_mount+0x10/0x10 [ 227.071032][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.071063][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.071091][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.071119][ T6735] ? __x64_sys_mount+0x20/0xc0 [ 227.071157][ T6735] do_syscall_64+0xfa/0x3b0 [ 227.071200][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.071229][ T6735] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 227.071253][ T6735] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.071282][ T6735] ? exc_page_fault+0x9f/0xf0 [ 227.071321][ T6735] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 227.071346][ T6735] RIP: 0033:0x7fe49699038a [ 227.071368][ T6735] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 227.071389][ T6735] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 227.071416][ T6735] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 227.071436][ T6735] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 227.071454][ T6735] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 227.071472][ T6735] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 227.071490][ T6735] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 227.071517][ T6735] [ 227.459489][ T6735] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 227.473815][ T6735] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 227.772700][ T6739] loop1: detected capacity change from 0 to 32768 [ 227.788037][ T6739] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 227.795950][ T6739] CPU: 0 UID: 0 PID: 6739 Comm: syz.1.192 Not tainted syzkaller #0 PREEMPT(full) [ 227.795982][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 227.795998][ T6739] Call Trace: [ 227.796008][ T6739] [ 227.796018][ T6739] dump_stack_lvl+0x189/0x250 [ 227.796060][ T6739] ? __pfx_dump_stack_lvl+0x10/0x10 [ 227.796091][ T6739] ? __pfx__printk+0x10/0x10 [ 227.796129][ T6739] ? kernfs_root+0x1c/0x230 [ 227.796161][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796194][ T6739] ? kernfs_path_from_node+0x250/0x290 [ 227.796220][ T6739] ? kernfs_path_from_node+0x2f/0x290 [ 227.796249][ T6739] sysfs_create_dir_ns+0x259/0x280 [ 227.796277][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796314][ T6739] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 227.796340][ T6739] ? do_raw_spin_unlock+0x122/0x240 [ 227.796378][ T6739] kobject_add_internal+0x59f/0xb40 [ 227.796409][ T6739] kobject_init_and_add+0x125/0x190 [ 227.796452][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796485][ T6739] ? __pfx_kobject_init_and_add+0x10/0x10 [ 227.796523][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796551][ T6739] ? __raw_spin_lock_init+0x45/0x100 [ 227.796581][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796610][ T6739] ? __init_swait_queue_head+0xa9/0x150 [ 227.796644][ T6739] gfs2_sys_fs_add+0x234/0x450 [ 227.796672][ T6739] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 227.796702][ T6739] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 227.796747][ T6739] gfs2_fill_super+0x13c0/0x20d0 [ 227.796794][ T6739] ? __pfx_gfs2_fill_super+0x10/0x10 [ 227.796825][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796856][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796886][ T6739] ? sb_set_blocksize+0x104/0x180 [ 227.796928][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.796956][ T6739] ? setup_bdev_super+0x4c1/0x5b0 [ 227.796997][ T6739] get_tree_bdev_flags+0x40e/0x4d0 [ 227.797030][ T6739] ? __pfx_gfs2_fill_super+0x10/0x10 [ 227.797062][ T6739] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 227.797097][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797130][ T6739] gfs2_get_tree+0x51/0x1e0 [ 227.797165][ T6739] vfs_get_tree+0x92/0x2b0 [ 227.797199][ T6739] do_new_mount+0x2a2/0x9e0 [ 227.797243][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797271][ T6739] ? ns_capable+0x8a/0xf0 [ 227.797303][ T6739] ? __pfx_do_new_mount+0x10/0x10 [ 227.797337][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797365][ T6739] ? path_mount+0x61c/0xfe0 [ 227.797398][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797432][ T6739] __se_sys_mount+0x317/0x410 [ 227.797472][ T6739] ? __pfx___se_sys_mount+0x10/0x10 [ 227.797507][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797539][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797567][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797594][ T6739] ? __x64_sys_mount+0x20/0xc0 [ 227.797632][ T6739] do_syscall_64+0xfa/0x3b0 [ 227.797675][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797704][ T6739] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 227.797727][ T6739] ? srso_alias_return_thunk+0x5/0xfbef5 [ 227.797755][ T6739] ? exc_page_fault+0x9f/0xf0 [ 227.797794][ T6739] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 227.797817][ T6739] RIP: 0033:0x7fe49699038a [ 227.797839][ T6739] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 227.797861][ T6739] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 227.797888][ T6739] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 227.797907][ T6739] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 227.797925][ T6739] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 227.797943][ T6739] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 227.797962][ T6739] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 227.797988][ T6739] [ 227.798011][ T6739] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 228.200719][ T6739] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 228.487073][ T6743] loop1: detected capacity change from 0 to 32768 [ 228.499272][ T6743] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 228.507117][ T6743] CPU: 0 UID: 0 PID: 6743 Comm: syz.1.193 Not tainted syzkaller #0 PREEMPT(full) [ 228.507153][ T6743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 228.507170][ T6743] Call Trace: [ 228.507181][ T6743] [ 228.507192][ T6743] dump_stack_lvl+0x189/0x250 [ 228.507234][ T6743] ? __pfx_dump_stack_lvl+0x10/0x10 [ 228.507264][ T6743] ? __pfx__printk+0x10/0x10 [ 228.507301][ T6743] ? kernfs_root+0x1c/0x230 [ 228.507333][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.507366][ T6743] ? kernfs_path_from_node+0x250/0x290 [ 228.507393][ T6743] ? kernfs_path_from_node+0x2f/0x290 [ 228.507422][ T6743] sysfs_create_dir_ns+0x259/0x280 [ 228.507451][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.507481][ T6743] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 228.507508][ T6743] ? do_raw_spin_unlock+0x122/0x240 [ 228.507554][ T6743] kobject_add_internal+0x59f/0xb40 [ 228.507584][ T6743] kobject_init_and_add+0x125/0x190 [ 228.507629][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.507661][ T6743] ? __pfx_kobject_init_and_add+0x10/0x10 [ 228.507700][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.507728][ T6743] ? __raw_spin_lock_init+0x45/0x100 [ 228.507758][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.507787][ T6743] ? __init_swait_queue_head+0xa9/0x150 [ 228.507821][ T6743] gfs2_sys_fs_add+0x234/0x450 [ 228.507850][ T6743] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 228.507880][ T6743] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 228.507926][ T6743] gfs2_fill_super+0x13c0/0x20d0 [ 228.507974][ T6743] ? __pfx_gfs2_fill_super+0x10/0x10 [ 228.508012][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508044][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508072][ T6743] ? sb_set_blocksize+0x104/0x180 [ 228.508116][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508144][ T6743] ? setup_bdev_super+0x4c1/0x5b0 [ 228.508184][ T6743] get_tree_bdev_flags+0x40e/0x4d0 [ 228.508220][ T6743] ? __pfx_gfs2_fill_super+0x10/0x10 [ 228.508253][ T6743] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 228.508289][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508322][ T6743] gfs2_get_tree+0x51/0x1e0 [ 228.508356][ T6743] vfs_get_tree+0x92/0x2b0 [ 228.508391][ T6743] do_new_mount+0x2a2/0x9e0 [ 228.508435][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508464][ T6743] ? ns_capable+0x8a/0xf0 [ 228.508489][ T6743] ? __pfx_do_new_mount+0x10/0x10 [ 228.508524][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508560][ T6743] ? path_mount+0x61c/0xfe0 [ 228.508593][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508628][ T6743] __se_sys_mount+0x317/0x410 [ 228.508670][ T6743] ? __pfx___se_sys_mount+0x10/0x10 [ 228.508705][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508735][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508766][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508794][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508822][ T6743] ? __x64_sys_mount+0x20/0xc0 [ 228.508860][ T6743] do_syscall_64+0xfa/0x3b0 [ 228.508902][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508936][ T6743] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 228.508960][ T6743] ? srso_alias_return_thunk+0x5/0xfbef5 [ 228.508988][ T6743] ? exc_page_fault+0x9f/0xf0 [ 228.509026][ T6743] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 228.509051][ T6743] RIP: 0033:0x7fe49699038a [ 228.509074][ T6743] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 228.509096][ T6743] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 228.509123][ T6743] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 228.509143][ T6743] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 228.509161][ T6743] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 228.509179][ T6743] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 228.509197][ T6743] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 228.509225][ T6743] [ 228.509249][ T6743] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 228.917751][ T6743] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 229.206834][ T6747] loop1: detected capacity change from 0 to 32768 [ 229.222795][ T6747] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 229.230400][ T6747] CPU: 1 UID: 0 PID: 6747 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT(full) [ 229.230429][ T6747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 229.230446][ T6747] Call Trace: [ 229.230455][ T6747] [ 229.230466][ T6747] dump_stack_lvl+0x189/0x250 [ 229.230507][ T6747] ? __pfx_dump_stack_lvl+0x10/0x10 [ 229.230536][ T6747] ? __pfx__printk+0x10/0x10 [ 229.230572][ T6747] ? kernfs_root+0x1c/0x230 [ 229.230604][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.230643][ T6747] ? kernfs_path_from_node+0x250/0x290 [ 229.230669][ T6747] ? kernfs_path_from_node+0x2f/0x290 [ 229.230697][ T6747] sysfs_create_dir_ns+0x259/0x280 [ 229.230724][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.230754][ T6747] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 229.230780][ T6747] ? do_raw_spin_unlock+0x122/0x240 [ 229.230817][ T6747] kobject_add_internal+0x59f/0xb40 [ 229.230844][ T6747] kobject_init_and_add+0x125/0x190 [ 229.230887][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.230919][ T6747] ? __pfx_kobject_init_and_add+0x10/0x10 [ 229.230956][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.230985][ T6747] ? __raw_spin_lock_init+0x45/0x100 [ 229.231016][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231044][ T6747] ? __init_swait_queue_head+0xa9/0x150 [ 229.231079][ T6747] gfs2_sys_fs_add+0x234/0x450 [ 229.231106][ T6747] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 229.231136][ T6747] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 229.231183][ T6747] gfs2_fill_super+0x13c0/0x20d0 [ 229.231229][ T6747] ? __pfx_gfs2_fill_super+0x10/0x10 [ 229.231261][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231294][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231323][ T6747] ? sb_set_blocksize+0x104/0x180 [ 229.231366][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231394][ T6747] ? setup_bdev_super+0x4c1/0x5b0 [ 229.231435][ T6747] get_tree_bdev_flags+0x40e/0x4d0 [ 229.231469][ T6747] ? __pfx_gfs2_fill_super+0x10/0x10 [ 229.231507][ T6747] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 229.231542][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231576][ T6747] gfs2_get_tree+0x51/0x1e0 [ 229.231617][ T6747] vfs_get_tree+0x92/0x2b0 [ 229.231651][ T6747] do_new_mount+0x2a2/0x9e0 [ 229.231694][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231722][ T6747] ? ns_capable+0x8a/0xf0 [ 229.231748][ T6747] ? __pfx_do_new_mount+0x10/0x10 [ 229.231784][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231811][ T6747] ? path_mount+0x61c/0xfe0 [ 229.231845][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231879][ T6747] __se_sys_mount+0x317/0x410 [ 229.231920][ T6747] ? __pfx___se_sys_mount+0x10/0x10 [ 229.231956][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.231985][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.232016][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.232044][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.232072][ T6747] ? __x64_sys_mount+0x20/0xc0 [ 229.232110][ T6747] do_syscall_64+0xfa/0x3b0 [ 229.232154][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.232182][ T6747] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.232206][ T6747] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.232234][ T6747] ? exc_page_fault+0x9f/0xf0 [ 229.232272][ T6747] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.232297][ T6747] RIP: 0033:0x7fe49699038a [ 229.232319][ T6747] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 229.232341][ T6747] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 229.232367][ T6747] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 229.232386][ T6747] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 229.232405][ T6747] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 229.232423][ T6747] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 229.232441][ T6747] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 229.232468][ T6747] [ 229.232524][ T6747] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 229.639295][ T6747] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 229.942298][ T6751] loop1: detected capacity change from 0 to 32768 [ 229.970578][ T6751] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 229.978000][ T6751] CPU: 1 UID: 0 PID: 6751 Comm: syz.1.195 Not tainted syzkaller #0 PREEMPT(full) [ 229.978022][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 229.978034][ T6751] Call Trace: [ 229.978042][ T6751] [ 229.978050][ T6751] dump_stack_lvl+0x189/0x250 [ 229.978082][ T6751] ? __pfx_dump_stack_lvl+0x10/0x10 [ 229.978105][ T6751] ? __pfx__printk+0x10/0x10 [ 229.978134][ T6751] ? kernfs_root+0x1c/0x230 [ 229.978159][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978184][ T6751] ? kernfs_path_from_node+0x250/0x290 [ 229.978203][ T6751] ? kernfs_path_from_node+0x2f/0x290 [ 229.978225][ T6751] sysfs_create_dir_ns+0x259/0x280 [ 229.978246][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978274][ T6751] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 229.978294][ T6751] ? do_raw_spin_unlock+0x122/0x240 [ 229.978322][ T6751] kobject_add_internal+0x59f/0xb40 [ 229.978344][ T6751] kobject_init_and_add+0x125/0x190 [ 229.978377][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978401][ T6751] ? __pfx_kobject_init_and_add+0x10/0x10 [ 229.978429][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978450][ T6751] ? __raw_spin_lock_init+0x45/0x100 [ 229.978472][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978493][ T6751] ? __init_swait_queue_head+0xa9/0x150 [ 229.978520][ T6751] gfs2_sys_fs_add+0x234/0x450 [ 229.978541][ T6751] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 229.978562][ T6751] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 229.978597][ T6751] gfs2_fill_super+0x13c0/0x20d0 [ 229.978633][ T6751] ? __pfx_gfs2_fill_super+0x10/0x10 [ 229.978655][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978679][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978700][ T6751] ? sb_set_blocksize+0x104/0x180 [ 229.978733][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978754][ T6751] ? setup_bdev_super+0x4c1/0x5b0 [ 229.978784][ T6751] get_tree_bdev_flags+0x40e/0x4d0 [ 229.978809][ T6751] ? __pfx_gfs2_fill_super+0x10/0x10 [ 229.978834][ T6751] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 229.978860][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978884][ T6751] gfs2_get_tree+0x51/0x1e0 [ 229.978909][ T6751] vfs_get_tree+0x92/0x2b0 [ 229.978934][ T6751] do_new_mount+0x2a2/0x9e0 [ 229.978967][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.978988][ T6751] ? ns_capable+0x8a/0xf0 [ 229.979007][ T6751] ? __pfx_do_new_mount+0x10/0x10 [ 229.979033][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979053][ T6751] ? path_mount+0x61c/0xfe0 [ 229.979078][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979103][ T6751] __se_sys_mount+0x317/0x410 [ 229.979133][ T6751] ? __pfx___se_sys_mount+0x10/0x10 [ 229.979158][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979182][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979202][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979223][ T6751] ? __x64_sys_mount+0x20/0xc0 [ 229.979250][ T6751] do_syscall_64+0xfa/0x3b0 [ 229.979287][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979309][ T6751] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.979326][ T6751] ? srso_alias_return_thunk+0x5/0xfbef5 [ 229.979346][ T6751] ? exc_page_fault+0x9f/0xf0 [ 229.979376][ T6751] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.979394][ T6751] RIP: 0033:0x7fe49699038a [ 229.979411][ T6751] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 229.979427][ T6751] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 229.979447][ T6751] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 229.979461][ T6751] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 229.979475][ T6751] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 229.979488][ T6751] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 229.979501][ T6751] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 229.979522][ T6751] [ 229.979538][ T6751] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 230.382217][ T6751] gfs2: fsid=__&+[$!: error -17 adding sysfs files 2025/08/22 13:59:12 executed programs: 181 [ 230.673472][ T6755] loop1: detected capacity change from 0 to 32768 [ 230.687795][ T6755] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 230.695750][ T6755] CPU: 1 UID: 0 PID: 6755 Comm: syz.1.196 Not tainted syzkaller #0 PREEMPT(full) [ 230.695781][ T6755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 230.695797][ T6755] Call Trace: [ 230.695806][ T6755] [ 230.695817][ T6755] dump_stack_lvl+0x189/0x250 [ 230.695858][ T6755] ? __pfx_dump_stack_lvl+0x10/0x10 [ 230.695888][ T6755] ? __pfx__printk+0x10/0x10 [ 230.695923][ T6755] ? kernfs_root+0x1c/0x230 [ 230.695954][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.695986][ T6755] ? kernfs_path_from_node+0x250/0x290 [ 230.696011][ T6755] ? kernfs_path_from_node+0x2f/0x290 [ 230.696040][ T6755] sysfs_create_dir_ns+0x259/0x280 [ 230.696069][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696099][ T6755] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 230.696127][ T6755] ? do_raw_spin_unlock+0x122/0x240 [ 230.696163][ T6755] kobject_add_internal+0x59f/0xb40 [ 230.696192][ T6755] kobject_init_and_add+0x125/0x190 [ 230.696234][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696266][ T6755] ? __pfx_kobject_init_and_add+0x10/0x10 [ 230.696313][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696341][ T6755] ? __raw_spin_lock_init+0x45/0x100 [ 230.696372][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696400][ T6755] ? __init_swait_queue_head+0xa9/0x150 [ 230.696433][ T6755] gfs2_sys_fs_add+0x234/0x450 [ 230.696460][ T6755] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 230.696489][ T6755] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 230.696534][ T6755] gfs2_fill_super+0x13c0/0x20d0 [ 230.696581][ T6755] ? __pfx_gfs2_fill_super+0x10/0x10 [ 230.696613][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696644][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696673][ T6755] ? sb_set_blocksize+0x104/0x180 [ 230.696714][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696742][ T6755] ? setup_bdev_super+0x4c1/0x5b0 [ 230.696782][ T6755] get_tree_bdev_flags+0x40e/0x4d0 [ 230.696815][ T6755] ? __pfx_gfs2_fill_super+0x10/0x10 [ 230.696848][ T6755] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 230.696883][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.696916][ T6755] gfs2_get_tree+0x51/0x1e0 [ 230.696950][ T6755] vfs_get_tree+0x92/0x2b0 [ 230.696985][ T6755] do_new_mount+0x2a2/0x9e0 [ 230.697029][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697057][ T6755] ? ns_capable+0x8a/0xf0 [ 230.697082][ T6755] ? __pfx_do_new_mount+0x10/0x10 [ 230.697118][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697145][ T6755] ? path_mount+0x61c/0xfe0 [ 230.697179][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697213][ T6755] __se_sys_mount+0x317/0x410 [ 230.697252][ T6755] ? __pfx___se_sys_mount+0x10/0x10 [ 230.697287][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697325][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697353][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697381][ T6755] ? __x64_sys_mount+0x20/0xc0 [ 230.697420][ T6755] do_syscall_64+0xfa/0x3b0 [ 230.697461][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697490][ T6755] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 230.697514][ T6755] ? srso_alias_return_thunk+0x5/0xfbef5 [ 230.697542][ T6755] ? exc_page_fault+0x9f/0xf0 [ 230.697581][ T6755] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 230.697604][ T6755] RIP: 0033:0x7fe49699038a [ 230.697626][ T6755] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 230.697648][ T6755] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 230.697674][ T6755] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 230.697692][ T6755] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 230.697711][ T6755] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 230.697729][ T6755] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 230.697746][ T6755] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 230.697774][ T6755] [ 230.697796][ T6755] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 231.100008][ T6755] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 231.399455][ T6759] loop1: detected capacity change from 0 to 32768 [ 231.411223][ T6759] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 231.418633][ T6759] CPU: 0 UID: 0 PID: 6759 Comm: syz.1.197 Not tainted syzkaller #0 PREEMPT(full) [ 231.418662][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 231.418678][ T6759] Call Trace: [ 231.418687][ T6759] [ 231.418697][ T6759] dump_stack_lvl+0x189/0x250 [ 231.418737][ T6759] ? __pfx_dump_stack_lvl+0x10/0x10 [ 231.418767][ T6759] ? __pfx__printk+0x10/0x10 [ 231.418803][ T6759] ? kernfs_root+0x1c/0x230 [ 231.418835][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.418868][ T6759] ? kernfs_path_from_node+0x250/0x290 [ 231.418895][ T6759] ? kernfs_path_from_node+0x2f/0x290 [ 231.418923][ T6759] sysfs_create_dir_ns+0x259/0x280 [ 231.418951][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.418982][ T6759] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 231.419008][ T6759] ? do_raw_spin_unlock+0x122/0x240 [ 231.419045][ T6759] kobject_add_internal+0x59f/0xb40 [ 231.419074][ T6759] kobject_init_and_add+0x125/0x190 [ 231.419117][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419148][ T6759] ? __pfx_kobject_init_and_add+0x10/0x10 [ 231.419184][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419212][ T6759] ? __raw_spin_lock_init+0x45/0x100 [ 231.419243][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419271][ T6759] ? __init_swait_queue_head+0xa9/0x150 [ 231.419305][ T6759] gfs2_sys_fs_add+0x234/0x450 [ 231.419334][ T6759] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 231.419362][ T6759] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 231.419416][ T6759] gfs2_fill_super+0x13c0/0x20d0 [ 231.419462][ T6759] ? __pfx_gfs2_fill_super+0x10/0x10 [ 231.419493][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419524][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419552][ T6759] ? sb_set_blocksize+0x104/0x180 [ 231.419599][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419627][ T6759] ? setup_bdev_super+0x4c1/0x5b0 [ 231.419667][ T6759] get_tree_bdev_flags+0x40e/0x4d0 [ 231.419700][ T6759] ? __pfx_gfs2_fill_super+0x10/0x10 [ 231.419734][ T6759] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 231.419768][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419800][ T6759] gfs2_get_tree+0x51/0x1e0 [ 231.419833][ T6759] vfs_get_tree+0x92/0x2b0 [ 231.419867][ T6759] do_new_mount+0x2a2/0x9e0 [ 231.419908][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.419935][ T6759] ? ns_capable+0x8a/0xf0 [ 231.419960][ T6759] ? __pfx_do_new_mount+0x10/0x10 [ 231.419994][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420022][ T6759] ? path_mount+0x61c/0xfe0 [ 231.420056][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420089][ T6759] __se_sys_mount+0x317/0x410 [ 231.420128][ T6759] ? __pfx___se_sys_mount+0x10/0x10 [ 231.420163][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420191][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420221][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420248][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420275][ T6759] ? __x64_sys_mount+0x20/0xc0 [ 231.420312][ T6759] do_syscall_64+0xfa/0x3b0 [ 231.420353][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420386][ T6759] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 231.420409][ T6759] ? srso_alias_return_thunk+0x5/0xfbef5 [ 231.420437][ T6759] ? exc_page_fault+0x9f/0xf0 [ 231.420475][ T6759] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 231.420498][ T6759] RIP: 0033:0x7fe49699038a [ 231.420519][ T6759] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 231.420540][ T6759] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 231.420567][ T6759] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 231.420586][ T6759] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 231.420604][ T6759] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 231.420621][ T6759] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 231.420639][ T6759] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 231.420666][ T6759] [ 231.811843][ T6759] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 231.826115][ T6759] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 232.122300][ T6763] loop1: detected capacity change from 0 to 32768 [ 232.155810][ T6763] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 232.164053][ T6763] CPU: 0 UID: 0 PID: 6763 Comm: syz.1.198 Not tainted syzkaller #0 PREEMPT(full) [ 232.164083][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 232.164101][ T6763] Call Trace: [ 232.164110][ T6763] [ 232.164121][ T6763] dump_stack_lvl+0x189/0x250 [ 232.164163][ T6763] ? __pfx_dump_stack_lvl+0x10/0x10 [ 232.164194][ T6763] ? __pfx__printk+0x10/0x10 [ 232.164231][ T6763] ? kernfs_root+0x1c/0x230 [ 232.164263][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164296][ T6763] ? kernfs_path_from_node+0x250/0x290 [ 232.164323][ T6763] ? kernfs_path_from_node+0x2f/0x290 [ 232.164351][ T6763] sysfs_create_dir_ns+0x259/0x280 [ 232.164379][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164409][ T6763] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 232.164436][ T6763] ? do_raw_spin_unlock+0x122/0x240 [ 232.164473][ T6763] kobject_add_internal+0x59f/0xb40 [ 232.164502][ T6763] kobject_init_and_add+0x125/0x190 [ 232.164548][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164581][ T6763] ? __pfx_kobject_init_and_add+0x10/0x10 [ 232.164618][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164647][ T6763] ? __raw_spin_lock_init+0x45/0x100 [ 232.164677][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164706][ T6763] ? __init_swait_queue_head+0xa9/0x150 [ 232.164740][ T6763] gfs2_sys_fs_add+0x234/0x450 [ 232.164767][ T6763] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 232.164796][ T6763] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 232.164841][ T6763] gfs2_fill_super+0x13c0/0x20d0 [ 232.164885][ T6763] ? __pfx_gfs2_fill_super+0x10/0x10 [ 232.164916][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164948][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.164976][ T6763] ? sb_set_blocksize+0x104/0x180 [ 232.165018][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165044][ T6763] ? setup_bdev_super+0x4c1/0x5b0 [ 232.165082][ T6763] get_tree_bdev_flags+0x40e/0x4d0 [ 232.165114][ T6763] ? __pfx_gfs2_fill_super+0x10/0x10 [ 232.165146][ T6763] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 232.165180][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165209][ T6763] gfs2_get_tree+0x51/0x1e0 [ 232.165242][ T6763] vfs_get_tree+0x92/0x2b0 [ 232.165292][ T6763] do_new_mount+0x2a2/0x9e0 [ 232.165333][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165361][ T6763] ? ns_capable+0x8a/0xf0 [ 232.165386][ T6763] ? __pfx_do_new_mount+0x10/0x10 [ 232.165421][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165449][ T6763] ? path_mount+0x61c/0xfe0 [ 232.165482][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165516][ T6763] __se_sys_mount+0x317/0x410 [ 232.165562][ T6763] ? __pfx___se_sys_mount+0x10/0x10 [ 232.165597][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165625][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165656][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165684][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165712][ T6763] ? __x64_sys_mount+0x20/0xc0 [ 232.165749][ T6763] do_syscall_64+0xfa/0x3b0 [ 232.165790][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165819][ T6763] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.165842][ T6763] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.165870][ T6763] ? exc_page_fault+0x9f/0xf0 [ 232.165908][ T6763] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.165932][ T6763] RIP: 0033:0x7fe49699038a [ 232.165954][ T6763] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 232.165975][ T6763] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 232.166002][ T6763] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 232.166021][ T6763] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 232.166040][ T6763] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 232.166057][ T6763] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 232.166075][ T6763] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 232.166102][ T6763] [ 232.166124][ T6763] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 232.573220][ T6763] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 232.869365][ T6767] loop1: detected capacity change from 0 to 32768 [ 232.878619][ T6767] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 232.886196][ T6767] CPU: 0 UID: 0 PID: 6767 Comm: syz.1.199 Not tainted syzkaller #0 PREEMPT(full) [ 232.886224][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 232.886241][ T6767] Call Trace: [ 232.886250][ T6767] [ 232.886260][ T6767] dump_stack_lvl+0x189/0x250 [ 232.886301][ T6767] ? __pfx_dump_stack_lvl+0x10/0x10 [ 232.886330][ T6767] ? __pfx__printk+0x10/0x10 [ 232.886366][ T6767] ? kernfs_root+0x1c/0x230 [ 232.886397][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.886429][ T6767] ? kernfs_path_from_node+0x250/0x290 [ 232.886455][ T6767] ? kernfs_path_from_node+0x2f/0x290 [ 232.886483][ T6767] sysfs_create_dir_ns+0x259/0x280 [ 232.886510][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.886539][ T6767] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 232.886565][ T6767] ? do_raw_spin_unlock+0x122/0x240 [ 232.886602][ T6767] kobject_add_internal+0x59f/0xb40 [ 232.886636][ T6767] kobject_init_and_add+0x125/0x190 [ 232.886677][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.886709][ T6767] ? __pfx_kobject_init_and_add+0x10/0x10 [ 232.886746][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.886773][ T6767] ? __raw_spin_lock_init+0x45/0x100 [ 232.886803][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.886830][ T6767] ? __init_swait_queue_head+0xa9/0x150 [ 232.886863][ T6767] gfs2_sys_fs_add+0x234/0x450 [ 232.886890][ T6767] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 232.886919][ T6767] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 232.886963][ T6767] gfs2_fill_super+0x13c0/0x20d0 [ 232.887008][ T6767] ? __pfx_gfs2_fill_super+0x10/0x10 [ 232.887039][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887070][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887097][ T6767] ? sb_set_blocksize+0x104/0x180 [ 232.887140][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887167][ T6767] ? setup_bdev_super+0x4c1/0x5b0 [ 232.887207][ T6767] get_tree_bdev_flags+0x40e/0x4d0 [ 232.887240][ T6767] ? __pfx_gfs2_fill_super+0x10/0x10 [ 232.887271][ T6767] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 232.887306][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887337][ T6767] gfs2_get_tree+0x51/0x1e0 [ 232.887370][ T6767] vfs_get_tree+0x92/0x2b0 [ 232.887404][ T6767] do_new_mount+0x2a2/0x9e0 [ 232.887446][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887473][ T6767] ? ns_capable+0x8a/0xf0 [ 232.887497][ T6767] ? __pfx_do_new_mount+0x10/0x10 [ 232.887531][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887559][ T6767] ? path_mount+0x61c/0xfe0 [ 232.887592][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887630][ T6767] __se_sys_mount+0x317/0x410 [ 232.887669][ T6767] ? __pfx___se_sys_mount+0x10/0x10 [ 232.887703][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887731][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887760][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887788][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887815][ T6767] ? __x64_sys_mount+0x20/0xc0 [ 232.887851][ T6767] do_syscall_64+0xfa/0x3b0 [ 232.887890][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887919][ T6767] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.887942][ T6767] ? srso_alias_return_thunk+0x5/0xfbef5 [ 232.887969][ T6767] ? exc_page_fault+0x9f/0xf0 [ 232.888006][ T6767] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.888029][ T6767] RIP: 0033:0x7fe49699038a [ 232.888049][ T6767] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 232.888071][ T6767] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 232.888097][ T6767] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 232.888116][ T6767] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 232.888134][ T6767] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 232.888151][ T6767] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 232.888169][ T6767] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 232.888196][ T6767] [ 232.888217][ T6767] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 233.295666][ T6767] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 233.586783][ T6771] loop1: detected capacity change from 0 to 32768 [ 233.606403][ T6771] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 233.613929][ T6771] CPU: 0 UID: 0 PID: 6771 Comm: syz.1.200 Not tainted syzkaller #0 PREEMPT(full) [ 233.613959][ T6771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 233.613976][ T6771] Call Trace: [ 233.613986][ T6771] [ 233.613997][ T6771] dump_stack_lvl+0x189/0x250 [ 233.614038][ T6771] ? __pfx_dump_stack_lvl+0x10/0x10 [ 233.614068][ T6771] ? __pfx__printk+0x10/0x10 [ 233.614103][ T6771] ? kernfs_root+0x1c/0x230 [ 233.614134][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614166][ T6771] ? kernfs_path_from_node+0x250/0x290 [ 233.614193][ T6771] ? kernfs_path_from_node+0x2f/0x290 [ 233.614221][ T6771] sysfs_create_dir_ns+0x259/0x280 [ 233.614248][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614277][ T6771] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 233.614303][ T6771] ? do_raw_spin_unlock+0x122/0x240 [ 233.614339][ T6771] kobject_add_internal+0x59f/0xb40 [ 233.614369][ T6771] kobject_init_and_add+0x125/0x190 [ 233.614422][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614455][ T6771] ? __pfx_kobject_init_and_add+0x10/0x10 [ 233.614492][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614520][ T6771] ? __raw_spin_lock_init+0x45/0x100 [ 233.614551][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614579][ T6771] ? __init_swait_queue_head+0xa9/0x150 [ 233.614612][ T6771] gfs2_sys_fs_add+0x234/0x450 [ 233.614640][ T6771] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 233.614669][ T6771] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 233.614714][ T6771] gfs2_fill_super+0x13c0/0x20d0 [ 233.614757][ T6771] ? __pfx_gfs2_fill_super+0x10/0x10 [ 233.614789][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614821][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614849][ T6771] ? sb_set_blocksize+0x104/0x180 [ 233.614891][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.614919][ T6771] ? setup_bdev_super+0x4c1/0x5b0 [ 233.614959][ T6771] get_tree_bdev_flags+0x40e/0x4d0 [ 233.614992][ T6771] ? __pfx_gfs2_fill_super+0x10/0x10 [ 233.615025][ T6771] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 233.615060][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615092][ T6771] gfs2_get_tree+0x51/0x1e0 [ 233.615126][ T6771] vfs_get_tree+0x92/0x2b0 [ 233.615163][ T6771] do_new_mount+0x2a2/0x9e0 [ 233.615205][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615234][ T6771] ? ns_capable+0x8a/0xf0 [ 233.615259][ T6771] ? __pfx_do_new_mount+0x10/0x10 [ 233.615295][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615323][ T6771] ? path_mount+0x61c/0xfe0 [ 233.615356][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615399][ T6771] __se_sys_mount+0x317/0x410 [ 233.615439][ T6771] ? __pfx___se_sys_mount+0x10/0x10 [ 233.615473][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615501][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615532][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615560][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615588][ T6771] ? __x64_sys_mount+0x20/0xc0 [ 233.615626][ T6771] do_syscall_64+0xfa/0x3b0 [ 233.615666][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615695][ T6771] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 233.615718][ T6771] ? srso_alias_return_thunk+0x5/0xfbef5 [ 233.615747][ T6771] ? exc_page_fault+0x9f/0xf0 [ 233.615781][ T6771] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 233.615805][ T6771] RIP: 0033:0x7fe49699038a [ 233.615828][ T6771] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 233.615850][ T6771] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 233.615878][ T6771] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 233.615897][ T6771] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 233.615917][ T6771] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 233.615934][ T6771] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 233.615953][ T6771] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 233.615980][ T6771] [ 233.616079][ T6771] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 234.027616][ T6771] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 234.332835][ T6775] loop1: detected capacity change from 0 to 32768 [ 234.354565][ T6775] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 234.362329][ T6775] CPU: 0 UID: 0 PID: 6775 Comm: syz.1.201 Not tainted syzkaller #0 PREEMPT(full) [ 234.362361][ T6775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 234.362379][ T6775] Call Trace: [ 234.362390][ T6775] [ 234.362400][ T6775] dump_stack_lvl+0x189/0x250 [ 234.362446][ T6775] ? __pfx_dump_stack_lvl+0x10/0x10 [ 234.362475][ T6775] ? __pfx__printk+0x10/0x10 [ 234.362513][ T6775] ? kernfs_root+0x1c/0x230 [ 234.362545][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.362579][ T6775] ? kernfs_path_from_node+0x250/0x290 [ 234.362605][ T6775] ? kernfs_path_from_node+0x2f/0x290 [ 234.362638][ T6775] sysfs_create_dir_ns+0x259/0x280 [ 234.362665][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.362695][ T6775] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 234.362722][ T6775] ? do_raw_spin_unlock+0x122/0x240 [ 234.362760][ T6775] kobject_add_internal+0x59f/0xb40 [ 234.362789][ T6775] kobject_init_and_add+0x125/0x190 [ 234.362834][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.362867][ T6775] ? __pfx_kobject_init_and_add+0x10/0x10 [ 234.362905][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.362933][ T6775] ? __raw_spin_lock_init+0x45/0x100 [ 234.362964][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.362992][ T6775] ? __init_swait_queue_head+0xa9/0x150 [ 234.363027][ T6775] gfs2_sys_fs_add+0x234/0x450 [ 234.363054][ T6775] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 234.363083][ T6775] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 234.363128][ T6775] gfs2_fill_super+0x13c0/0x20d0 [ 234.363174][ T6775] ? __pfx_gfs2_fill_super+0x10/0x10 [ 234.363205][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363237][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363265][ T6775] ? sb_set_blocksize+0x104/0x180 [ 234.363308][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363336][ T6775] ? setup_bdev_super+0x4c1/0x5b0 [ 234.363376][ T6775] get_tree_bdev_flags+0x40e/0x4d0 [ 234.363409][ T6775] ? __pfx_gfs2_fill_super+0x10/0x10 [ 234.363441][ T6775] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 234.363477][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363514][ T6775] gfs2_get_tree+0x51/0x1e0 [ 234.363548][ T6775] vfs_get_tree+0x92/0x2b0 [ 234.363583][ T6775] do_new_mount+0x2a2/0x9e0 [ 234.363623][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363656][ T6775] ? ns_capable+0x8a/0xf0 [ 234.363681][ T6775] ? __pfx_do_new_mount+0x10/0x10 [ 234.363716][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363744][ T6775] ? path_mount+0x61c/0xfe0 [ 234.363777][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363811][ T6775] __se_sys_mount+0x317/0x410 [ 234.363852][ T6775] ? __pfx___se_sys_mount+0x10/0x10 [ 234.363887][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363916][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363947][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.363974][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.364002][ T6775] ? __x64_sys_mount+0x20/0xc0 [ 234.364041][ T6775] do_syscall_64+0xfa/0x3b0 [ 234.364077][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.364103][ T6775] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 234.364125][ T6775] ? srso_alias_return_thunk+0x5/0xfbef5 [ 234.364154][ T6775] ? exc_page_fault+0x9f/0xf0 [ 234.364191][ T6775] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 234.364213][ T6775] RIP: 0033:0x7fe49699038a [ 234.364235][ T6775] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 234.364256][ T6775] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 234.364282][ T6775] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 234.364301][ T6775] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 234.364319][ T6775] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 234.364335][ T6775] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 234.364352][ T6775] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 234.364378][ T6775] [ 234.364839][ T6775] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 234.771964][ T6775] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 235.076008][ T6780] loop1: detected capacity change from 0 to 32768 [ 235.096003][ T6780] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 235.103600][ T6780] CPU: 0 UID: 0 PID: 6780 Comm: syz.1.202 Not tainted syzkaller #0 PREEMPT(full) [ 235.103634][ T6780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 235.103650][ T6780] Call Trace: [ 235.103660][ T6780] [ 235.103672][ T6780] dump_stack_lvl+0x189/0x250 [ 235.103717][ T6780] ? __pfx_dump_stack_lvl+0x10/0x10 [ 235.103748][ T6780] ? __pfx__printk+0x10/0x10 [ 235.103784][ T6780] ? kernfs_root+0x1c/0x230 [ 235.103816][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.103847][ T6780] ? kernfs_path_from_node+0x250/0x290 [ 235.103874][ T6780] ? kernfs_path_from_node+0x2f/0x290 [ 235.103902][ T6780] sysfs_create_dir_ns+0x259/0x280 [ 235.103929][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.103958][ T6780] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 235.103985][ T6780] ? do_raw_spin_unlock+0x122/0x240 [ 235.104021][ T6780] kobject_add_internal+0x59f/0xb40 [ 235.104051][ T6780] kobject_init_and_add+0x125/0x190 [ 235.104094][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104127][ T6780] ? __pfx_kobject_init_and_add+0x10/0x10 [ 235.104166][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104195][ T6780] ? __raw_spin_lock_init+0x45/0x100 [ 235.104226][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104255][ T6780] ? __init_swait_queue_head+0xa9/0x150 [ 235.104289][ T6780] gfs2_sys_fs_add+0x234/0x450 [ 235.104319][ T6780] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 235.104348][ T6780] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 235.104393][ T6780] gfs2_fill_super+0x13c0/0x20d0 [ 235.104437][ T6780] ? __pfx_gfs2_fill_super+0x10/0x10 [ 235.104469][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104501][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104529][ T6780] ? sb_set_blocksize+0x104/0x180 [ 235.104577][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104606][ T6780] ? setup_bdev_super+0x4c1/0x5b0 [ 235.104644][ T6780] get_tree_bdev_flags+0x40e/0x4d0 [ 235.104678][ T6780] ? __pfx_gfs2_fill_super+0x10/0x10 [ 235.104713][ T6780] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 235.104749][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104781][ T6780] gfs2_get_tree+0x51/0x1e0 [ 235.104815][ T6780] vfs_get_tree+0x92/0x2b0 [ 235.104851][ T6780] do_new_mount+0x2a2/0x9e0 [ 235.104893][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.104921][ T6780] ? ns_capable+0x8a/0xf0 [ 235.104946][ T6780] ? __pfx_do_new_mount+0x10/0x10 [ 235.104981][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105009][ T6780] ? path_mount+0x61c/0xfe0 [ 235.105043][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105077][ T6780] __se_sys_mount+0x317/0x410 [ 235.105118][ T6780] ? __pfx___se_sys_mount+0x10/0x10 [ 235.105154][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105183][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105213][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105241][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105295][ T6780] ? __x64_sys_mount+0x20/0xc0 [ 235.105334][ T6780] do_syscall_64+0xfa/0x3b0 [ 235.105375][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105404][ T6780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 235.105432][ T6780] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.105460][ T6780] ? exc_page_fault+0x9f/0xf0 [ 235.105496][ T6780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 235.105519][ T6780] RIP: 0033:0x7fe49699038a [ 235.105544][ T6780] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 235.105572][ T6780] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 235.105601][ T6780] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 235.105621][ T6780] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 235.105640][ T6780] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 235.105658][ T6780] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 235.105677][ T6780] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 235.105705][ T6780] [ 235.105814][ T6780] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 235.516179][ T6780] gfs2: fsid=__&+[$!: error -17 adding sysfs files 2025/08/22 13:59:18 executed programs: 188 [ 235.821151][ T6784] loop1: detected capacity change from 0 to 32768 [ 235.832487][ T6784] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 235.840099][ T6784] CPU: 1 UID: 0 PID: 6784 Comm: syz.1.203 Not tainted syzkaller #0 PREEMPT(full) [ 235.840130][ T6784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 235.840147][ T6784] Call Trace: [ 235.840157][ T6784] [ 235.840168][ T6784] dump_stack_lvl+0x189/0x250 [ 235.840211][ T6784] ? __pfx_dump_stack_lvl+0x10/0x10 [ 235.840238][ T6784] ? __pfx__printk+0x10/0x10 [ 235.840270][ T6784] ? kernfs_root+0x1c/0x230 [ 235.840310][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840341][ T6784] ? kernfs_path_from_node+0x250/0x290 [ 235.840366][ T6784] ? kernfs_path_from_node+0x2f/0x290 [ 235.840393][ T6784] sysfs_create_dir_ns+0x259/0x280 [ 235.840422][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840450][ T6784] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 235.840475][ T6784] ? do_raw_spin_unlock+0x122/0x240 [ 235.840509][ T6784] kobject_add_internal+0x59f/0xb40 [ 235.840538][ T6784] kobject_init_and_add+0x125/0x190 [ 235.840578][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840609][ T6784] ? __pfx_kobject_init_and_add+0x10/0x10 [ 235.840646][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840674][ T6784] ? __raw_spin_lock_init+0x45/0x100 [ 235.840703][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840729][ T6784] ? __init_swait_queue_head+0xa9/0x150 [ 235.840760][ T6784] gfs2_sys_fs_add+0x234/0x450 [ 235.840787][ T6784] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 235.840816][ T6784] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 235.840861][ T6784] gfs2_fill_super+0x13c0/0x20d0 [ 235.840905][ T6784] ? __pfx_gfs2_fill_super+0x10/0x10 [ 235.840937][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840967][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.840995][ T6784] ? sb_set_blocksize+0x104/0x180 [ 235.841036][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841063][ T6784] ? setup_bdev_super+0x4c1/0x5b0 [ 235.841102][ T6784] get_tree_bdev_flags+0x40e/0x4d0 [ 235.841135][ T6784] ? __pfx_gfs2_fill_super+0x10/0x10 [ 235.841167][ T6784] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 235.841202][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841233][ T6784] gfs2_get_tree+0x51/0x1e0 [ 235.841265][ T6784] vfs_get_tree+0x92/0x2b0 [ 235.841310][ T6784] do_new_mount+0x2a2/0x9e0 [ 235.841353][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841381][ T6784] ? ns_capable+0x8a/0xf0 [ 235.841406][ T6784] ? __pfx_do_new_mount+0x10/0x10 [ 235.841442][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841470][ T6784] ? path_mount+0x61c/0xfe0 [ 235.841503][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841537][ T6784] __se_sys_mount+0x317/0x410 [ 235.841576][ T6784] ? __pfx___se_sys_mount+0x10/0x10 [ 235.841611][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841642][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841669][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841697][ T6784] ? __x64_sys_mount+0x20/0xc0 [ 235.841731][ T6784] do_syscall_64+0xfa/0x3b0 [ 235.841767][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841796][ T6784] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 235.841819][ T6784] ? srso_alias_return_thunk+0x5/0xfbef5 [ 235.841846][ T6784] ? exc_page_fault+0x9f/0xf0 [ 235.841881][ T6784] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 235.841906][ T6784] RIP: 0033:0x7fe49699038a [ 235.841929][ T6784] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 235.841951][ T6784] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 235.841980][ T6784] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 235.841999][ T6784] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 235.842017][ T6784] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 235.842034][ T6784] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 235.842052][ T6784] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 235.842080][ T6784] [ 235.842105][ T6784] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 236.245834][ T6784] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 236.564195][ T6789] loop1: detected capacity change from 0 to 32768 [ 236.577571][ T6789] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 236.585348][ T6789] CPU: 1 UID: 0 PID: 6789 Comm: syz.1.204 Not tainted syzkaller #0 PREEMPT(full) [ 236.585381][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 236.585399][ T6789] Call Trace: [ 236.585409][ T6789] [ 236.585420][ T6789] dump_stack_lvl+0x189/0x250 [ 236.585466][ T6789] ? __pfx_dump_stack_lvl+0x10/0x10 [ 236.585496][ T6789] ? __pfx__printk+0x10/0x10 [ 236.585540][ T6789] ? kernfs_root+0x1c/0x230 [ 236.585572][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.585604][ T6789] ? kernfs_path_from_node+0x250/0x290 [ 236.585631][ T6789] ? kernfs_path_from_node+0x2f/0x290 [ 236.585660][ T6789] sysfs_create_dir_ns+0x259/0x280 [ 236.585687][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.585718][ T6789] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 236.585745][ T6789] ? do_raw_spin_unlock+0x122/0x240 [ 236.585780][ T6789] kobject_add_internal+0x59f/0xb40 [ 236.585811][ T6789] kobject_init_and_add+0x125/0x190 [ 236.585851][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.585883][ T6789] ? __pfx_kobject_init_and_add+0x10/0x10 [ 236.585922][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.585950][ T6789] ? __raw_spin_lock_init+0x45/0x100 [ 236.585982][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586010][ T6789] ? __init_swait_queue_head+0xa9/0x150 [ 236.586045][ T6789] gfs2_sys_fs_add+0x234/0x450 [ 236.586074][ T6789] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 236.586103][ T6789] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 236.586148][ T6789] gfs2_fill_super+0x13c0/0x20d0 [ 236.586192][ T6789] ? __pfx_gfs2_fill_super+0x10/0x10 [ 236.586224][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586256][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586285][ T6789] ? sb_set_blocksize+0x104/0x180 [ 236.586328][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586358][ T6789] ? setup_bdev_super+0x4c1/0x5b0 [ 236.586398][ T6789] get_tree_bdev_flags+0x40e/0x4d0 [ 236.586431][ T6789] ? __pfx_gfs2_fill_super+0x10/0x10 [ 236.586465][ T6789] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 236.586501][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586541][ T6789] gfs2_get_tree+0x51/0x1e0 [ 236.586574][ T6789] vfs_get_tree+0x92/0x2b0 [ 236.586609][ T6789] do_new_mount+0x2a2/0x9e0 [ 236.586647][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586676][ T6789] ? ns_capable+0x8a/0xf0 [ 236.586704][ T6789] ? __pfx_do_new_mount+0x10/0x10 [ 236.586740][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586769][ T6789] ? path_mount+0x61c/0xfe0 [ 236.586803][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586838][ T6789] __se_sys_mount+0x317/0x410 [ 236.586878][ T6789] ? __pfx___se_sys_mount+0x10/0x10 [ 236.586914][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586943][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.586973][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.587000][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.587029][ T6789] ? __x64_sys_mount+0x20/0xc0 [ 236.587066][ T6789] do_syscall_64+0xfa/0x3b0 [ 236.587104][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.587133][ T6789] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 236.587157][ T6789] ? srso_alias_return_thunk+0x5/0xfbef5 [ 236.587184][ T6789] ? exc_page_fault+0x9f/0xf0 [ 236.587219][ T6789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 236.587242][ T6789] RIP: 0033:0x7fe49699038a [ 236.587266][ T6789] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 236.587289][ T6789] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 236.587316][ T6789] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 236.587334][ T6789] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 236.587353][ T6789] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 236.587371][ T6789] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 236.587388][ T6789] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 236.587416][ T6789] [ 236.587445][ T6789] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 236.996091][ T6789] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 237.303060][ T6795] loop1: detected capacity change from 0 to 32768 [ 237.312050][ T6795] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 237.319445][ T6795] CPU: 1 UID: 0 PID: 6795 Comm: syz.1.205 Not tainted syzkaller #0 PREEMPT(full) [ 237.319475][ T6795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 237.319492][ T6795] Call Trace: [ 237.319503][ T6795] [ 237.319513][ T6795] dump_stack_lvl+0x189/0x250 [ 237.319555][ T6795] ? __pfx_dump_stack_lvl+0x10/0x10 [ 237.319591][ T6795] ? __pfx__printk+0x10/0x10 [ 237.319635][ T6795] ? kernfs_root+0x1c/0x230 [ 237.319666][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.319696][ T6795] ? kernfs_path_from_node+0x250/0x290 [ 237.319721][ T6795] ? kernfs_path_from_node+0x2f/0x290 [ 237.319751][ T6795] sysfs_create_dir_ns+0x259/0x280 [ 237.319778][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.319809][ T6795] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 237.319835][ T6795] ? do_raw_spin_unlock+0x122/0x240 [ 237.319869][ T6795] kobject_add_internal+0x59f/0xb40 [ 237.319899][ T6795] kobject_init_and_add+0x125/0x190 [ 237.319938][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.319970][ T6795] ? __pfx_kobject_init_and_add+0x10/0x10 [ 237.320007][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320035][ T6795] ? __raw_spin_lock_init+0x45/0x100 [ 237.320064][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320092][ T6795] ? __init_swait_queue_head+0xa9/0x150 [ 237.320125][ T6795] gfs2_sys_fs_add+0x234/0x450 [ 237.320152][ T6795] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 237.320182][ T6795] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 237.320225][ T6795] gfs2_fill_super+0x13c0/0x20d0 [ 237.320270][ T6795] ? __pfx_gfs2_fill_super+0x10/0x10 [ 237.320301][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320333][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320362][ T6795] ? sb_set_blocksize+0x104/0x180 [ 237.320403][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320431][ T6795] ? setup_bdev_super+0x4c1/0x5b0 [ 237.320469][ T6795] get_tree_bdev_flags+0x40e/0x4d0 [ 237.320503][ T6795] ? __pfx_gfs2_fill_super+0x10/0x10 [ 237.320535][ T6795] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 237.320571][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320612][ T6795] gfs2_get_tree+0x51/0x1e0 [ 237.320646][ T6795] vfs_get_tree+0x92/0x2b0 [ 237.320682][ T6795] do_new_mount+0x2a2/0x9e0 [ 237.320723][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320751][ T6795] ? ns_capable+0x8a/0xf0 [ 237.320775][ T6795] ? __pfx_do_new_mount+0x10/0x10 [ 237.320811][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320839][ T6795] ? path_mount+0x61c/0xfe0 [ 237.320872][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.320907][ T6795] __se_sys_mount+0x317/0x410 [ 237.320948][ T6795] ? __pfx___se_sys_mount+0x10/0x10 [ 237.320984][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321013][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321044][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321072][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321101][ T6795] ? __x64_sys_mount+0x20/0xc0 [ 237.321138][ T6795] do_syscall_64+0xfa/0x3b0 [ 237.321176][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321204][ T6795] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 237.321228][ T6795] ? srso_alias_return_thunk+0x5/0xfbef5 [ 237.321255][ T6795] ? exc_page_fault+0x9f/0xf0 [ 237.321290][ T6795] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 237.321314][ T6795] RIP: 0033:0x7fe49699038a [ 237.321336][ T6795] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 237.321359][ T6795] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 237.321386][ T6795] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 237.321406][ T6795] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 237.321425][ T6795] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 237.321443][ T6795] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 237.321459][ T6795] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 237.321489][ T6795] [ 237.715087][ T6795] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 237.729488][ T6795] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 238.039076][ T6801] loop1: detected capacity change from 0 to 32768 [ 238.058474][ T6801] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 238.066041][ T6801] CPU: 1 UID: 0 PID: 6801 Comm: syz.1.206 Not tainted syzkaller #0 PREEMPT(full) [ 238.066072][ T6801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 238.066089][ T6801] Call Trace: [ 238.066099][ T6801] [ 238.066109][ T6801] dump_stack_lvl+0x189/0x250 [ 238.066151][ T6801] ? __pfx_dump_stack_lvl+0x10/0x10 [ 238.066178][ T6801] ? __pfx__printk+0x10/0x10 [ 238.066210][ T6801] ? kernfs_root+0x1c/0x230 [ 238.066237][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066264][ T6801] ? kernfs_path_from_node+0x250/0x290 [ 238.066287][ T6801] ? kernfs_path_from_node+0x2f/0x290 [ 238.066313][ T6801] sysfs_create_dir_ns+0x259/0x280 [ 238.066337][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066363][ T6801] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 238.066386][ T6801] ? do_raw_spin_unlock+0x122/0x240 [ 238.066417][ T6801] kobject_add_internal+0x59f/0xb40 [ 238.066444][ T6801] kobject_init_and_add+0x125/0x190 [ 238.066481][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066509][ T6801] ? __pfx_kobject_init_and_add+0x10/0x10 [ 238.066542][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066571][ T6801] ? __raw_spin_lock_init+0x45/0x100 [ 238.066597][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066622][ T6801] ? __init_swait_queue_head+0xa9/0x150 [ 238.066652][ T6801] gfs2_sys_fs_add+0x234/0x450 [ 238.066679][ T6801] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 238.066704][ T6801] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 238.066742][ T6801] gfs2_fill_super+0x13c0/0x20d0 [ 238.066781][ T6801] ? __pfx_gfs2_fill_super+0x10/0x10 [ 238.066808][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066835][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066859][ T6801] ? sb_set_blocksize+0x104/0x180 [ 238.066896][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.066921][ T6801] ? setup_bdev_super+0x4c1/0x5b0 [ 238.066955][ T6801] get_tree_bdev_flags+0x40e/0x4d0 [ 238.066984][ T6801] ? __pfx_gfs2_fill_super+0x10/0x10 [ 238.067013][ T6801] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 238.067043][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067072][ T6801] gfs2_get_tree+0x51/0x1e0 [ 238.067102][ T6801] vfs_get_tree+0x92/0x2b0 [ 238.067133][ T6801] do_new_mount+0x2a2/0x9e0 [ 238.067171][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067195][ T6801] ? ns_capable+0x8a/0xf0 [ 238.067217][ T6801] ? __pfx_do_new_mount+0x10/0x10 [ 238.067248][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067273][ T6801] ? path_mount+0x61c/0xfe0 [ 238.067302][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067333][ T6801] __se_sys_mount+0x317/0x410 [ 238.067367][ T6801] ? __pfx___se_sys_mount+0x10/0x10 [ 238.067398][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067425][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067449][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067473][ T6801] ? __x64_sys_mount+0x20/0xc0 [ 238.067506][ T6801] do_syscall_64+0xfa/0x3b0 [ 238.067541][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067579][ T6801] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 238.067600][ T6801] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.067624][ T6801] ? exc_page_fault+0x9f/0xf0 [ 238.067657][ T6801] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 238.067678][ T6801] RIP: 0033:0x7fe49699038a [ 238.067699][ T6801] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 238.067717][ T6801] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 238.067742][ T6801] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 238.067759][ T6801] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 238.067775][ T6801] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 238.067790][ T6801] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 238.067806][ T6801] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 238.067830][ T6801] [ 238.067858][ T6801] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 238.130984][ T31] INFO: task syz-executor:5962 blocked for more than 143 seconds. [ 238.134834][ T6801] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 238.142956][ T31] Not tainted syzkaller #0 [ 238.495435][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 238.504210][ T31] task:syz-executor state:D stack:21960 pid:5962 tgid:5962 ppid:1 task_flags:0x400140 flags:0x00004004 [ 238.516488][ T31] Call Trace: [ 238.519848][ T31] [ 238.523047][ T31] __schedule+0x1798/0x4cc0 [ 238.527584][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.533328][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.538982][ T31] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 238.544538][ T31] ? __pfx___schedule+0x10/0x10 [ 238.549447][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.555188][ T31] ? rcu_is_watching+0x15/0xb0 [ 238.560083][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.566140][ T31] ? rcu_is_watching+0x15/0xb0 [ 238.571042][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.576697][ T31] ? lock_release+0x4b/0x3e0 [ 238.581773][ T31] schedule+0x165/0x360 [ 238.585955][ T31] bit_wait+0x11/0xd0 [ 238.590273][ T31] __wait_on_bit+0xb9/0x310 [ 238.595147][ T31] ? __pfx_bit_wait+0x10/0x10 [ 238.600265][ T31] ? __pfx_bit_wait+0x10/0x10 [ 238.604967][ T31] out_of_line_wait_on_bit+0x123/0x170 [ 238.610986][ T31] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 238.617021][ T31] ? __pfx_wake_bit_function+0x10/0x10 [ 238.623265][ T31] gfs2_glock_wait+0xbd/0x2a0 [ 238.628029][ T31] __gfs2_lookup+0x117/0x270 [ 238.633187][ T31] ? __pfx___gfs2_lookup+0x10/0x10 [ 238.638445][ T31] ? __lookup_slow+0x297/0x3d0 [ 238.643677][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.649347][ T31] ? __raw_spin_lock_init+0x45/0x100 [ 238.655096][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.661303][ T31] ? __init_waitqueue_head+0xa9/0x150 [ 238.667121][ T31] __lookup_slow+0x297/0x3d0 [ 238.672132][ T31] ? __pfx___lookup_slow+0x10/0x10 [ 238.677282][ T6805] loop1: detected capacity change from 0 to 32768 [ 238.677279][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.677318][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.695810][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.701721][ T31] ? down_read+0x1ad/0x2e0 [ 238.706306][ T31] lookup_slow+0x53/0x70 [ 238.711109][ T31] walk_component+0x2d2/0x400 [ 238.715820][ T31] ? path_lookupat+0x156/0x430 [ 238.721052][ T31] path_lookupat+0x163/0x430 [ 238.725688][ T31] filename_lookup+0x212/0x570 [ 238.731016][ T31] ? __pfx_filename_lookup+0x10/0x10 [ 238.731201][ T6805] sysfs: cannot create duplicate filename '/fs/gfs2/__&+[$!' [ 238.736419][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.750157][ T31] ? strncpy_from_user+0x150/0x290 [ 238.755317][ T31] ? getname_flags+0x1e5/0x540 [ 238.760513][ T31] ? __se_sys_getdents64+0x1ee/0x260 [ 238.761766][ T6805] CPU: 1 UID: 0 PID: 6805 Comm: syz.1.207 Not tainted syzkaller #0 PREEMPT(full) [ 238.761798][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 238.761815][ T6805] Call Trace: [ 238.761825][ T6805] [ 238.761835][ T6805] dump_stack_lvl+0x189/0x250 [ 238.761875][ T6805] ? __pfx_dump_stack_lvl+0x10/0x10 [ 238.761904][ T6805] ? __pfx__printk+0x10/0x10 [ 238.761936][ T6805] ? kernfs_root+0x1c/0x230 [ 238.761968][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.761998][ T6805] ? kernfs_path_from_node+0x250/0x290 [ 238.762023][ T6805] ? kernfs_path_from_node+0x2f/0x290 [ 238.762052][ T6805] sysfs_create_dir_ns+0x259/0x280 [ 238.762078][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762106][ T6805] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 238.762132][ T6805] ? do_raw_spin_unlock+0x122/0x240 [ 238.762167][ T6805] kobject_add_internal+0x59f/0xb40 [ 238.762196][ T6805] kobject_init_and_add+0x125/0x190 [ 238.762232][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762263][ T6805] ? __pfx_kobject_init_and_add+0x10/0x10 [ 238.762307][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762334][ T6805] ? __raw_spin_lock_init+0x45/0x100 [ 238.762362][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762389][ T6805] ? __init_swait_queue_head+0xa9/0x150 [ 238.762422][ T6805] gfs2_sys_fs_add+0x234/0x450 [ 238.762450][ T6805] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 238.762479][ T6805] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 238.762520][ T6805] gfs2_fill_super+0x13c0/0x20d0 [ 238.762562][ T6805] ? __pfx_gfs2_fill_super+0x10/0x10 [ 238.762592][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762622][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762649][ T6805] ? sb_set_blocksize+0x104/0x180 [ 238.762687][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762715][ T6805] ? setup_bdev_super+0x4c1/0x5b0 [ 238.762749][ T6805] get_tree_bdev_flags+0x40e/0x4d0 [ 238.762783][ T6805] ? __pfx_gfs2_fill_super+0x10/0x10 [ 238.762814][ T6805] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 238.762848][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.762880][ T6805] gfs2_get_tree+0x51/0x1e0 [ 238.762913][ T6805] vfs_get_tree+0x92/0x2b0 [ 238.762948][ T6805] do_new_mount+0x2a2/0x9e0 [ 238.762987][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763014][ T6805] ? ns_capable+0x8a/0xf0 [ 238.763038][ T6805] ? __pfx_do_new_mount+0x10/0x10 [ 238.763072][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763099][ T6805] ? path_mount+0x61c/0xfe0 [ 238.763132][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763164][ T6805] __se_sys_mount+0x317/0x410 [ 238.763204][ T6805] ? __pfx___se_sys_mount+0x10/0x10 [ 238.763238][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763266][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763301][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763328][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763356][ T6805] ? __x64_sys_mount+0x20/0xc0 [ 238.763392][ T6805] do_syscall_64+0xfa/0x3b0 [ 238.763429][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763458][ T6805] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 238.763481][ T6805] ? srso_alias_return_thunk+0x5/0xfbef5 [ 238.763508][ T6805] ? exc_page_fault+0x9f/0xf0 [ 238.763542][ T6805] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 238.763567][ T6805] RIP: 0033:0x7fe49699038a [ 238.763588][ T6805] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 238.763612][ T6805] RSP: 002b:00007fff4c8fa278 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 238.763640][ T6805] RAX: ffffffffffffffda RBX: 00007fff4c8fa300 RCX: 00007fe49699038a [ 238.763660][ T6805] RDX: 0000200000000000 RSI: 0000200000000100 RDI: 00007fff4c8fa2c0 [ 238.763679][ T6805] RBP: 0000200000000000 R08: 00007fff4c8fa300 R09: 0000000000008c1b [ 238.763697][ T6805] R10: 0000000000008c1b R11: 0000000000000246 R12: 0000200000000100 [ 238.763714][ T6805] R13: 00007fff4c8fa2c0 R14: 000000000001272b R15: 0000200000000300 [ 238.763741][ T6805] [ 238.763773][ T6805] kobject: kobject_add_internal failed for __&+[$! with -EEXIST, don't try to register things with the same name in the same directory. [ 238.765836][ T31] user_path_at+0x3a/0x60 [ 238.777311][ T6805] gfs2: fsid=__&+[$!: error -17 adding sysfs files [ 238.791434][ T31] __x64_sys_umount+0xee/0x160 [ 239.196187][ T31] ? __pfx___x64_sys_umount+0x10/0x10 [ 239.202140][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.208106][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.213935][ T31] ? rcu_is_watching+0x15/0xb0 [ 239.218764][ T31] do_syscall_64+0xfa/0x3b0 [ 239.223543][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.229335][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.235706][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.241493][ T31] ? exc_page_fault+0x9f/0xf0 [ 239.246212][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.252655][ T31] RIP: 0033:0x7f9ecc58ff17 [ 239.257124][ T31] RSP: 002b:00007ffefe47ca88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 239.266333][ T31] RAX: ffffffffffffffda RBX: 00007f9ecc611c05 RCX: 00007f9ecc58ff17 [ 239.274484][ T31] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffefe47cb40 [ 239.283567][ T31] RBP: 00007ffefe47cb40 R08: 0000000000000000 R09: 0000000000000000 [ 239.291794][ T31] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffefe47dc30 [ 239.299915][ T31] R13: 00007f9ecc611c05 R14: 00005555800464a8 R15: 00007ffefe47fdf0 [ 239.308175][ T31] [ 239.312131][ T31] INFO: lockdep is turned off. [ 239.316993][ T31] NMI backtrace for cpu 0 [ 239.317023][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 239.317052][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 239.317069][ T31] Call Trace: [ 239.317080][ T31] [ 239.317090][ T31] dump_stack_lvl+0x189/0x250 [ 239.317144][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 239.317172][ T31] ? __pfx__printk+0x10/0x10 [ 239.317217][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 239.317252][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 239.317279][ T31] ? __pfx__printk+0x10/0x10 [ 239.317308][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.317341][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.317366][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 239.317409][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 239.317437][ T31] watchdog+0xf93/0xfe0 [ 239.317482][ T31] ? watchdog+0x1de/0xfe0 [ 239.317513][ T31] kthread+0x711/0x8a0 [ 239.317550][ T31] ? __pfx_watchdog+0x10/0x10 [ 239.317579][ T31] ? __pfx_kthread+0x10/0x10 [ 239.317604][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.317641][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 239.317678][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.317703][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 239.317739][ T31] ? __pfx_kthread+0x10/0x10 [ 239.317765][ T31] ret_from_fork+0x3fc/0x770 [ 239.317794][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 239.317819][ T31] ? __switch_to_asm+0x39/0x70 [ 239.317857][ T31] ? __switch_to_asm+0x33/0x70 [ 239.317885][ T31] ? __pfx_kthread+0x10/0x10 [ 239.317912][ T31] ret_from_fork_asm+0x1a/0x30 [ 239.317949][ T31] [ 239.317968][ T31] Sending NMI from CPU 0 to CPUs 1: [ 239.361194][ T6809] loop1: detected capacity change from 0 to 32768 [ 239.363510][ C1] NMI backtrace for cpu 1 [ 239.363539][ C1] CPU: 1 UID: 0 PID: 6809 Comm: syz.1.208 Not tainted syzkaller #0 PREEMPT(full) [ 239.363566][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 239.363582][ C1] RIP: 0010:io_serial_in+0x77/0xc0 [ 239.363618][ C1] Code: e8 3e 8d 70 fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 6f f6 d3 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f e9 95 22 c1 fb cc 44 89 f9 80 e1 07 [ 239.363639][ C1] RSP: 0018:ffffc900047469f0 EFLAGS: 00000002 [ 239.363660][ C1] RAX: 1ffffffff33bde00 RBX: 00000000000003fd RCX: 0000000000000000 [ 239.363676][ C1] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020 [ 239.363691][ C1] RBP: ffffffff99def670 R08: ffff888142bc0237 R09: 1ffff11028578046 [ 239.363709][ C1] R10: dffffc0000000000 R11: ffffffff854f1df0 R12: dffffc0000000000 [ 239.363728][ C1] R13: 0000000000000000 R14: ffffffff99def3e0 R15: 0000000000000000 [ 239.363746][ C1] FS: 00005555839fb500(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000 [ 239.363766][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 239.363781][ C1] CR2: 00007fe48e9ff000 CR3: 00000000767ff000 CR4: 0000000000350ef0 [ 239.363800][ C1] Call Trace: [ 239.363809][ C1] [ 239.363820][ C1] wait_for_lsr+0x1a1/0x2f0 [ 239.363852][ C1] serial8250_console_write+0x134c/0x1ba0 [ 239.363879][ C1] ? format_decode+0xd9/0xe30 [ 239.363909][ C1] ? __pfx_serial8250_console_write+0x10/0x10 [ 239.363933][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.363962][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.363985][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364010][ C1] ? lock_acquire+0x5f/0x360 [ 239.364045][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364073][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364097][ C1] ? do_raw_spin_unlock+0x122/0x240 [ 239.364125][ C1] ? console_flush_all+0x13a/0xc40 [ 239.364150][ C1] ? console_flush_all+0x13a/0xc40 [ 239.364177][ C1] console_flush_all+0x728/0xc40 [ 239.364205][ C1] ? console_flush_all+0x13a/0xc40 [ 239.364234][ C1] ? __pfx_console_flush_all+0x10/0x10 [ 239.364260][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364293][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364318][ C1] ? is_printk_cpu_sync_owner+0x32/0x40 [ 239.364353][ C1] console_unlock+0xc4/0x270 [ 239.364376][ C1] ? __pfx_console_unlock+0x10/0x10 [ 239.364398][ C1] ? vprintk_emit+0x444/0x7a0 [ 239.364420][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364446][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364471][ C1] ? vprintk_emit+0x444/0x7a0 [ 239.364493][ C1] ? vprintk_emit+0x444/0x7a0 [ 239.364516][ C1] vprintk_emit+0x5b7/0x7a0 [ 239.364538][ C1] ? vprintk_emit+0x444/0x7a0 [ 239.364562][ C1] ? __pfx_vprintk_emit+0x10/0x10 [ 239.364586][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364612][ C1] ? up_write+0x1c4/0x420 [ 239.364635][ C1] ? kernfs_activate_one+0x238/0x370 [ 239.364667][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364696][ C1] _printk+0xcf/0x120 [ 239.364732][ C1] ? __pfx__printk+0x10/0x10 [ 239.364760][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364786][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364813][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.364838][ C1] ? do_raw_spin_unlock+0x122/0x240 [ 239.364867][ C1] set_capacity_and_notify+0x208/0x2d0 [ 239.364893][ C1] ? __pfx_set_capacity_and_notify+0x10/0x10 [ 239.364914][ C1] ? __pfx_internal_create_group+0x10/0x10 [ 239.364943][ C1] loop_set_size+0x44/0xb0 [ 239.364975][ C1] loop_configure+0xb28/0xf90 [ 239.365010][ C1] ? __pfx_loop_configure+0x10/0x10 [ 239.365036][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365072][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 239.365100][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365129][ C1] lo_ioctl+0x7cc/0x1d00 [ 239.365155][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365180][ C1] ? kasan_save_track+0x4f/0x80 [ 239.365208][ C1] ? kasan_save_track+0x3e/0x80 [ 239.365234][ C1] ? __kasan_slab_free+0x5b/0x80 [ 239.365262][ C1] ? kfree+0x18e/0x440 [ 239.365318][ C1] ? security_file_open+0xb1/0x270 [ 239.365350][ C1] ? do_dentry_open+0x384/0x13f0 [ 239.365372][ C1] ? vfs_open+0x3b/0x340 [ 239.365391][ C1] ? path_openat+0x2ee5/0x3830 [ 239.365418][ C1] ? do_filp_open+0x1fa/0x410 [ 239.365442][ C1] ? do_sys_openat2+0x121/0x1c0 [ 239.365464][ C1] ? __x64_sys_openat+0x138/0x170 [ 239.365486][ C1] ? do_syscall_64+0xfa/0x3b0 [ 239.365523][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.365545][ C1] ? __pfx_lo_ioctl+0x10/0x10 [ 239.365571][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365601][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365627][ C1] ? __mutex_trylock_common+0x153/0x260 [ 239.365653][ C1] ? __pfx___mutex_trylock_common+0x10/0x10 [ 239.365678][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365703][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.365727][ C1] ? unwind_next_frame+0xa5/0x2390 [ 239.365751][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365779][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365804][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.365826][ C1] ? unwind_next_frame+0xa5/0x2390 [ 239.365849][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365875][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365900][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.365923][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.365948][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.365970][ C1] ? unwind_next_frame+0xa5/0x2390 [ 239.365993][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366020][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366044][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.366066][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366091][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.366113][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366138][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.366158][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366182][ C1] ? lock_release+0x4b/0x3e0 [ 239.366213][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366238][ C1] ? lock_release+0x4b/0x3e0 [ 239.366271][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366302][ C1] ? is_bpf_text_address+0x292/0x2b0 [ 239.366340][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366365][ C1] ? is_bpf_text_address+0x26/0x2b0 [ 239.366398][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366423][ C1] ? kernel_text_address+0xa5/0xe0 [ 239.366458][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366483][ C1] ? __kernel_text_address+0xd/0x40 [ 239.366512][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366536][ C1] ? unwind_get_return_address+0x4d/0x90 [ 239.366561][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 239.366587][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366612][ C1] ? arch_stack_walk+0xfc/0x150 [ 239.366646][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366671][ C1] ? stack_trace_save+0x9c/0xe0 [ 239.366696][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 239.366723][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366748][ C1] ? stack_depot_save_flags+0x40/0x860 [ 239.366779][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366804][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366832][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.366857][ C1] ? kasan_save_track+0x4f/0x80 [ 239.366883][ C1] ? kasan_save_track+0x3e/0x80 [ 239.366909][ C1] ? kasan_save_free_info+0x46/0x50 [ 239.366932][ C1] ? __kasan_slab_free+0x5b/0x80 [ 239.366959][ C1] ? kfree+0x18e/0x440 [ 239.366985][ C1] ? tomoyo_path_number_perm+0x47a/0x5a0 [ 239.367015][ C1] ? security_file_ioctl+0xcb/0x2d0 [ 239.367043][ C1] ? __se_sys_ioctl+0x47/0x170 [ 239.367067][ C1] ? do_syscall_64+0xfa/0x3b0 [ 239.367098][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.367132][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367157][ C1] ? __asan_memset+0x22/0x50 [ 239.367181][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367206][ C1] ? blk_get_meta_cap+0x140/0x710 [ 239.367252][ C1] ? __pfx_blkdev_common_ioctl+0x10/0x10 [ 239.367301][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367325][ C1] ? do_vfs_ioctl+0xbe8/0x1430 [ 239.367352][ C1] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 239.367385][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.367416][ C1] ? __pfx_lo_ioctl+0x10/0x10 [ 239.367442][ C1] blkdev_ioctl+0x5a8/0x6d0 [ 239.367477][ C1] ? __pfx_blkdev_ioctl+0x10/0x10 [ 239.367511][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367536][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367562][ C1] ? __pfx_blkdev_ioctl+0x10/0x10 [ 239.367594][ C1] __se_sys_ioctl+0xfc/0x170 [ 239.367622][ C1] do_syscall_64+0xfa/0x3b0 [ 239.367656][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367681][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.367703][ C1] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.367728][ C1] ? exc_page_fault+0x9f/0xf0 [ 239.367759][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.367781][ C1] RIP: 0033:0x7fe49698e7eb [ 239.367802][ C1] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 239.367821][ C1] RSP: 002b:00007fff4c8fa1d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 239.367843][ C1] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe49698e7eb [ 239.367859][ C1] RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004 [ 239.367874][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000012725 [ 239.367888][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 239.367902][ C1] R13: 00007fff4c8fa300 R14: 00007fff4c8fa2c0 R15: 00007fe48da00000 [ 239.367927][ C1] [ 239.369398][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 239.369422][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 239.369451][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 239.369467][ T31] Call Trace: [ 239.369478][ T31] [ 239.369489][ T31] dump_stack_lvl+0x99/0x250 [ 239.369534][ T31] ? __asan_memcpy+0x40/0x70 [ 239.369566][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 239.369599][ T31] ? __pfx__printk+0x10/0x10 [ 239.369639][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.369671][ T31] vpanic+0x281/0x750 [ 239.369701][ T31] ? __pfx_vpanic+0x10/0x10 [ 239.369729][ T31] ? preempt_schedule+0xae/0xc0 [ 239.369763][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.369792][ T31] ? preempt_schedule_common+0x83/0xd0 [ 239.369828][ T31] panic+0xb9/0xc0 [ 239.369855][ T31] ? __pfx_panic+0x10/0x10 [ 239.369883][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.369911][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 239.369951][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.369980][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 239.370013][ T31] watchdog+0xfd2/0xfe0 [ 239.370052][ T31] ? watchdog+0x1de/0xfe0 [ 239.370087][ T31] kthread+0x711/0x8a0 [ 239.370122][ T31] ? __pfx_watchdog+0x10/0x10 [ 239.370155][ T31] ? __pfx_kthread+0x10/0x10 [ 239.370184][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.370214][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 239.370245][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 239.370272][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 239.370306][ T31] ? __pfx_kthread+0x10/0x10 [ 239.370336][ T31] ret_from_fork+0x3fc/0x770 [ 239.370366][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 239.370394][ T31] ? __switch_to_asm+0x39/0x70 [ 239.370427][ T31] ? __switch_to_asm+0x33/0x70 [ 239.370458][ T31] ? __pfx_kthread+0x10/0x10 [ 239.370488][ T31] ret_from_fork_asm+0x1a/0x30 [ 239.370535][ T31] [ 239.371739][ T31] Kernel Offset: disabled