gfs2_fill_super+0xdec/0x19ec [ 68.573822][ T5187] get_tree_bdev+0x358/0x544 [ 68.574472][ T5187] gfs2_get_tree+0x54/0x1b4 [ 68.575148][ T5187] vfs_get_tree+0x90/0x274 [ 68.575796][ T5187] do_new_mount+0x228/0x810 [ 68.576500][ T5187] path_mount+0x5b4/0xe78 [ 68.577235][ T5187] __arm64_sys_mount+0x49c/0x584 [ 68.578052][ T5187] invoke_syscall+0x98/0x2bc [ 68.578514][ T4383] Bluetooth: hci5: command 0x0409 tx timeout [ 68.578851][ T5187] el0_svc_common+0x138/0x258 [ 68.580550][ T5187] do_el0_svc+0x58/0x13c [ 68.581203][ T5187] el0_svc+0x58/0x138 [ 68.581849][ T5187] el0t_64_sync_handler+0x84/0xf0 [ 68.582579][ T5187] el0t_64_sync+0x18c/0x190 [ 68.583235][ T5187] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.585030][ T5187] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.601221][ T5119] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.602354][ T5119] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 68.606275][ T5119] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.689745][ T5185] loop2: detected capacity change from 0 to 32768 [ 68.698371][ T5185] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.699507][ T5185] CPU: 0 PID: 5185 Comm: syz.2.274 Not tainted syzkaller #0 [ 68.700687][ T5185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.702258][ T5185] Call trace: [ 68.702724][ T5185] dump_backtrace+0x1c8/0x1f4 [ 68.703417][ T5185] show_stack+0x2c/0x3c [ 68.704033][ T5185] __dump_stack+0x30/0x40 [ 68.704708][ T5185] dump_stack_lvl+0xf8/0x160 [ 68.705367][ T5185] dump_stack+0x1c/0x5c [ 68.705989][ T5185] sysfs_create_dir_ns+0x22c/0x24c [ 68.706763][ T5185] kobject_add_internal+0x5a8/0xb30 [ 68.707505][ T5185] kobject_init_and_add+0x118/0x17c [ 68.708275][ T5185] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.708935][ T5185] gfs2_fill_super+0xdec/0x19ec [ 68.709689][ T5185] get_tree_bdev+0x358/0x544 [ 68.710351][ T5185] gfs2_get_tree+0x54/0x1b4 [ 68.711010][ T5185] vfs_get_tree+0x90/0x274 [ 68.711596][ T5185] do_new_mount+0x228/0x810 [ 68.712290][ T5185] path_mount+0x5b4/0xe78 [ 68.712966][ T5185] __arm64_sys_mount+0x49c/0x584 [ 68.713676][ T5185] invoke_syscall+0x98/0x2bc [ 68.714341][ T5185] el0_svc_common+0x138/0x258 [ 68.715020][ T5185] do_el0_svc+0x58/0x13c [ 68.715654][ T5185] el0_svc+0x58/0x138 [ 68.716248][ T5185] el0t_64_sync_handler+0x84/0xf0 [ 68.716946][ T5185] el0t_64_sync+0x18c/0x190 [ 68.717685][ T5185] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.719622][ T5185] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.868875][ T5193] loop0: detected capacity change from 0 to 32768 [ 68.926173][ T5195] loop1: detected capacity change from 0 to 32768 [ 68.926251][ T5193] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.928345][ T5193] CPU: 0 PID: 5193 Comm: syz.0.277 Not tainted syzkaller #0 [ 68.929424][ T5193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.930859][ T5193] Call trace: [ 68.931342][ T5193] dump_backtrace+0x1c8/0x1f4 [ 68.932022][ T5193] show_stack+0x2c/0x3c [ 68.932627][ T5193] __dump_stack+0x30/0x40 [ 68.933309][ T5193] dump_stack_lvl+0xf8/0x160 [ 68.934008][ T5193] dump_stack+0x1c/0x5c [ 68.934619][ T5193] sysfs_create_dir_ns+0x22c/0x24c [ 68.935375][ T5193] kobject_add_internal+0x5a8/0xb30 [ 68.936135][ T5193] kobject_init_and_add+0x118/0x17c [ 68.936891][ T5193] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.937605][ T5193] gfs2_fill_super+0xdec/0x19ec [ 68.938343][ T5193] get_tree_bdev+0x358/0x544 [ 68.938998][ T5193] gfs2_get_tree+0x54/0x1b4 [ 68.939685][ T5193] vfs_get_tree+0x90/0x274 [ 68.940315][ T5193] do_new_mount+0x228/0x810 [ 68.941029][ T5193] path_mount+0x5b4/0xe78 [ 68.941646][ T5193] __arm64_sys_mount+0x49c/0x584 [ 68.942327][ T5193] invoke_syscall+0x98/0x2bc [ 68.942969][ T5193] el0_svc_common+0x138/0x258 [ 68.943620][ T5193] do_el0_svc+0x58/0x13c [ 68.944232][ T5193] el0_svc+0x58/0x138 [ 68.944840][ T5193] el0t_64_sync_handler+0x84/0xf0 [ 68.945583][ T5193] el0t_64_sync+0x18c/0x190 [ 68.946337][ T5193] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.948040][ T5193] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.953213][ T5195] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 68.954371][ T5195] CPU: 0 PID: 5195 Comm: syz.1.279 Not tainted syzkaller #0 [ 68.955437][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 68.956857][ T5195] Call trace: [ 68.957335][ T5195] dump_backtrace+0x1c8/0x1f4 [ 68.957951][ T5195] show_stack+0x2c/0x3c [ 68.958531][ T5195] __dump_stack+0x30/0x40 [ 68.959171][ T5195] dump_stack_lvl+0xf8/0x160 [ 68.959859][ T5195] dump_stack+0x1c/0x5c [ 68.960435][ T5195] sysfs_create_dir_ns+0x22c/0x24c [ 68.961205][ T5195] kobject_add_internal+0x5a8/0xb30 [ 68.961966][ T5195] kobject_init_and_add+0x118/0x17c [ 68.962681][ T5195] gfs2_sys_fs_add+0x1dc/0x3d8 [ 68.963403][ T5195] gfs2_fill_super+0xdec/0x19ec [ 68.964063][ T5195] get_tree_bdev+0x358/0x544 [ 68.964711][ T5195] gfs2_get_tree+0x54/0x1b4 [ 68.965356][ T5195] vfs_get_tree+0x90/0x274 [ 68.966053][ T5195] do_new_mount+0x228/0x810 [ 68.966751][ T5195] path_mount+0x5b4/0xe78 [ 68.967449][ T5195] __arm64_sys_mount+0x49c/0x584 [ 68.968201][ T5195] invoke_syscall+0x98/0x2bc [ 68.968889][ T5195] el0_svc_common+0x138/0x258 [ 68.969624][ T5195] do_el0_svc+0x58/0x13c [ 68.970239][ T5195] el0_svc+0x58/0x138 [ 68.970808][ T5195] el0t_64_sync_handler+0x84/0xf0 [ 68.971520][ T5195] el0t_64_sync+0x18c/0x190 [ 68.972283][ T5195] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 68.974052][ T5195] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 68.981286][ T5119] device hsr_slave_0 entered promiscuous mode [ 69.048144][ T5197] loop4: detected capacity change from 0 to 32768 [ 69.049971][ T5197] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.050474][ T5119] device hsr_slave_1 entered promiscuous mode [ 69.051160][ T5197] CPU: 1 PID: 5197 Comm: syz.4.280 Not tainted syzkaller #0 [ 69.053113][ T5197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.054508][ T5197] Call trace: [ 69.054977][ T5197] dump_backtrace+0x1c8/0x1f4 [ 69.055614][ T5197] show_stack+0x2c/0x3c [ 69.056268][ T5197] __dump_stack+0x30/0x40 [ 69.056846][ T5197] dump_stack_lvl+0xf8/0x160 [ 69.057486][ T5197] dump_stack+0x1c/0x5c [ 69.058046][ T5197] sysfs_create_dir_ns+0x22c/0x24c [ 69.058773][ T5197] kobject_add_internal+0x5a8/0xb30 [ 69.059462][ T5197] kobject_init_and_add+0x118/0x17c [ 69.060161][ T5197] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.060862][ T5197] gfs2_fill_super+0xdec/0x19ec [ 69.061564][ T5197] get_tree_bdev+0x358/0x544 [ 69.062221][ T5197] gfs2_get_tree+0x54/0x1b4 [ 69.062842][ T5197] vfs_get_tree+0x90/0x274 [ 69.063442][ T5197] do_new_mount+0x228/0x810 [ 69.064193][ T5197] path_mount+0x5b4/0xe78 [ 69.064911][ T5197] __arm64_sys_mount+0x49c/0x584 [ 69.065680][ T5197] invoke_syscall+0x98/0x2bc [ 69.066357][ T5197] el0_svc_common+0x138/0x258 [ 69.067088][ T5197] do_el0_svc+0x58/0x13c [ 69.067676][ T5197] el0_svc+0x58/0x138 [ 69.068250][ T5197] el0t_64_sync_handler+0x84/0xf0 [ 69.068948][ T5197] el0t_64_sync+0x18c/0x190 [ 69.069624][ T5197] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.071596][ T5197] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.149174][ T5077] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.160256][ T5133] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.220644][ T5199] loop0: detected capacity change from 0 to 32768 [ 69.305308][ T5199] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.306436][ T5199] CPU: 1 PID: 5199 Comm: syz.0.281 Not tainted syzkaller #0 [ 69.307486][ T5199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.308915][ T5199] Call trace: [ 69.309407][ T5199] dump_backtrace+0x1c8/0x1f4 [ 69.310083][ T5199] show_stack+0x2c/0x3c [ 69.310650][ T5199] __dump_stack+0x30/0x40 [ 69.311284][ T5199] dump_stack_lvl+0xf8/0x160 [ 69.311978][ T5199] dump_stack+0x1c/0x5c [ 69.312584][ T5199] sysfs_create_dir_ns+0x22c/0x24c [ 69.313349][ T5199] kobject_add_internal+0x5a8/0xb30 [ 69.314123][ T5199] kobject_init_and_add+0x118/0x17c [ 69.314877][ T5199] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.315581][ T5199] gfs2_fill_super+0xdec/0x19ec [ 69.316274][ T5199] get_tree_bdev+0x358/0x544 [ 69.316911][ T5199] gfs2_get_tree+0x54/0x1b4 [ 69.317536][ T5199] vfs_get_tree+0x90/0x274 [ 69.318189][ T5199] do_new_mount+0x228/0x810 [ 69.318891][ T5199] path_mount+0x5b4/0xe78 [ 69.319505][ T5199] __arm64_sys_mount+0x49c/0x584 [ 69.320169][ T5199] invoke_syscall+0x98/0x2bc [ 69.320824][ T5199] el0_svc_common+0x138/0x258 [ 69.321488][ T5199] do_el0_svc+0x58/0x13c [ 69.322089][ T5199] el0_svc+0x58/0x138 [ 69.322639][ T5199] el0t_64_sync_handler+0x84/0xf0 [ 69.323338][ T5199] el0t_64_sync+0x18c/0x190 [ 69.324052][ T5199] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.325814][ T5199] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.327728][ T5201] loop2: detected capacity change from 0 to 32768 [ 69.329420][ T5205] loop1: detected capacity change from 0 to 32768 [ 69.363566][ T5201] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.364707][ T5201] CPU: 0 PID: 5201 Comm: syz.2.282 Not tainted syzkaller #0 [ 69.365846][ T5201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.367269][ T5201] Call trace: [ 69.367761][ T5201] dump_backtrace+0x1c8/0x1f4 [ 69.368433][ T5201] show_stack+0x2c/0x3c [ 69.368996][ T5201] __dump_stack+0x30/0x40 [ 69.369629][ T5201] dump_stack_lvl+0xf8/0x160 [ 69.370316][ T5201] dump_stack+0x1c/0x5c [ 69.370958][ T5201] sysfs_create_dir_ns+0x22c/0x24c [ 69.371685][ T5201] kobject_add_internal+0x5a8/0xb30 [ 69.372416][ T5201] kobject_init_and_add+0x118/0x17c [ 69.373146][ T5201] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.373838][ T5201] gfs2_fill_super+0xdec/0x19ec [ 69.374600][ T5201] get_tree_bdev+0x358/0x544 [ 69.375259][ T5201] gfs2_get_tree+0x54/0x1b4 [ 69.375898][ T5201] vfs_get_tree+0x90/0x274 [ 69.376567][ T5201] do_new_mount+0x228/0x810 [ 69.377179][ T5201] path_mount+0x5b4/0xe78 [ 69.377764][ T5201] __arm64_sys_mount+0x49c/0x584 [ 69.378504][ T5201] invoke_syscall+0x98/0x2bc [ 69.379231][ T5201] el0_svc_common+0x138/0x258 [ 69.379903][ T5201] do_el0_svc+0x58/0x13c [ 69.380548][ T5201] el0_svc+0x58/0x138 [ 69.381132][ T5201] el0t_64_sync_handler+0x84/0xf0 [ 69.381800][ T5201] el0t_64_sync+0x18c/0x190 [ 69.382546][ T5201] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.384331][ T5201] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.385794][ T5205] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.386925][ T5205] CPU: 0 PID: 5205 Comm: syz.1.283 Not tainted syzkaller #0 [ 69.388050][ T5205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.389566][ T5205] Call trace: [ 69.390074][ T5205] dump_backtrace+0x1c8/0x1f4 [ 69.390816][ T5205] show_stack+0x2c/0x3c [ 69.391460][ T5205] __dump_stack+0x30/0x40 [ 69.392136][ T5205] dump_stack_lvl+0xf8/0x160 [ 69.392777][ T5205] dump_stack+0x1c/0x5c [ 69.393353][ T5205] sysfs_create_dir_ns+0x22c/0x24c [ 69.394047][ T5205] kobject_add_internal+0x5a8/0xb30 [ 69.394799][ T5205] kobject_init_and_add+0x118/0x17c [ 69.395558][ T5205] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.396282][ T5205] gfs2_fill_super+0xdec/0x19ec [ 69.397039][ T5205] get_tree_bdev+0x358/0x544 [ 69.397725][ T5205] gfs2_get_tree+0x54/0x1b4 [ 69.398424][ T5205] vfs_get_tree+0x90/0x274 [ 69.399070][ T5205] do_new_mount+0x228/0x810 [ 69.399700][ T5205] path_mount+0x5b4/0xe78 [ 69.400316][ T5205] __arm64_sys_mount+0x49c/0x584 [ 69.400994][ T5205] invoke_syscall+0x98/0x2bc [ 69.401685][ T5205] el0_svc_common+0x138/0x258 [ 69.402288][ T5205] do_el0_svc+0x58/0x13c [ 69.402866][ T5205] el0_svc+0x58/0x138 [ 69.403409][ T5205] el0t_64_sync_handler+0x84/0xf0 [ 69.404135][ T5205] el0t_64_sync+0x18c/0x190 [ 69.404844][ T5205] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.406739][ T5205] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.430730][ T5204] loop4: detected capacity change from 0 to 32768 [ 69.432519][ T5204] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.433696][ T5204] CPU: 1 PID: 5204 Comm: syz.4.284 Not tainted syzkaller #0 [ 69.434848][ T5204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.436376][ T5204] Call trace: [ 69.436887][ T5204] dump_backtrace+0x1c8/0x1f4 [ 69.437587][ T5204] show_stack+0x2c/0x3c [ 69.438169][ T5204] __dump_stack+0x30/0x40 [ 69.438799][ T5204] dump_stack_lvl+0xf8/0x160 [ 69.439468][ T5204] dump_stack+0x1c/0x5c [ 69.440008][ T5204] sysfs_create_dir_ns+0x22c/0x24c [ 69.440767][ T5204] kobject_add_internal+0x5a8/0xb30 [ 69.441490][ T5204] kobject_init_and_add+0x118/0x17c [ 69.442222][ T5204] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.442868][ T5204] gfs2_fill_super+0xdec/0x19ec [ 69.443530][ T5204] get_tree_bdev+0x358/0x544 [ 69.444165][ T5204] gfs2_get_tree+0x54/0x1b4 [ 69.444842][ T5204] vfs_get_tree+0x90/0x274 [ 69.445451][ T5204] do_new_mount+0x228/0x810 [ 69.446048][ T5204] path_mount+0x5b4/0xe78 [ 69.446687][ T5204] __arm64_sys_mount+0x49c/0x584 [ 69.447436][ T5204] invoke_syscall+0x98/0x2bc [ 69.448086][ T5204] el0_svc_common+0x138/0x258 [ 69.448721][ T5204] do_el0_svc+0x58/0x13c [ 69.449309][ T5204] el0_svc+0x58/0x138 [ 69.449865][ T5204] el0t_64_sync_handler+0x84/0xf0 [ 69.450549][ T5204] el0t_64_sync+0x18c/0x190 [ 69.452161][ T5204] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.453903][ T5204] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.568194][ T5209] loop2: detected capacity change from 0 to 32768 [ 69.571331][ T5209] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.572462][ T5209] CPU: 0 PID: 5209 Comm: syz.2.286 Not tainted syzkaller #0 [ 69.573622][ T5209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.575120][ T5209] Call trace: [ 69.575559][ T5209] dump_backtrace+0x1c8/0x1f4 [ 69.576238][ T5209] show_stack+0x2c/0x3c [ 69.576832][ T5209] __dump_stack+0x30/0x40 [ 69.577435][ T5209] dump_stack_lvl+0xf8/0x160 [ 69.578125][ T5209] dump_stack+0x1c/0x5c [ 69.578734][ T5209] sysfs_create_dir_ns+0x22c/0x24c [ 69.579533][ T5209] kobject_add_internal+0x5a8/0xb30 [ 69.580284][ T5209] kobject_init_and_add+0x118/0x17c [ 69.581111][ T5209] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.581882][ T5209] gfs2_fill_super+0xdec/0x19ec [ 69.582613][ T5209] get_tree_bdev+0x358/0x544 [ 69.583331][ T5209] gfs2_get_tree+0x54/0x1b4 [ 69.584113][ T5209] vfs_get_tree+0x90/0x274 [ 69.584794][ T5209] do_new_mount+0x228/0x810 [ 69.585410][ T5209] path_mount+0x5b4/0xe78 [ 69.586051][ T5209] __arm64_sys_mount+0x49c/0x584 [ 69.586752][ T5209] invoke_syscall+0x98/0x2bc [ 69.587449][ T5209] el0_svc_common+0x138/0x258 [ 69.588108][ T5209] do_el0_svc+0x58/0x13c [ 69.588747][ T5209] el0_svc+0x58/0x138 [ 69.589332][ T5209] el0t_64_sync_handler+0x84/0xf0 [ 69.590049][ T5209] el0t_64_sync+0x18c/0x190 [ 69.591424][ T5209] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.593359][ T5209] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.611349][ T4348] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.695308][ T5207] loop1: detected capacity change from 0 to 32768 [ 69.801609][ T5212] loop2: detected capacity change from 0 to 32768 [ 69.810292][ T5207] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.811405][ T5207] CPU: 1 PID: 5207 Comm: syz.1.285 Not tainted syzkaller #0 [ 69.812509][ T5207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.813967][ T5207] Call trace: [ 69.814422][ T5207] dump_backtrace+0x1c8/0x1f4 [ 69.815113][ T5207] show_stack+0x2c/0x3c [ 69.815737][ T5207] __dump_stack+0x30/0x40 [ 69.816353][ T5207] dump_stack_lvl+0xf8/0x160 [ 69.817089][ T5207] dump_stack+0x1c/0x5c [ 69.817699][ T5207] sysfs_create_dir_ns+0x22c/0x24c [ 69.818439][ T5207] kobject_add_internal+0x5a8/0xb30 [ 69.819231][ T5207] kobject_init_and_add+0x118/0x17c [ 69.819989][ T5207] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.820719][ T5207] gfs2_fill_super+0xdec/0x19ec [ 69.821452][ T5207] get_tree_bdev+0x358/0x544 [ 69.822143][ T5207] gfs2_get_tree+0x54/0x1b4 [ 69.822859][ T5207] vfs_get_tree+0x90/0x274 [ 69.823526][ T5207] do_new_mount+0x228/0x810 [ 69.824205][ T5207] path_mount+0x5b4/0xe78 [ 69.824829][ T5207] __arm64_sys_mount+0x49c/0x584 [ 69.825566][ T5207] invoke_syscall+0x98/0x2bc [ 69.826231][ T5207] el0_svc_common+0x138/0x258 [ 69.826931][ T5207] do_el0_svc+0x58/0x13c [ 69.827539][ T5207] el0_svc+0x58/0x138 [ 69.828132][ T5207] el0t_64_sync_handler+0x84/0xf0 [ 69.828852][ T5207] el0t_64_sync+0x18c/0x190 [ 69.829555][ T5207] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.831389][ T5207] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.835260][ T5212] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.836293][ T5212] CPU: 1 PID: 5212 Comm: syz.2.288 Not tainted syzkaller #0 [ 69.837315][ T5212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.838640][ T5212] Call trace: [ 69.839092][ T5212] dump_backtrace+0x1c8/0x1f4 [ 69.839759][ T5212] show_stack+0x2c/0x3c [ 69.840337][ T5212] __dump_stack+0x30/0x40 [ 69.840954][ T5212] dump_stack_lvl+0xf8/0x160 [ 69.841645][ T5212] dump_stack+0x1c/0x5c [ 69.842265][ T5212] sysfs_create_dir_ns+0x22c/0x24c [ 69.843020][ T5212] kobject_add_internal+0x5a8/0xb30 [ 69.843778][ T5212] kobject_init_and_add+0x118/0x17c [ 69.844520][ T5212] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.845208][ T5212] gfs2_fill_super+0xdec/0x19ec [ 69.845912][ T5212] get_tree_bdev+0x358/0x544 [ 69.846602][ T5212] gfs2_get_tree+0x54/0x1b4 [ 69.847306][ T5212] vfs_get_tree+0x90/0x274 [ 69.847954][ T5212] do_new_mount+0x228/0x810 [ 69.848612][ T5212] path_mount+0x5b4/0xe78 [ 69.849267][ T5212] __arm64_sys_mount+0x49c/0x584 [ 69.849993][ T5212] invoke_syscall+0x98/0x2bc [ 69.850608][ T5212] el0_svc_common+0x138/0x258 [ 69.851279][ T5212] do_el0_svc+0x58/0x13c [ 69.851879][ T5212] el0_svc+0x58/0x138 [ 69.852461][ T5212] el0t_64_sync_handler+0x84/0xf0 [ 69.853164][ T5212] el0t_64_sync+0x18c/0x190 [ 69.853873][ T5212] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.855637][ T5212] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 69.906230][ T5216] loop0: detected capacity change from 0 to 32768 [ 69.907909][ T5216] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 69.908975][ T5216] CPU: 0 PID: 5216 Comm: syz.0.289 Not tainted syzkaller #0 [ 69.910052][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 69.911573][ T5216] Call trace: [ 69.912043][ T5216] dump_backtrace+0x1c8/0x1f4 [ 69.912780][ T5216] show_stack+0x2c/0x3c [ 69.913367][ T5216] __dump_stack+0x30/0x40 [ 69.914000][ T5216] dump_stack_lvl+0xf8/0x160 [ 69.914686][ T5216] dump_stack+0x1c/0x5c [ 69.915310][ T5216] sysfs_create_dir_ns+0x22c/0x24c [ 69.916111][ T5216] kobject_add_internal+0x5a8/0xb30 [ 69.916892][ T5216] kobject_init_and_add+0x118/0x17c [ 69.917670][ T5216] gfs2_sys_fs_add+0x1dc/0x3d8 [ 69.918383][ T5216] gfs2_fill_super+0xdec/0x19ec [ 69.919060][ T5216] get_tree_bdev+0x358/0x544 [ 69.919775][ T5216] gfs2_get_tree+0x54/0x1b4 [ 69.920478][ T5216] vfs_get_tree+0x90/0x274 [ 69.921177][ T5216] do_new_mount+0x228/0x810 [ 69.921797][ T5216] path_mount+0x5b4/0xe78 [ 69.922442][ T5216] __arm64_sys_mount+0x49c/0x584 [ 69.923169][ T5216] invoke_syscall+0x98/0x2bc [ 69.923898][ T5216] el0_svc_common+0x138/0x258 [ 69.924602][ T5216] do_el0_svc+0x58/0x13c [ 69.925201][ T5216] el0_svc+0x58/0x138 [ 69.925736][ T5216] el0t_64_sync_handler+0x84/0xf0 [ 69.926454][ T5216] el0t_64_sync+0x18c/0x190 [ 69.927151][ T5216] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 69.928957][ T5216] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.141509][ T5222] loop1: detected capacity change from 0 to 32768 [ 70.170338][ T5222] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.171494][ T5222] CPU: 0 PID: 5222 Comm: syz.1.291 Not tainted syzkaller #0 1970/01/01 00:01:10 executed programs: 284 [ 70.172562][ T5222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.174027][ T5222] Call trace: [ 70.174491][ T5222] dump_backtrace+0x1c8/0x1f4 [ 70.175194][ T5222] show_stack+0x2c/0x3c [ 70.175841][ T5222] __dump_stack+0x30/0x40 [ 70.176515][ T5222] dump_stack_lvl+0xf8/0x160 [ 70.177207][ T5222] dump_stack+0x1c/0x5c [ 70.177798][ T5222] sysfs_create_dir_ns+0x22c/0x24c [ 70.178528][ T5222] kobject_add_internal+0x5a8/0xb30 [ 70.179289][ T5222] kobject_init_and_add+0x118/0x17c [ 70.180032][ T5222] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.180757][ T5222] gfs2_fill_super+0xdec/0x19ec [ 70.181557][ T5222] get_tree_bdev+0x358/0x544 [ 70.182260][ T5222] gfs2_get_tree+0x54/0x1b4 [ 70.182889][ T5222] vfs_get_tree+0x90/0x274 [ 70.183546][ T5222] do_new_mount+0x228/0x810 [ 70.184222][ T5222] path_mount+0x5b4/0xe78 [ 70.184835][ T5222] __arm64_sys_mount+0x49c/0x584 [ 70.185505][ T5222] invoke_syscall+0x98/0x2bc [ 70.185532][ T4348] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.186127][ T5222] el0_svc_common+0x138/0x258 [ 70.188404][ T5222] do_el0_svc+0x58/0x13c [ 70.188972][ T5222] el0_svc+0x58/0x138 [ 70.189523][ T5222] el0t_64_sync_handler+0x84/0xf0 [ 70.190271][ T5222] el0t_64_sync+0x18c/0x190 [ 70.190998][ T5222] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.193044][ T5222] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.212225][ T5133] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.345462][ T5228] loop4: detected capacity change from 0 to 32768 [ 70.347334][ T5227] loop2: detected capacity change from 0 to 32768 [ 70.349242][ T5227] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.350488][ T5227] CPU: 1 PID: 5227 Comm: syz.2.293 Not tainted syzkaller #0 [ 70.350585][ T5228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.351631][ T5227] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.354108][ T5227] Call trace: [ 70.354559][ T5227] dump_backtrace+0x1c8/0x1f4 [ 70.355231][ T5227] show_stack+0x2c/0x3c [ 70.355847][ T5227] __dump_stack+0x30/0x40 [ 70.356438][ T5227] dump_stack_lvl+0xf8/0x160 [ 70.357074][ T5227] dump_stack+0x1c/0x5c [ 70.357706][ T5227] sysfs_create_dir_ns+0x22c/0x24c [ 70.358440][ T5227] kobject_add_internal+0x5a8/0xb30 [ 70.359198][ T5227] kobject_init_and_add+0x118/0x17c [ 70.359963][ T5227] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.360670][ T5227] gfs2_fill_super+0xdec/0x19ec [ 70.361429][ T5227] get_tree_bdev+0x358/0x544 [ 70.362129][ T5227] gfs2_get_tree+0x54/0x1b4 [ 70.362806][ T5227] vfs_get_tree+0x90/0x274 [ 70.363455][ T5227] do_new_mount+0x228/0x810 [ 70.364120][ T5227] path_mount+0x5b4/0xe78 [ 70.364784][ T5227] __arm64_sys_mount+0x49c/0x584 [ 70.365501][ T5227] invoke_syscall+0x98/0x2bc [ 70.366143][ T5227] el0_svc_common+0x138/0x258 [ 70.366852][ T5227] do_el0_svc+0x58/0x13c [ 70.367486][ T5227] el0_svc+0x58/0x138 [ 70.368086][ T5227] el0t_64_sync_handler+0x84/0xf0 [ 70.368826][ T5227] el0t_64_sync+0x18c/0x190 [ 70.369480][ T5228] CPU: 0 PID: 5228 Comm: syz.4.292 Not tainted syzkaller #0 [ 70.369524][ T5227] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.370458][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.370475][ T5228] Call trace: [ 70.372159][ T5227] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.373499][ T5228] dump_backtrace+0x1c8/0x1f4 [ 70.375419][ T5228] show_stack+0x2c/0x3c [ 70.376021][ T5228] __dump_stack+0x30/0x40 [ 70.376683][ T5228] dump_stack_lvl+0xf8/0x160 [ 70.377349][ T5228] dump_stack+0x1c/0x5c [ 70.377894][ T5228] sysfs_create_dir_ns+0x22c/0x24c [ 70.378647][ T5228] kobject_add_internal+0x5a8/0xb30 [ 70.379380][ T5228] kobject_init_and_add+0x118/0x17c [ 70.380080][ T5228] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.380764][ T5228] gfs2_fill_super+0xdec/0x19ec [ 70.381449][ T5228] get_tree_bdev+0x358/0x544 [ 70.382186][ T5228] gfs2_get_tree+0x54/0x1b4 [ 70.382823][ T5228] vfs_get_tree+0x90/0x274 [ 70.383502][ T5228] do_new_mount+0x228/0x810 [ 70.384138][ T5228] path_mount+0x5b4/0xe78 [ 70.384825][ T5228] __arm64_sys_mount+0x49c/0x584 [ 70.385561][ T5228] invoke_syscall+0x98/0x2bc [ 70.386214][ T5228] el0_svc_common+0x138/0x258 [ 70.386933][ T5228] do_el0_svc+0x58/0x13c [ 70.387651][ T5228] el0_svc+0x58/0x138 [ 70.388280][ T5228] el0t_64_sync_handler+0x84/0xf0 [ 70.389014][ T5228] el0t_64_sync+0x18c/0x190 [ 70.389687][ T5228] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.391581][ T5228] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.511856][ T5119] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 70.574342][ T5226] loop0: detected capacity change from 0 to 32768 [ 70.598273][ T5226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.599451][ T5226] CPU: 0 PID: 5226 Comm: syz.0.294 Not tainted syzkaller #0 [ 70.600593][ T5226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.602166][ T5226] Call trace: [ 70.602650][ T5226] dump_backtrace+0x1c8/0x1f4 [ 70.603339][ T5226] show_stack+0x2c/0x3c [ 70.603950][ T5226] __dump_stack+0x30/0x40 [ 70.604611][ T5226] dump_stack_lvl+0xf8/0x160 [ 70.605264][ T5226] dump_stack+0x1c/0x5c [ 70.605897][ T5226] sysfs_create_dir_ns+0x22c/0x24c [ 70.606629][ T5226] kobject_add_internal+0x5a8/0xb30 [ 70.607361][ T5226] kobject_init_and_add+0x118/0x17c [ 70.608106][ T5226] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.608777][ T5226] gfs2_fill_super+0xdec/0x19ec [ 70.609508][ T5226] get_tree_bdev+0x358/0x544 [ 70.610166][ T5226] gfs2_get_tree+0x54/0x1b4 [ 70.610830][ T5226] vfs_get_tree+0x90/0x274 [ 70.611493][ T5226] do_new_mount+0x228/0x810 [ 70.612167][ T5226] path_mount+0x5b4/0xe78 [ 70.612816][ T5226] __arm64_sys_mount+0x49c/0x584 [ 70.613521][ T5226] invoke_syscall+0x98/0x2bc [ 70.614142][ T5226] el0_svc_common+0x138/0x258 [ 70.614785][ T5226] do_el0_svc+0x58/0x13c [ 70.615392][ T5226] el0_svc+0x58/0x138 [ 70.615949][ T5226] el0t_64_sync_handler+0x84/0xf0 [ 70.616671][ T5226] el0t_64_sync+0x18c/0x190 [ 70.617378][ T5226] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.619146][ T5226] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.660191][ T4381] Bluetooth: hci5: command 0x041b tx timeout [ 70.686718][ T5232] loop2: detected capacity change from 0 to 32768 [ 70.689159][ T5232] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.690339][ T5232] CPU: 1 PID: 5232 Comm: syz.2.296 Not tainted syzkaller #0 [ 70.691485][ T5232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.692952][ T5232] Call trace: [ 70.693417][ T5232] dump_backtrace+0x1c8/0x1f4 [ 70.694185][ T5232] show_stack+0x2c/0x3c [ 70.694796][ T5232] __dump_stack+0x30/0x40 [ 70.695482][ T5232] dump_stack_lvl+0xf8/0x160 [ 70.696160][ T5232] dump_stack+0x1c/0x5c [ 70.696816][ T5232] sysfs_create_dir_ns+0x22c/0x24c [ 70.697590][ T5232] kobject_add_internal+0x5a8/0xb30 [ 70.698374][ T5232] kobject_init_and_add+0x118/0x17c [ 70.699063][ T5232] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.699749][ T5232] gfs2_fill_super+0xdec/0x19ec [ 70.700522][ T5232] get_tree_bdev+0x358/0x544 [ 70.701211][ T5232] gfs2_get_tree+0x54/0x1b4 [ 70.701864][ T5232] vfs_get_tree+0x90/0x274 [ 70.702557][ T5232] do_new_mount+0x228/0x810 [ 70.703240][ T5232] path_mount+0x5b4/0xe78 [ 70.703875][ T5232] __arm64_sys_mount+0x49c/0x584 [ 70.704545][ T5232] invoke_syscall+0x98/0x2bc [ 70.705196][ T5232] el0_svc_common+0x138/0x258 [ 70.705855][ T5232] do_el0_svc+0x58/0x13c [ 70.706480][ T5232] el0_svc+0x58/0x138 [ 70.707094][ T5232] el0t_64_sync_handler+0x84/0xf0 [ 70.707785][ T5232] el0t_64_sync+0x18c/0x190 [ 70.708480][ T5232] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.710280][ T5232] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.719615][ T5119] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 70.831469][ T5234] loop0: detected capacity change from 0 to 32768 [ 70.850453][ T5234] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 70.851587][ T5234] CPU: 0 PID: 5234 Comm: syz.0.297 Not tainted syzkaller #0 [ 70.852553][ T5234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 70.853933][ T5234] Call trace: [ 70.854408][ T5234] dump_backtrace+0x1c8/0x1f4 [ 70.855054][ T5234] show_stack+0x2c/0x3c [ 70.855694][ T5234] __dump_stack+0x30/0x40 [ 70.856294][ T5234] dump_stack_lvl+0xf8/0x160 [ 70.856923][ T5234] dump_stack+0x1c/0x5c [ 70.857487][ T5234] sysfs_create_dir_ns+0x22c/0x24c [ 70.858313][ T5234] kobject_add_internal+0x5a8/0xb30 [ 70.859117][ T5234] kobject_init_and_add+0x118/0x17c [ 70.859916][ T5234] gfs2_sys_fs_add+0x1dc/0x3d8 [ 70.860628][ T5234] gfs2_fill_super+0xdec/0x19ec [ 70.861335][ T5234] get_tree_bdev+0x358/0x544 [ 70.862022][ T5234] gfs2_get_tree+0x54/0x1b4 [ 70.862714][ T5234] vfs_get_tree+0x90/0x274 [ 70.863427][ T5234] do_new_mount+0x228/0x810 [ 70.864100][ T5234] path_mount+0x5b4/0xe78 [ 70.864757][ T5234] __arm64_sys_mount+0x49c/0x584 [ 70.865461][ T5234] invoke_syscall+0x98/0x2bc [ 70.866103][ T5234] el0_svc_common+0x138/0x258 [ 70.866816][ T5234] do_el0_svc+0x58/0x13c [ 70.867425][ T5234] el0_svc+0x58/0x138 [ 70.868052][ T5234] el0t_64_sync_handler+0x84/0xf0 [ 70.868789][ T5234] el0t_64_sync+0x18c/0x190 [ 70.869482][ T5234] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 70.871328][ T5234] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 70.880726][ T4555] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.998881][ T5238] loop4: detected capacity change from 0 to 32768 [ 71.021908][ T5238] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.023120][ T5238] CPU: 1 PID: 5238 Comm: syz.4.299 Not tainted syzkaller #0 [ 71.024266][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.025854][ T5238] Call trace: [ 71.026389][ T5238] dump_backtrace+0x1c8/0x1f4 [ 71.027099][ T5238] show_stack+0x2c/0x3c [ 71.027674][ T5238] __dump_stack+0x30/0x40 [ 71.028363][ T5238] dump_stack_lvl+0xf8/0x160 [ 71.029048][ T5238] dump_stack+0x1c/0x5c [ 71.029659][ T5238] sysfs_create_dir_ns+0x22c/0x24c [ 71.030403][ T5238] kobject_add_internal+0x5a8/0xb30 [ 71.031115][ T5238] kobject_init_and_add+0x118/0x17c [ 71.031886][ T5238] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.032664][ T5238] gfs2_fill_super+0xdec/0x19ec [ 71.033379][ T5238] get_tree_bdev+0x358/0x544 [ 71.034084][ T5238] gfs2_get_tree+0x54/0x1b4 [ 71.034751][ T5238] vfs_get_tree+0x90/0x274 [ 71.035375][ T5238] do_new_mount+0x228/0x810 [ 71.036071][ T5238] path_mount+0x5b4/0xe78 [ 71.036718][ T5238] __arm64_sys_mount+0x49c/0x584 [ 71.037477][ T5238] invoke_syscall+0x98/0x2bc [ 71.038144][ T5238] el0_svc_common+0x138/0x258 [ 71.038816][ T5238] do_el0_svc+0x58/0x13c [ 71.039460][ T5238] el0_svc+0x58/0x138 [ 71.040074][ T5238] el0t_64_sync_handler+0x84/0xf0 [ 71.040907][ T5238] el0t_64_sync+0x18c/0x190 [ 71.041685][ T5238] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.043613][ T5238] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.071285][ T5119] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 71.072594][ T4348] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 71.199909][ T5242] loop1: detected capacity change from 0 to 32768 [ 71.250579][ T5119] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 71.262426][ T5242] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.263569][ T5242] CPU: 0 PID: 5242 Comm: syz.1.301 Not tainted syzkaller #0 [ 71.264697][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.266211][ T5242] Call trace: [ 71.266703][ T5242] dump_backtrace+0x1c8/0x1f4 [ 71.267383][ T5242] show_stack+0x2c/0x3c [ 71.268017][ T5242] __dump_stack+0x30/0x40 [ 71.268685][ T5242] dump_stack_lvl+0xf8/0x160 [ 71.269360][ T5242] dump_stack+0x1c/0x5c [ 71.269948][ T5242] sysfs_create_dir_ns+0x22c/0x24c [ 71.270694][ T5242] kobject_add_internal+0x5a8/0xb30 [ 71.271465][ T5242] kobject_init_and_add+0x118/0x17c [ 71.272196][ T5242] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.272902][ T5242] gfs2_fill_super+0xdec/0x19ec [ 71.273623][ T5242] get_tree_bdev+0x358/0x544 [ 71.274254][ T5242] gfs2_get_tree+0x54/0x1b4 [ 71.274928][ T5242] vfs_get_tree+0x90/0x274 [ 71.275573][ T5242] do_new_mount+0x228/0x810 [ 71.276226][ T5242] path_mount+0x5b4/0xe78 [ 71.276869][ T5242] __arm64_sys_mount+0x49c/0x584 [ 71.277635][ T5242] invoke_syscall+0x98/0x2bc [ 71.278309][ T5242] el0_svc_common+0x138/0x258 [ 71.279026][ T5242] do_el0_svc+0x58/0x13c [ 71.279724][ T5242] el0_svc+0x58/0x138 [ 71.280375][ T5242] el0t_64_sync_handler+0x84/0xf0 [ 71.281153][ T5242] el0t_64_sync+0x18c/0x190 [ 71.281922][ T5242] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.283703][ T5242] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.405473][ T5247] loop2: detected capacity change from 0 to 32768 [ 71.422615][ T5247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.423810][ T5247] CPU: 1 PID: 5247 Comm: syz.2.303 Not tainted syzkaller #0 [ 71.425019][ T5247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.426477][ T5247] Call trace: [ 71.426952][ T5247] dump_backtrace+0x1c8/0x1f4 [ 71.427551][ T5251] loop0: detected capacity change from 0 to 32768 [ 71.427660][ T5247] show_stack+0x2c/0x3c [ 71.429280][ T5247] __dump_stack+0x30/0x40 [ 71.429911][ T5247] dump_stack_lvl+0xf8/0x160 [ 71.430601][ T5247] dump_stack+0x1c/0x5c [ 71.431249][ T5247] sysfs_create_dir_ns+0x22c/0x24c [ 71.432064][ T5247] kobject_add_internal+0x5a8/0xb30 [ 71.432904][ T5247] kobject_init_and_add+0x118/0x17c [ 71.433695][ T5247] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.434395][ T5247] gfs2_fill_super+0xdec/0x19ec [ 71.435120][ T5247] get_tree_bdev+0x358/0x544 [ 71.435831][ T5247] gfs2_get_tree+0x54/0x1b4 [ 71.436513][ T5247] vfs_get_tree+0x90/0x274 [ 71.437151][ T5247] do_new_mount+0x228/0x810 [ 71.437809][ T5247] path_mount+0x5b4/0xe78 [ 71.438391][ T5247] __arm64_sys_mount+0x49c/0x584 [ 71.439055][ T5247] invoke_syscall+0x98/0x2bc [ 71.439716][ T5247] el0_svc_common+0x138/0x258 [ 71.440396][ T5247] do_el0_svc+0x58/0x13c [ 71.441033][ T5247] el0_svc+0x58/0x138 [ 71.441562][ T5247] el0t_64_sync_handler+0x84/0xf0 [ 71.442320][ T5247] el0t_64_sync+0x18c/0x190 [ 71.443080][ T5247] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.444889][ T5247] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.446666][ T5251] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.447749][ T5251] CPU: 0 PID: 5251 Comm: syz.0.304 Not tainted syzkaller #0 [ 71.448840][ T5251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.450574][ T5251] Call trace: [ 71.451106][ T5251] dump_backtrace+0x1c8/0x1f4 [ 71.451866][ T5251] show_stack+0x2c/0x3c [ 71.452643][ T5251] __dump_stack+0x30/0x40 [ 71.453346][ T5251] dump_stack_lvl+0xf8/0x160 [ 71.454062][ T5251] dump_stack+0x1c/0x5c [ 71.454663][ T5251] sysfs_create_dir_ns+0x22c/0x24c [ 71.455469][ T5251] kobject_add_internal+0x5a8/0xb30 [ 71.456192][ T5251] kobject_init_and_add+0x118/0x17c [ 71.456896][ T5251] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.457582][ T5251] gfs2_fill_super+0xdec/0x19ec [ 71.458300][ T5251] get_tree_bdev+0x358/0x544 [ 71.458990][ T5251] gfs2_get_tree+0x54/0x1b4 [ 71.459646][ T5251] vfs_get_tree+0x90/0x274 [ 71.460346][ T5251] do_new_mount+0x228/0x810 [ 71.460977][ T5251] path_mount+0x5b4/0xe78 [ 71.461592][ T5251] __arm64_sys_mount+0x49c/0x584 [ 71.462304][ T5251] invoke_syscall+0x98/0x2bc [ 71.462925][ T5251] el0_svc_common+0x138/0x258 [ 71.463576][ T5251] do_el0_svc+0x58/0x13c [ 71.464172][ T5251] el0_svc+0x58/0x138 [ 71.464724][ T5251] el0t_64_sync_handler+0x84/0xf0 [ 71.465404][ T5251] el0t_64_sync+0x18c/0x190 [ 71.466087][ T5251] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.467856][ T5251] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.574712][ T5253] loop4: detected capacity change from 0 to 32768 [ 71.613972][ T5253] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.615096][ T5253] CPU: 0 PID: 5253 Comm: syz.4.305 Not tainted syzkaller #0 [ 71.616077][ T5253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.617460][ T5253] Call trace: [ 71.617936][ T5253] dump_backtrace+0x1c8/0x1f4 [ 71.618601][ T5253] show_stack+0x2c/0x3c [ 71.619203][ T5253] __dump_stack+0x30/0x40 [ 71.619757][ T5253] dump_stack_lvl+0xf8/0x160 [ 71.620427][ T5253] dump_stack+0x1c/0x5c [ 71.621021][ T5253] sysfs_create_dir_ns+0x22c/0x24c [ 71.621814][ T5253] kobject_add_internal+0x5a8/0xb30 [ 71.622513][ T5253] kobject_init_and_add+0x118/0x17c [ 71.623212][ T5253] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.623914][ T5253] gfs2_fill_super+0xdec/0x19ec [ 71.624600][ T5253] get_tree_bdev+0x358/0x544 [ 71.625231][ T5253] gfs2_get_tree+0x54/0x1b4 [ 71.625918][ T5253] vfs_get_tree+0x90/0x274 [ 71.626540][ T5253] do_new_mount+0x228/0x810 [ 71.627171][ T5253] path_mount+0x5b4/0xe78 [ 71.627772][ T5253] __arm64_sys_mount+0x49c/0x584 [ 71.628476][ T5253] invoke_syscall+0x98/0x2bc [ 71.629117][ T5253] el0_svc_common+0x138/0x258 [ 71.629759][ T5253] do_el0_svc+0x58/0x13c [ 71.630346][ T5253] el0_svc+0x58/0x138 [ 71.630918][ T5253] el0t_64_sync_handler+0x84/0xf0 [ 71.631580][ T5253] el0t_64_sync+0x18c/0x190 [ 71.632262][ T5253] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.634044][ T5253] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.730548][ T5257] loop1: detected capacity change from 0 to 32768 [ 71.808235][ T5259] loop2: detected capacity change from 0 to 32768 [ 71.812292][ T5257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.813439][ T5257] CPU: 0 PID: 5257 Comm: syz.1.308 Not tainted syzkaller #0 [ 71.814539][ T5257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.816003][ T5257] Call trace: [ 71.816493][ T5257] dump_backtrace+0x1c8/0x1f4 [ 71.817202][ T5257] show_stack+0x2c/0x3c [ 71.817836][ T5257] __dump_stack+0x30/0x40 [ 71.818502][ T5257] dump_stack_lvl+0xf8/0x160 [ 71.819184][ T5257] dump_stack+0x1c/0x5c [ 71.819766][ T5257] sysfs_create_dir_ns+0x22c/0x24c [ 71.820506][ T5257] kobject_add_internal+0x5a8/0xb30 [ 71.821237][ T5257] kobject_init_and_add+0x118/0x17c [ 71.821999][ T5257] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.822652][ T5257] gfs2_fill_super+0xdec/0x19ec [ 71.823341][ T5257] get_tree_bdev+0x358/0x544 [ 71.823993][ T5257] gfs2_get_tree+0x54/0x1b4 [ 71.824613][ T5257] vfs_get_tree+0x90/0x274 [ 71.825231][ T5257] do_new_mount+0x228/0x810 [ 71.825883][ T5257] path_mount+0x5b4/0xe78 [ 71.826513][ T5257] __arm64_sys_mount+0x49c/0x584 [ 71.827306][ T5257] invoke_syscall+0x98/0x2bc [ 71.827963][ T5257] el0_svc_common+0x138/0x258 [ 71.828594][ T5257] do_el0_svc+0x58/0x13c [ 71.829266][ T5257] el0_svc+0x58/0x138 [ 71.829864][ T5257] el0t_64_sync_handler+0x84/0xf0 [ 71.830629][ T5257] el0t_64_sync+0x18c/0x190 [ 71.831373][ T5257] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.833116][ T5257] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.838030][ T5259] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.839065][ T5259] CPU: 0 PID: 5259 Comm: syz.2.309 Not tainted syzkaller #0 [ 71.840099][ T5259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.841612][ T5259] Call trace: [ 71.842093][ T5259] dump_backtrace+0x1c8/0x1f4 [ 71.842758][ T5259] show_stack+0x2c/0x3c [ 71.843329][ T5259] __dump_stack+0x30/0x40 [ 71.843985][ T5259] dump_stack_lvl+0xf8/0x160 [ 71.844621][ T5259] dump_stack+0x1c/0x5c [ 71.845227][ T5259] sysfs_create_dir_ns+0x22c/0x24c [ 71.845938][ T5259] kobject_add_internal+0x5a8/0xb30 [ 71.846756][ T5259] kobject_init_and_add+0x118/0x17c [ 71.847452][ T5259] gfs2_sys_fs_add+0x1dc/0x3d8 [ 71.848162][ T5259] gfs2_fill_super+0xdec/0x19ec [ 71.848857][ T5259] get_tree_bdev+0x358/0x544 [ 71.849560][ T5259] gfs2_get_tree+0x54/0x1b4 [ 71.850244][ T5259] vfs_get_tree+0x90/0x274 [ 71.850900][ T5259] do_new_mount+0x228/0x810 [ 71.851559][ T5259] path_mount+0x5b4/0xe78 [ 71.852234][ T5259] __arm64_sys_mount+0x49c/0x584 [ 71.852932][ T5259] invoke_syscall+0x98/0x2bc [ 71.853577][ T5259] el0_svc_common+0x138/0x258 [ 71.854259][ T5259] do_el0_svc+0x58/0x13c [ 71.854870][ T5259] el0_svc+0x58/0x138 [ 71.855430][ T5259] el0t_64_sync_handler+0x84/0xf0 [ 71.856170][ T5259] el0t_64_sync+0x18c/0x190 [ 71.856847][ T5259] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 71.858548][ T5259] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 71.973034][ T5262] loop0: detected capacity change from 0 to 32768 [ 71.993757][ T5119] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.995123][ T5262] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 71.996138][ T5262] CPU: 1 PID: 5262 Comm: syz.0.310 Not tainted syzkaller #0 [ 71.997200][ T5262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 71.998658][ T5262] Call trace: [ 71.999161][ T5262] dump_backtrace+0x1c8/0x1f4 [ 71.999853][ T5262] show_stack+0x2c/0x3c [ 72.000497][ T5262] __dump_stack+0x30/0x40 [ 72.001137][ T5262] dump_stack_lvl+0xf8/0x160 [ 72.001858][ T5262] dump_stack+0x1c/0x5c [ 72.002462][ T5262] sysfs_create_dir_ns+0x22c/0x24c [ 72.003206][ T5262] kobject_add_internal+0x5a8/0xb30 [ 72.003993][ T5262] kobject_init_and_add+0x118/0x17c [ 72.004735][ T5262] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.005445][ T5262] gfs2_fill_super+0xdec/0x19ec [ 72.006148][ T5262] get_tree_bdev+0x358/0x544 [ 72.006793][ T5262] gfs2_get_tree+0x54/0x1b4 [ 72.007389][ T5262] vfs_get_tree+0x90/0x274 [ 72.008039][ T5262] do_new_mount+0x228/0x810 [ 72.008694][ T5262] path_mount+0x5b4/0xe78 [ 72.009261][ T5262] __arm64_sys_mount+0x49c/0x584 [ 72.009942][ T5262] invoke_syscall+0x98/0x2bc [ 72.010661][ T5262] el0_svc_common+0x138/0x258 [ 72.011387][ T5262] do_el0_svc+0x58/0x13c [ 72.011982][ T5262] el0_svc+0x58/0x138 [ 72.012642][ T5262] el0t_64_sync_handler+0x84/0xf0 [ 72.013395][ T5262] el0t_64_sync+0x18c/0x190 [ 72.014415][ T5262] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.016257][ T5262] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 72.066712][ T5119] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.077757][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.079275][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.182368][ T5271] loop4: detected capacity change from 0 to 32768 [ 72.190654][ T5271] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 72.191838][ T5271] CPU: 1 PID: 5271 Comm: syz.4.311 Not tainted syzkaller #0 [ 72.192993][ T5271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.194539][ T5271] Call trace: [ 72.195090][ T5271] dump_backtrace+0x1c8/0x1f4 [ 72.195845][ T5271] show_stack+0x2c/0x3c [ 72.196480][ T5271] __dump_stack+0x30/0x40 [ 72.197132][ T5271] dump_stack_lvl+0xf8/0x160 [ 72.197848][ T5271] dump_stack+0x1c/0x5c [ 72.198456][ T5271] sysfs_create_dir_ns+0x22c/0x24c [ 72.199195][ T5271] kobject_add_internal+0x5a8/0xb30 [ 72.199946][ T5271] kobject_init_and_add+0x118/0x17c [ 72.200694][ T5271] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.201375][ T5271] gfs2_fill_super+0xdec/0x19ec [ 72.202089][ T5271] get_tree_bdev+0x358/0x544 [ 72.202690][ T5271] gfs2_get_tree+0x54/0x1b4 [ 72.203343][ T5271] vfs_get_tree+0x90/0x274 [ 72.203990][ T5271] do_new_mount+0x228/0x810 [ 72.204642][ T5271] path_mount+0x5b4/0xe78 [ 72.205255][ T5271] __arm64_sys_mount+0x49c/0x584 [ 72.206048][ T5271] invoke_syscall+0x98/0x2bc [ 72.206759][ T5271] el0_svc_common+0x138/0x258 [ 72.207455][ T5271] do_el0_svc+0x58/0x13c [ 72.208113][ T5271] el0_svc+0x58/0x138 [ 72.208706][ T5271] el0t_64_sync_handler+0x84/0xf0 [ 72.209406][ T5271] el0t_64_sync+0x18c/0x190 [ 72.210139][ T5271] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.211967][ T5271] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 72.318805][ T5275] loop1: detected capacity change from 0 to 32768 [ 72.321922][ T5276] loop2: detected capacity change from 0 to 32768 [ 72.336313][ T5276] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 72.336319][ T5275] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 72.336335][ T5275] CPU: 1 PID: 5275 Comm: syz.1.313 Not tainted syzkaller #0 [ 72.339685][ T5275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.341103][ T5275] Call trace: [ 72.341568][ T5275] dump_backtrace+0x1c8/0x1f4 [ 72.342264][ T5275] show_stack+0x2c/0x3c [ 72.342830][ T5275] __dump_stack+0x30/0x40 [ 72.343494][ T5275] dump_stack_lvl+0xf8/0x160 [ 72.344202][ T5275] dump_stack+0x1c/0x5c [ 72.344766][ T5275] sysfs_create_dir_ns+0x22c/0x24c [ 72.345547][ T5275] kobject_add_internal+0x5a8/0xb30 [ 72.346257][ T5275] kobject_init_and_add+0x118/0x17c [ 72.346971][ T5275] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.347628][ T5275] gfs2_fill_super+0xdec/0x19ec [ 72.348302][ T5275] get_tree_bdev+0x358/0x544 [ 72.348986][ T5275] gfs2_get_tree+0x54/0x1b4 [ 72.349650][ T5275] vfs_get_tree+0x90/0x274 [ 72.350323][ T5275] do_new_mount+0x228/0x810 [ 72.350990][ T5275] path_mount+0x5b4/0xe78 [ 72.351612][ T5275] __arm64_sys_mount+0x49c/0x584 [ 72.352324][ T5275] invoke_syscall+0x98/0x2bc [ 72.353024][ T5275] el0_svc_common+0x138/0x258 [ 72.353686][ T5275] do_el0_svc+0x58/0x13c [ 72.354296][ T5275] el0_svc+0x58/0x138 [ 72.354917][ T5275] el0t_64_sync_handler+0x84/0xf0 [ 72.355585][ T5275] el0t_64_sync+0x18c/0x190 [ 72.356268][ T5276] CPU: 0 PID: 5276 Comm: syz.2.314 Not tainted syzkaller #0 [ 72.356331][ T5275] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.357393][ T5276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.359288][ T5275] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 72.360614][ T5276] Call trace: [ 72.360623][ T5276] dump_backtrace+0x1c8/0x1f4 [ 72.362625][ T5276] show_stack+0x2c/0x3c [ 72.363249][ T5276] __dump_stack+0x30/0x40 [ 72.363861][ T5276] dump_stack_lvl+0xf8/0x160 [ 72.364508][ T5276] dump_stack+0x1c/0x5c [ 72.365103][ T5276] sysfs_create_dir_ns+0x22c/0x24c [ 72.365893][ T5276] kobject_add_internal+0x5a8/0xb30 [ 72.366658][ T5276] kobject_init_and_add+0x118/0x17c [ 72.367428][ T5276] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.368192][ T5276] gfs2_fill_super+0xdec/0x19ec [ 72.368903][ T5276] get_tree_bdev+0x358/0x544 [ 72.369596][ T5276] gfs2_get_tree+0x54/0x1b4 [ 72.370342][ T5276] vfs_get_tree+0x90/0x274 [ 72.371039][ T5276] do_new_mount+0x228/0x810 [ 72.371715][ T5276] path_mount+0x5b4/0xe78 [ 72.372470][ T5276] __arm64_sys_mount+0x49c/0x584 [ 72.373260][ T5276] invoke_syscall+0x98/0x2bc [ 72.374003][ T5276] el0_svc_common+0x138/0x258 [ 72.374769][ T5276] do_el0_svc+0x58/0x13c [ 72.375433][ T5276] el0_svc+0x58/0x138 [ 72.376075][ T5276] el0t_64_sync_handler+0x84/0xf0 [ 72.376836][ T5276] el0t_64_sync+0x18c/0x190 [ 72.377568][ T5276] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.379422][ T5276] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 72.394457][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.400618][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.403570][ T1703] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.404718][ T1703] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.409523][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.416550][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.417970][ T1703] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.419112][ T1703] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.422837][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.499347][ T5119] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 72.502440][ T5119] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.589802][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.591693][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.593148][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.594792][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.596317][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.598343][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.599865][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.633806][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.635394][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.636725][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.639399][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.646674][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.712231][ T5284] loop2: detected capacity change from 0 to 32768 [ 72.740230][ T4383] Bluetooth: hci5: command 0x040f tx timeout [ 72.756256][ T5284] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 72.757320][ T5284] CPU: 0 PID: 5284 Comm: syz.2.318 Not tainted syzkaller #0 [ 72.758430][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.759934][ T5284] Call trace: [ 72.760434][ T5284] dump_backtrace+0x1c8/0x1f4 [ 72.761158][ T5284] show_stack+0x2c/0x3c [ 72.761752][ T5284] __dump_stack+0x30/0x40 [ 72.762334][ T5284] dump_stack_lvl+0xf8/0x160 [ 72.762974][ T5284] dump_stack+0x1c/0x5c [ 72.763574][ T5284] sysfs_create_dir_ns+0x22c/0x24c [ 72.764319][ T5284] kobject_add_internal+0x5a8/0xb30 [ 72.765147][ T5284] kobject_init_and_add+0x118/0x17c [ 72.765897][ T5284] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.766580][ T5284] gfs2_fill_super+0xdec/0x19ec [ 72.767326][ T5284] get_tree_bdev+0x358/0x544 [ 72.768008][ T5284] gfs2_get_tree+0x54/0x1b4 [ 72.768689][ T5284] vfs_get_tree+0x90/0x274 [ 72.769313][ T5284] do_new_mount+0x228/0x810 [ 72.770019][ T5284] path_mount+0x5b4/0xe78 [ 72.770607][ T5284] __arm64_sys_mount+0x49c/0x584 [ 72.771402][ T5284] invoke_syscall+0x98/0x2bc [ 72.772101][ T5284] el0_svc_common+0x138/0x258 [ 72.772806][ T5284] do_el0_svc+0x58/0x13c [ 72.773441][ T5284] el0_svc+0x58/0x138 [ 72.774073][ T5284] el0t_64_sync_handler+0x84/0xf0 [ 72.774796][ T5284] el0t_64_sync+0x18c/0x190 [ 72.775510][ T5284] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.777458][ T5284] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 72.961337][ T5294] loop1: detected capacity change from 0 to 32768 [ 72.962988][ T5294] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 72.963999][ T5294] CPU: 1 PID: 5294 Comm: syz.1.322 Not tainted syzkaller #0 [ 72.965055][ T5294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 72.966506][ T5294] Call trace: [ 72.966943][ T5294] dump_backtrace+0x1c8/0x1f4 [ 72.967561][ T5294] show_stack+0x2c/0x3c [ 72.968172][ T5294] __dump_stack+0x30/0x40 [ 72.968770][ T5294] dump_stack_lvl+0xf8/0x160 [ 72.969449][ T5294] dump_stack+0x1c/0x5c [ 72.970075][ T5294] sysfs_create_dir_ns+0x22c/0x24c [ 72.970817][ T5294] kobject_add_internal+0x5a8/0xb30 [ 72.971577][ T5294] kobject_init_and_add+0x118/0x17c [ 72.972314][ T5294] gfs2_sys_fs_add+0x1dc/0x3d8 [ 72.973119][ T5294] gfs2_fill_super+0xdec/0x19ec [ 72.973910][ T5294] get_tree_bdev+0x358/0x544 [ 72.974632][ T5294] gfs2_get_tree+0x54/0x1b4 [ 72.975352][ T5294] vfs_get_tree+0x90/0x274 [ 72.976039][ T5294] do_new_mount+0x228/0x810 [ 72.976764][ T5294] path_mount+0x5b4/0xe78 [ 72.977392][ T5294] __arm64_sys_mount+0x49c/0x584 [ 72.978111][ T5294] invoke_syscall+0x98/0x2bc [ 72.978893][ T5294] el0_svc_common+0x138/0x258 [ 72.979671][ T5294] do_el0_svc+0x58/0x13c [ 72.980379][ T5294] el0_svc+0x58/0x138 [ 72.981030][ T5294] el0t_64_sync_handler+0x84/0xf0 [ 72.981865][ T5294] el0t_64_sync+0x18c/0x190 [ 72.982786][ T5294] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 72.984526][ T5294] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 73.089881][ T5292] loop4: detected capacity change from 0 to 32768 [ 73.203825][ T5299] loop0: detected capacity change from 0 to 32768 [ 73.206647][ T5299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 73.207717][ T5299] CPU: 0 PID: 5299 Comm: syz.0.324 Not tainted syzkaller #0 [ 73.208823][ T5299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.208891][ T5292] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 73.210273][ T5299] Call trace: [ 73.210282][ T5299] dump_backtrace+0x1c8/0x1f4 [ 73.210302][ T5299] show_stack+0x2c/0x3c [ 73.210308][ T5299] __dump_stack+0x30/0x40 [ 73.210315][ T5299] dump_stack_lvl+0xf8/0x160 [ 73.210321][ T5299] dump_stack+0x1c/0x5c [ 73.215196][ T5299] sysfs_create_dir_ns+0x22c/0x24c [ 73.215928][ T5299] kobject_add_internal+0x5a8/0xb30 [ 73.216686][ T5299] kobject_init_and_add+0x118/0x17c [ 73.217418][ T5299] gfs2_sys_fs_add+0x1dc/0x3d8 [ 73.218138][ T5299] gfs2_fill_super+0xdec/0x19ec [ 73.218820][ T5299] get_tree_bdev+0x358/0x544 [ 73.219509][ T5299] gfs2_get_tree+0x54/0x1b4 [ 73.220150][ T5299] vfs_get_tree+0x90/0x274 [ 73.220831][ T5299] do_new_mount+0x228/0x810 [ 73.221454][ T5299] path_mount+0x5b4/0xe78 [ 73.222052][ T5299] __arm64_sys_mount+0x49c/0x584 [ 73.222748][ T5299] invoke_syscall+0x98/0x2bc [ 73.223452][ T5299] el0_svc_common+0x138/0x258 [ 73.224109][ T5299] do_el0_svc+0x58/0x13c [ 73.224756][ T5299] el0_svc+0x58/0x138 [ 73.225348][ T5299] el0t_64_sync_handler+0x84/0xf0 [ 73.226065][ T5299] el0t_64_sync+0x18c/0x190 [ 73.226767][ T5292] CPU: 1 PID: 5292 Comm: syz.4.321 Not tainted syzkaller #0 [ 73.226817][ T5299] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 73.227846][ T5292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.229545][ T5299] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 73.230991][ T5292] Call trace: [ 73.230999][ T5292] dump_backtrace+0x1c8/0x1f4 [ 73.232970][ T5292] show_stack+0x2c/0x3c [ 73.233572][ T5292] __dump_stack+0x30/0x40 [ 73.234216][ T5292] dump_stack_lvl+0xf8/0x160 [ 73.234949][ T5292] dump_stack+0x1c/0x5c [ 73.235547][ T5292] sysfs_create_dir_ns+0x22c/0x24c [ 73.236273][ T5292] kobject_add_internal+0x5a8/0xb30 [ 73.237128][ T5292] kobject_init_and_add+0x118/0x17c [ 73.237950][ T5292] gfs2_sys_fs_add+0x1dc/0x3d8 [ 73.238680][ T5292] gfs2_fill_super+0xdec/0x19ec [ 73.239420][ T5292] get_tree_bdev+0x358/0x544 [ 73.240077][ T5292] gfs2_get_tree+0x54/0x1b4 [ 73.240783][ T5292] vfs_get_tree+0x90/0x274 [ 73.241407][ T5292] do_new_mount+0x228/0x810 [ 73.242069][ T5292] path_mount+0x5b4/0xe78 [ 73.242717][ T5292] __arm64_sys_mount+0x49c/0x584 [ 73.243417][ T5292] invoke_syscall+0x98/0x2bc [ 73.244060][ T5292] el0_svc_common+0x138/0x258 [ 73.244722][ T5292] do_el0_svc+0x58/0x13c [ 73.245336][ T5292] el0_svc+0x58/0x138 [ 73.245938][ T5292] el0t_64_sync_handler+0x84/0xf0 [ 73.246646][ T5292] el0t_64_sync+0x18c/0x190 [ 73.247314][ T5292] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 73.249124][ T5292] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 73.428287][ T5077] blk_print_req_error: 4 callbacks suppressed [ 73.428326][ T5077] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 73.544202][ T5119] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.548062][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.549402][ T1703] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.935267][ T5322] loop1: detected capacity change from 0 to 32768 [ 73.948983][ T5322] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 73.950181][ T5322] CPU: 1 PID: 5322 Comm: syz.1.328 Not tainted syzkaller #0 [ 73.951338][ T5322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 73.952785][ T5322] Call trace: [ 73.953239][ T5322] dump_backtrace+0x1c8/0x1f4 [ 73.953957][ T5322] show_stack+0x2c/0x3c [ 73.954585][ T5322] __dump_stack+0x30/0x40 [ 73.955209][ T5322] dump_stack_lvl+0xf8/0x160 [ 73.955883][ T5322] dump_stack+0x1c/0x5c [ 73.956479][ T5322] sysfs_create_dir_ns+0x22c/0x24c [ 73.957211][ T5322] kobject_add_internal+0x5a8/0xb30 [ 73.957948][ T5322] kobject_init_and_add+0x118/0x17c [ 73.958698][ T5322] gfs2_sys_fs_add+0x1dc/0x3d8 [ 73.959367][ T5322] gfs2_fill_super+0xdec/0x19ec [ 73.960028][ T5322] get_tree_bdev+0x358/0x544 [ 73.960748][ T5322] gfs2_get_tree+0x54/0x1b4 [ 73.961414][ T5322] vfs_get_tree+0x90/0x274 [ 73.962084][ T5322] do_new_mount+0x228/0x810 [ 73.962760][ T5322] path_mount+0x5b4/0xe78 [ 73.963345][ T5322] __arm64_sys_mount+0x49c/0x584 [ 73.964031][ T5322] invoke_syscall+0x98/0x2bc [ 73.964648][ T5322] el0_svc_common+0x138/0x258 [ 73.965266][ T5322] do_el0_svc+0x58/0x13c [ 73.965892][ T5322] el0_svc+0x58/0x138 [ 73.966465][ T5322] el0t_64_sync_handler+0x84/0xf0 [ 73.967179][ T5322] el0t_64_sync+0x18c/0x190 [ 73.967893][ T5322] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 73.969694][ T5322] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 74.310306][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 74.311902][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.318317][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 74.319781][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.322234][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.323538][ T1576] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.328202][ T5119] device veth0_vlan entered promiscuous mode [ 74.460061][ T5119] device veth1_vlan entered promiscuous mode [ 74.478250][ T5119] device veth0_macvtap entered promiscuous mode [ 74.489369][ T4598] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.490952][ T4598] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.492321][ T4598] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 74.493609][ T4598] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.498143][ T4598] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.612760][ T5339] loop2: detected capacity change from 0 to 32768 [ 74.716930][ T5344] loop1: detected capacity change from 0 to 32768 [ 74.722033][ T5339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 74.723191][ T5339] CPU: 0 PID: 5339 Comm: syz.2.340 Not tainted syzkaller #0 [ 74.724310][ T5339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.725855][ T5339] Call trace: [ 74.726338][ T5339] dump_backtrace+0x1c8/0x1f4 [ 74.727016][ T5339] show_stack+0x2c/0x3c [ 74.727630][ T5339] __dump_stack+0x30/0x40 [ 74.728242][ T5339] dump_stack_lvl+0xf8/0x160 [ 74.728919][ T5339] dump_stack+0x1c/0x5c [ 74.729509][ T5339] sysfs_create_dir_ns+0x22c/0x24c [ 74.730340][ T5339] kobject_add_internal+0x5a8/0xb30 [ 74.731107][ T5339] kobject_init_and_add+0x118/0x17c [ 74.731860][ T5339] gfs2_sys_fs_add+0x1dc/0x3d8 [ 74.732588][ T5339] gfs2_fill_super+0xdec/0x19ec [ 74.733294][ T5339] get_tree_bdev+0x358/0x544 [ 74.733974][ T5339] gfs2_get_tree+0x54/0x1b4 [ 74.734665][ T5339] vfs_get_tree+0x90/0x274 [ 74.735308][ T5339] do_new_mount+0x228/0x810 [ 74.736003][ T5339] path_mount+0x5b4/0xe78 [ 74.736715][ T5339] __arm64_sys_mount+0x49c/0x584 [ 74.737549][ T5339] invoke_syscall+0x98/0x2bc [ 74.738306][ T5339] el0_svc_common+0x138/0x258 [ 74.739033][ T5339] do_el0_svc+0x58/0x13c [ 74.739674][ T5339] el0_svc+0x58/0x138 [ 74.740236][ T5339] el0t_64_sync_handler+0x84/0xf0 [ 74.740958][ T5339] el0t_64_sync+0x18c/0x190 [ 74.741732][ T5339] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 74.743572][ T5339] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 74.749283][ T5344] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 74.750555][ T5344] CPU: 0 PID: 5344 Comm: syz.1.342 Not tainted syzkaller #0 [ 74.751712][ T5344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 74.753248][ T5344] Call trace: [ 74.753752][ T5344] dump_backtrace+0x1c8/0x1f4 [ 74.754438][ T5344] show_stack+0x2c/0x3c [ 74.754768][ T5119] device veth1_macvtap entered promiscuous mode [ 74.755025][ T5344] __dump_stack+0x30/0x40 [ 74.755044][ T5344] dump_stack_lvl+0xf8/0x160 [ 74.757212][ T5344] dump_stack+0x1c/0x5c [ 74.757817][ T5344] sysfs_create_dir_ns+0x22c/0x24c [ 74.758544][ T5344] kobject_add_internal+0x5a8/0xb30 [ 74.759276][ T5344] kobject_init_and_add+0x118/0x17c [ 74.760015][ T5344] gfs2_sys_fs_add+0x1dc/0x3d8 [ 74.760672][ T5344] gfs2_fill_super+0xdec/0x19ec [ 74.761346][ T5344] get_tree_bdev+0x358/0x544 [ 74.762015][ T5344] gfs2_get_tree+0x54/0x1b4 [ 74.762671][ T5344] vfs_get_tree+0x90/0x274 [ 74.763350][ T5344] do_new_mount+0x228/0x810 [ 74.764030][ T5344] path_mount+0x5b4/0xe78 [ 74.764711][ T5344] __arm64_sys_mount+0x49c/0x584 [ 74.764987][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.765475][ T5344] invoke_syscall+0x98/0x2bc [ 74.765492][ T5344] el0_svc_common+0x138/0x258 [ 74.767116][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.767749][ T5344] do_el0_svc+0x58/0x13c [ 74.768412][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.769812][ T5344] el0_svc+0x58/0x138 [ 74.770441][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.771800][ T5344] el0t_64_sync_handler+0x84/0xf0 [ 74.772391][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.773711][ T5344] el0t_64_sync+0x18c/0x190 [ 74.774343][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.775860][ T5344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 74.776438][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.777666][ T5344] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 74.782795][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.784796][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 74.799796][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.802586][ T5119] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.805092][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.806657][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.808115][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.809639][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.811630][ T4381] Bluetooth: hci5: command 0x0419 tx timeout [ 74.812774][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.814396][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.815870][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.817409][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.818791][ T5119] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 74.820648][ T5119] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 74.822942][ T5119] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.825948][ T5119] netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.827191][ T5119] netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.828481][ T5119] netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.829796][ T5119] netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.852874][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.854649][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.856287][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.858050][ T4724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.874024][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.875208][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.876902][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.878094][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.880007][ T249] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 74.881698][ T249] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 74.995939][ T5349] loop0: detected capacity change from 0 to 32768 [ 75.004820][ T5349] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.006021][ T5349] CPU: 0 PID: 5349 Comm: syz.0.345 Not tainted syzkaller #0 [ 75.007163][ T5349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.008521][ T5349] Call trace: [ 75.009041][ T5349] dump_backtrace+0x1c8/0x1f4 [ 75.009728][ T5349] show_stack+0x2c/0x3c [ 75.010387][ T5349] __dump_stack+0x30/0x40 [ 75.011089][ T5349] dump_stack_lvl+0xf8/0x160 [ 75.011857][ T5349] dump_stack+0x1c/0x5c [ 75.012515][ T5349] sysfs_create_dir_ns+0x22c/0x24c [ 75.013276][ T5349] kobject_add_internal+0x5a8/0xb30 [ 75.014069][ T5349] kobject_init_and_add+0x118/0x17c [ 75.014854][ T5349] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.015537][ T5349] gfs2_fill_super+0xdec/0x19ec [ 75.016270][ T5349] get_tree_bdev+0x358/0x544 [ 75.016969][ T5349] gfs2_get_tree+0x54/0x1b4 [ 75.017649][ T5349] vfs_get_tree+0x90/0x274 [ 75.018307][ T5349] do_new_mount+0x228/0x810 [ 75.018933][ T5349] path_mount+0x5b4/0xe78 [ 75.019569][ T5349] __arm64_sys_mount+0x49c/0x584 [ 75.020277][ T5349] invoke_syscall+0x98/0x2bc [ 75.021032][ T5349] el0_svc_common+0x138/0x258 [ 75.021765][ T5349] do_el0_svc+0x58/0x13c [ 75.022428][ T5349] el0_svc+0x58/0x138 [ 75.023105][ T5349] el0t_64_sync_handler+0x84/0xf0 [ 75.023874][ T5349] el0t_64_sync+0x18c/0x190 [ 75.024623][ T5349] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.026530][ T5349] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.096325][ T5351] loop1: detected capacity change from 0 to 32768 [ 75.098039][ T5351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.099165][ T5351] CPU: 1 PID: 5351 Comm: syz.1.347 Not tainted syzkaller #0 [ 75.100277][ T5351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.101797][ T5351] Call trace: [ 75.102313][ T5351] dump_backtrace+0x1c8/0x1f4 [ 75.102964][ T5351] show_stack+0x2c/0x3c [ 75.103553][ T5351] __dump_stack+0x30/0x40 [ 75.104168][ T5351] dump_stack_lvl+0xf8/0x160 [ 75.104812][ T5351] dump_stack+0x1c/0x5c [ 75.105392][ T5351] sysfs_create_dir_ns+0x22c/0x24c [ 75.106150][ T5351] kobject_add_internal+0x5a8/0xb30 [ 75.106905][ T5351] kobject_init_and_add+0x118/0x17c [ 75.107636][ T5351] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.108268][ T5351] gfs2_fill_super+0xdec/0x19ec [ 75.108963][ T5351] get_tree_bdev+0x358/0x544 [ 75.109639][ T5351] gfs2_get_tree+0x54/0x1b4 [ 75.110355][ T5351] vfs_get_tree+0x90/0x274 [ 75.110963][ T5351] do_new_mount+0x228/0x810 [ 75.111619][ T5351] path_mount+0x5b4/0xe78 [ 75.112243][ T5351] __arm64_sys_mount+0x49c/0x584 [ 75.112984][ T5351] invoke_syscall+0x98/0x2bc [ 75.113638][ T5351] el0_svc_common+0x138/0x258 [ 75.114277][ T5351] do_el0_svc+0x58/0x13c [ 75.114891][ T5351] el0_svc+0x58/0x138 [ 75.115483][ T5351] el0t_64_sync_handler+0x84/0xf0 [ 75.116156][ T5351] el0t_64_sync+0x18c/0x190 [ 75.116934][ T5351] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.118732][ T5351] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.266231][ T5355] loop4: detected capacity change from 0 to 32768 [ 75.268421][ T5355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.269586][ T5355] CPU: 0 PID: 5355 Comm: syz.4.348 Not tainted syzkaller #0 [ 75.270788][ T5355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.272353][ T5355] Call trace: [ 75.272844][ T5355] dump_backtrace+0x1c8/0x1f4 [ 75.273527][ T5355] show_stack+0x2c/0x3c [ 75.274107][ T5355] __dump_stack+0x30/0x40 [ 75.274836][ T5355] dump_stack_lvl+0xf8/0x160 [ 75.275576][ T5355] dump_stack+0x1c/0x5c [ 75.276157][ T5355] sysfs_create_dir_ns+0x22c/0x24c [ 75.276919][ T5355] kobject_add_internal+0x5a8/0xb30 [ 75.277684][ T5355] kobject_init_and_add+0x118/0x17c [ 75.278418][ T5355] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.279164][ T5355] gfs2_fill_super+0xdec/0x19ec [ 75.279862][ T5355] get_tree_bdev+0x358/0x544 [ 75.280575][ T5355] gfs2_get_tree+0x54/0x1b4 [ 75.281256][ T5355] vfs_get_tree+0x90/0x274 [ 75.281906][ T5355] do_new_mount+0x228/0x810 [ 75.282612][ T5355] path_mount+0x5b4/0xe78 [ 75.283270][ T5355] __arm64_sys_mount+0x49c/0x584 [ 75.283964][ T5355] invoke_syscall+0x98/0x2bc [ 75.284613][ T5355] el0_svc_common+0x138/0x258 [ 75.285312][ T5355] do_el0_svc+0x58/0x13c [ 75.285917][ T5355] el0_svc+0x58/0x138 [ 75.286556][ T5355] el0t_64_sync_handler+0x84/0xf0 [ 75.287335][ T5355] el0t_64_sync+0x18c/0x190 [ 75.288016][ T5355] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.289991][ T5355] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:01:15 executed programs: 341 [ 75.416909][ T5358] loop1: detected capacity change from 0 to 32768 [ 75.523668][ T5364] loop5: detected capacity change from 0 to 32768 [ 75.531290][ T4555] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 75.552537][ T5358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.552585][ T5364] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.553681][ T5358] CPU: 1 PID: 5358 Comm: syz.1.350 Not tainted syzkaller #0 [ 75.555972][ T5358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.557356][ T5358] Call trace: [ 75.557886][ T5358] dump_backtrace+0x1c8/0x1f4 [ 75.558572][ T5358] show_stack+0x2c/0x3c [ 75.559180][ T5358] __dump_stack+0x30/0x40 [ 75.559842][ T5358] dump_stack_lvl+0xf8/0x160 [ 75.560535][ T5358] dump_stack+0x1c/0x5c [ 75.561163][ T5358] sysfs_create_dir_ns+0x22c/0x24c [ 75.561879][ T5358] kobject_add_internal+0x5a8/0xb30 [ 75.562602][ T5358] kobject_init_and_add+0x118/0x17c [ 75.563352][ T5358] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.564009][ T5358] gfs2_fill_super+0xdec/0x19ec [ 75.564756][ T5358] get_tree_bdev+0x358/0x544 [ 75.565553][ T5358] gfs2_get_tree+0x54/0x1b4 [ 75.566308][ T5358] vfs_get_tree+0x90/0x274 [ 75.567042][ T5358] do_new_mount+0x228/0x810 [ 75.567706][ T5358] path_mount+0x5b4/0xe78 [ 75.568371][ T5358] __arm64_sys_mount+0x49c/0x584 [ 75.569098][ T5358] invoke_syscall+0x98/0x2bc [ 75.569738][ T5358] el0_svc_common+0x138/0x258 [ 75.570429][ T5358] do_el0_svc+0x58/0x13c [ 75.571084][ T5358] el0_svc+0x58/0x138 [ 75.571665][ T5358] el0t_64_sync_handler+0x84/0xf0 [ 75.572432][ T5358] el0t_64_sync+0x18c/0x190 [ 75.573151][ T5364] CPU: 0 PID: 5364 Comm: syz.5.247 Not tainted syzkaller #0 [ 75.573303][ T5358] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.574249][ T5364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.576219][ T5358] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.577600][ T5364] Call trace: [ 75.578962][ T5364] dump_backtrace+0x1c8/0x1f4 [ 75.579584][ T5364] show_stack+0x2c/0x3c [ 75.580212][ T5364] __dump_stack+0x30/0x40 [ 75.580786][ T5364] dump_stack_lvl+0xf8/0x160 [ 75.581428][ T5364] dump_stack+0x1c/0x5c [ 75.582024][ T5364] sysfs_create_dir_ns+0x22c/0x24c [ 75.582783][ T5364] kobject_add_internal+0x5a8/0xb30 [ 75.583592][ T5364] kobject_init_and_add+0x118/0x17c [ 75.584332][ T5364] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.584986][ T5364] gfs2_fill_super+0xdec/0x19ec [ 75.585644][ T5364] get_tree_bdev+0x358/0x544 [ 75.586321][ T5364] gfs2_get_tree+0x54/0x1b4 [ 75.586983][ T5364] vfs_get_tree+0x90/0x274 [ 75.587676][ T5364] do_new_mount+0x228/0x810 [ 75.588408][ T5364] path_mount+0x5b4/0xe78 [ 75.588990][ T5364] __arm64_sys_mount+0x49c/0x584 [ 75.589748][ T5364] invoke_syscall+0x98/0x2bc [ 75.590473][ T5364] el0_svc_common+0x138/0x258 [ 75.591225][ T5364] do_el0_svc+0x58/0x13c [ 75.591815][ T5364] el0_svc+0x58/0x138 [ 75.592359][ T5364] el0t_64_sync_handler+0x84/0xf0 [ 75.593134][ T5364] el0t_64_sync+0x18c/0x190 [ 75.593858][ T5364] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.595770][ T5364] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.720146][ T5368] loop4: detected capacity change from 0 to 32768 [ 75.756695][ T5368] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.757814][ T5368] CPU: 1 PID: 5368 Comm: syz.4.354 Not tainted syzkaller #0 [ 75.758841][ T5368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.760339][ T5368] Call trace: [ 75.760856][ T5368] dump_backtrace+0x1c8/0x1f4 [ 75.761588][ T5368] show_stack+0x2c/0x3c [ 75.762224][ T5368] __dump_stack+0x30/0x40 [ 75.762839][ T5368] dump_stack_lvl+0xf8/0x160 [ 75.763462][ T5368] dump_stack+0x1c/0x5c [ 75.764046][ T5368] sysfs_create_dir_ns+0x22c/0x24c [ 75.764789][ T5368] kobject_add_internal+0x5a8/0xb30 [ 75.765585][ T5368] kobject_init_and_add+0x118/0x17c [ 75.766328][ T5368] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.767000][ T5368] gfs2_fill_super+0xdec/0x19ec [ 75.767675][ T5368] get_tree_bdev+0x358/0x544 [ 75.768384][ T5368] gfs2_get_tree+0x54/0x1b4 [ 75.769051][ T5368] vfs_get_tree+0x90/0x274 [ 75.769641][ T5368] do_new_mount+0x228/0x810 [ 75.770334][ T5368] path_mount+0x5b4/0xe78 [ 75.770957][ T5368] __arm64_sys_mount+0x49c/0x584 [ 75.771747][ T5368] invoke_syscall+0x98/0x2bc [ 75.772445][ T5368] el0_svc_common+0x138/0x258 [ 75.773146][ T5368] do_el0_svc+0x58/0x13c [ 75.773794][ T5368] el0_svc+0x58/0x138 [ 75.774423][ T5368] el0t_64_sync_handler+0x84/0xf0 [ 75.775125][ T5368] el0t_64_sync+0x18c/0x190 [ 75.775871][ T5368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.777654][ T5368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.863603][ T5370] loop1: detected capacity change from 0 to 32768 [ 75.869594][ T5370] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 75.870831][ T5370] CPU: 0 PID: 5370 Comm: syz.1.352 Not tainted syzkaller #0 [ 75.871911][ T5370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 75.873409][ T5370] Call trace: [ 75.873915][ T5370] dump_backtrace+0x1c8/0x1f4 [ 75.874605][ T5370] show_stack+0x2c/0x3c [ 75.875245][ T5370] __dump_stack+0x30/0x40 [ 75.875852][ T5370] dump_stack_lvl+0xf8/0x160 [ 75.876523][ T5370] dump_stack+0x1c/0x5c [ 75.877094][ T5370] sysfs_create_dir_ns+0x22c/0x24c [ 75.877819][ T5370] kobject_add_internal+0x5a8/0xb30 [ 75.878559][ T5370] kobject_init_and_add+0x118/0x17c [ 75.879316][ T5370] gfs2_sys_fs_add+0x1dc/0x3d8 [ 75.880007][ T5370] gfs2_fill_super+0xdec/0x19ec [ 75.880685][ T5370] get_tree_bdev+0x358/0x544 [ 75.881370][ T5370] gfs2_get_tree+0x54/0x1b4 [ 75.882014][ T5370] vfs_get_tree+0x90/0x274 [ 75.882669][ T5370] do_new_mount+0x228/0x810 [ 75.883305][ T5370] path_mount+0x5b4/0xe78 [ 75.883903][ T5370] __arm64_sys_mount+0x49c/0x584 [ 75.884616][ T5370] invoke_syscall+0x98/0x2bc [ 75.885283][ T5370] el0_svc_common+0x138/0x258 [ 75.885955][ T5370] do_el0_svc+0x58/0x13c [ 75.886551][ T5370] el0_svc+0x58/0x138 [ 75.887105][ T5370] el0t_64_sync_handler+0x84/0xf0 [ 75.887859][ T5370] el0t_64_sync+0x18c/0x190 [ 75.888522][ T5370] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 75.890283][ T5370] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 75.944155][ T4341] I/O error, dev loop5, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 76.080438][ T5376] loop1: detected capacity change from 0 to 32768 [ 76.089353][ T5376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.090625][ T5376] CPU: 1 PID: 5376 Comm: syz.1.357 Not tainted syzkaller #0 [ 76.091630][ T5376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.093091][ T5376] Call trace: [ 76.093584][ T5376] dump_backtrace+0x1c8/0x1f4 [ 76.094335][ T5376] show_stack+0x2c/0x3c [ 76.094972][ T5376] __dump_stack+0x30/0x40 [ 76.095581][ T5376] dump_stack_lvl+0xf8/0x160 [ 76.096282][ T5376] dump_stack+0x1c/0x5c [ 76.096912][ T5376] sysfs_create_dir_ns+0x22c/0x24c [ 76.097659][ T5376] kobject_add_internal+0x5a8/0xb30 [ 76.098414][ T5376] kobject_init_and_add+0x118/0x17c [ 76.099114][ T5376] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.099802][ T5376] gfs2_fill_super+0xdec/0x19ec [ 76.100563][ T5376] get_tree_bdev+0x358/0x544 [ 76.101232][ T5376] gfs2_get_tree+0x54/0x1b4 [ 76.101870][ T5376] vfs_get_tree+0x90/0x274 [ 76.102568][ T5376] do_new_mount+0x228/0x810 [ 76.103291][ T5376] path_mount+0x5b4/0xe78 [ 76.103888][ T5376] __arm64_sys_mount+0x49c/0x584 [ 76.104570][ T5376] invoke_syscall+0x98/0x2bc [ 76.105226][ T5376] el0_svc_common+0x138/0x258 [ 76.105915][ T5376] do_el0_svc+0x58/0x13c [ 76.106558][ T5376] el0_svc+0x58/0x138 [ 76.107138][ T5376] el0t_64_sync_handler+0x84/0xf0 [ 76.107826][ T5376] el0t_64_sync+0x18c/0x190 [ 76.108537][ T5376] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.110264][ T5376] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.192482][ T5378] loop5: detected capacity change from 0 to 32768 [ 76.200822][ T5378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.201987][ T5378] CPU: 0 PID: 5378 Comm: syz.5.358 Not tainted syzkaller #0 [ 76.203172][ T5378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.204687][ T5378] Call trace: [ 76.205225][ T5378] dump_backtrace+0x1c8/0x1f4 [ 76.205952][ T5378] show_stack+0x2c/0x3c [ 76.206580][ T5378] __dump_stack+0x30/0x40 [ 76.207251][ T5378] dump_stack_lvl+0xf8/0x160 [ 76.207892][ T5378] dump_stack+0x1c/0x5c [ 76.208437][ T5378] sysfs_create_dir_ns+0x22c/0x24c [ 76.209178][ T5378] kobject_add_internal+0x5a8/0xb30 [ 76.209869][ T5378] kobject_init_and_add+0x118/0x17c [ 76.210615][ T5378] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.211332][ T5378] gfs2_fill_super+0xdec/0x19ec [ 76.212078][ T5378] get_tree_bdev+0x358/0x544 [ 76.212741][ T5378] gfs2_get_tree+0x54/0x1b4 [ 76.213416][ T5378] vfs_get_tree+0x90/0x274 [ 76.214069][ T5378] do_new_mount+0x228/0x810 [ 76.214696][ T5378] path_mount+0x5b4/0xe78 [ 76.215397][ T5378] __arm64_sys_mount+0x49c/0x584 [ 76.216185][ T5378] invoke_syscall+0x98/0x2bc [ 76.216870][ T5378] el0_svc_common+0x138/0x258 [ 76.217562][ T5378] do_el0_svc+0x58/0x13c [ 76.218178][ T5378] el0_svc+0x58/0x138 [ 76.218815][ T5378] el0t_64_sync_handler+0x84/0xf0 [ 76.219636][ T5378] el0t_64_sync+0x18c/0x190 [ 76.220425][ T5378] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.222308][ T5378] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.377608][ T5361] loop0: detected capacity change from 0 to 32768 [ 76.448209][ T5077] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 76.454296][ T5361] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.455462][ T5361] CPU: 0 PID: 5361 Comm: syz.0.349 Not tainted syzkaller #0 [ 76.456519][ T5361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.457876][ T5361] Call trace: [ 76.458375][ T5361] dump_backtrace+0x1c8/0x1f4 [ 76.459058][ T5361] show_stack+0x2c/0x3c [ 76.459625][ T5361] __dump_stack+0x30/0x40 [ 76.460208][ T5361] dump_stack_lvl+0xf8/0x160 [ 76.460829][ T5361] dump_stack+0x1c/0x5c [ 76.461444][ T5361] sysfs_create_dir_ns+0x22c/0x24c [ 76.462154][ T5361] kobject_add_internal+0x5a8/0xb30 [ 76.462949][ T5361] kobject_init_and_add+0x118/0x17c [ 76.463689][ T5361] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.464366][ T5361] gfs2_fill_super+0xdec/0x19ec [ 76.465092][ T5361] get_tree_bdev+0x358/0x544 [ 76.465741][ T5361] gfs2_get_tree+0x54/0x1b4 [ 76.466427][ T5361] vfs_get_tree+0x90/0x274 [ 76.467043][ T5361] do_new_mount+0x228/0x810 [ 76.467776][ T5361] path_mount+0x5b4/0xe78 [ 76.468399][ T5361] __arm64_sys_mount+0x49c/0x584 [ 76.469107][ T5361] invoke_syscall+0x98/0x2bc [ 76.469800][ T5361] el0_svc_common+0x138/0x258 [ 76.470509][ T5361] do_el0_svc+0x58/0x13c [ 76.471109][ T5361] el0_svc+0x58/0x138 [ 76.471668][ T5361] el0t_64_sync_handler+0x84/0xf0 [ 76.472397][ T5361] el0t_64_sync+0x18c/0x190 [ 76.529596][ T5361] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.535481][ T5361] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.592392][ T5388] loop4: detected capacity change from 0 to 32768 [ 76.602569][ T5388] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.603789][ T5388] CPU: 0 PID: 5388 Comm: syz.4.363 Not tainted syzkaller #0 [ 76.604921][ T5388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.606368][ T5388] Call trace: [ 76.606822][ T5388] dump_backtrace+0x1c8/0x1f4 [ 76.607466][ T5388] show_stack+0x2c/0x3c [ 76.608076][ T5388] __dump_stack+0x30/0x40 [ 76.608718][ T5388] dump_stack_lvl+0xf8/0x160 [ 76.609382][ T5388] dump_stack+0x1c/0x5c [ 76.610019][ T5388] sysfs_create_dir_ns+0x22c/0x24c [ 76.610778][ T5388] kobject_add_internal+0x5a8/0xb30 [ 76.611556][ T5388] kobject_init_and_add+0x118/0x17c [ 76.612374][ T5388] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.613060][ T5388] gfs2_fill_super+0xdec/0x19ec [ 76.613713][ T5388] get_tree_bdev+0x358/0x544 [ 76.614387][ T5388] gfs2_get_tree+0x54/0x1b4 [ 76.615040][ T5388] vfs_get_tree+0x90/0x274 [ 76.615622][ T5388] do_new_mount+0x228/0x810 [ 76.616279][ T5388] path_mount+0x5b4/0xe78 [ 76.616858][ T5388] __arm64_sys_mount+0x49c/0x584 [ 76.617615][ T5388] invoke_syscall+0x98/0x2bc [ 76.618288][ T5388] el0_svc_common+0x138/0x258 [ 76.618975][ T5388] do_el0_svc+0x58/0x13c [ 76.619575][ T5388] el0_svc+0x58/0x138 [ 76.620147][ T5388] el0t_64_sync_handler+0x84/0xf0 [ 76.620854][ T5388] el0t_64_sync+0x18c/0x190 [ 76.621517][ T5388] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.623302][ T5388] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.664813][ T5386] loop1: detected capacity change from 0 to 32768 [ 76.667392][ T5386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.668479][ T5386] CPU: 1 PID: 5386 Comm: syz.1.362 Not tainted syzkaller #0 [ 76.669584][ T5386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.671014][ T5386] Call trace: [ 76.671529][ T5386] dump_backtrace+0x1c8/0x1f4 [ 76.672201][ T5386] show_stack+0x2c/0x3c [ 76.672875][ T5386] __dump_stack+0x30/0x40 [ 76.673493][ T5386] dump_stack_lvl+0xf8/0x160 [ 76.674221][ T5386] dump_stack+0x1c/0x5c [ 76.674845][ T5386] sysfs_create_dir_ns+0x22c/0x24c [ 76.675570][ T5386] kobject_add_internal+0x5a8/0xb30 [ 76.676275][ T5386] kobject_init_and_add+0x118/0x17c [ 76.677040][ T5386] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.677718][ T5386] gfs2_fill_super+0xdec/0x19ec [ 76.678379][ T5386] get_tree_bdev+0x358/0x544 [ 76.679017][ T5386] gfs2_get_tree+0x54/0x1b4 [ 76.679644][ T5386] vfs_get_tree+0x90/0x274 [ 76.680249][ T5386] do_new_mount+0x228/0x810 [ 76.680865][ T5386] path_mount+0x5b4/0xe78 [ 76.681490][ T5386] __arm64_sys_mount+0x49c/0x584 [ 76.682211][ T5386] invoke_syscall+0x98/0x2bc [ 76.682935][ T5386] el0_svc_common+0x138/0x258 [ 76.683632][ T5386] do_el0_svc+0x58/0x13c [ 76.684249][ T5386] el0_svc+0x58/0x138 [ 76.684781][ T5386] el0t_64_sync_handler+0x84/0xf0 [ 76.685559][ T5386] el0t_64_sync+0x18c/0x190 [ 76.686277][ T5386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.688071][ T5386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.771596][ T5390] loop2: detected capacity change from 0 to 32768 [ 76.820300][ T5390] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.821619][ T5390] CPU: 0 PID: 5390 Comm: syz.2.364 Not tainted syzkaller #0 [ 76.822733][ T5390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.824232][ T5390] Call trace: [ 76.824783][ T5390] dump_backtrace+0x1c8/0x1f4 [ 76.825517][ T5390] show_stack+0x2c/0x3c [ 76.826146][ T5390] __dump_stack+0x30/0x40 [ 76.826825][ T5390] dump_stack_lvl+0xf8/0x160 [ 76.827564][ T5390] dump_stack+0x1c/0x5c [ 76.828177][ T5390] sysfs_create_dir_ns+0x22c/0x24c [ 76.828898][ T5390] kobject_add_internal+0x5a8/0xb30 [ 76.829680][ T5390] kobject_init_and_add+0x118/0x17c [ 76.830446][ T5390] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.831090][ T5390] gfs2_fill_super+0xdec/0x19ec [ 76.831754][ T5390] get_tree_bdev+0x358/0x544 [ 76.832400][ T5390] gfs2_get_tree+0x54/0x1b4 [ 76.833058][ T5390] vfs_get_tree+0x90/0x274 [ 76.833714][ T5390] do_new_mount+0x228/0x810 [ 76.834362][ T5390] path_mount+0x5b4/0xe78 [ 76.834969][ T5390] __arm64_sys_mount+0x49c/0x584 [ 76.835667][ T5390] invoke_syscall+0x98/0x2bc [ 76.836307][ T5390] el0_svc_common+0x138/0x258 [ 76.836940][ T5390] do_el0_svc+0x58/0x13c [ 76.837460][ T5390] el0_svc+0x58/0x138 [ 76.837995][ T5390] el0t_64_sync_handler+0x84/0xf0 [ 76.838735][ T5390] el0t_64_sync+0x18c/0x190 [ 76.839460][ T5390] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.841380][ T5390] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.842084][ T5392] loop5: detected capacity change from 0 to 32768 [ 76.866403][ T5392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 76.867540][ T5392] CPU: 1 PID: 5392 Comm: syz.5.365 Not tainted syzkaller #0 [ 76.868613][ T5392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 76.870112][ T5392] Call trace: [ 76.870660][ T5392] dump_backtrace+0x1c8/0x1f4 [ 76.871395][ T5392] show_stack+0x2c/0x3c [ 76.872022][ T5392] __dump_stack+0x30/0x40 [ 76.872665][ T5392] dump_stack_lvl+0xf8/0x160 [ 76.873345][ T5392] dump_stack+0x1c/0x5c [ 76.873960][ T5392] sysfs_create_dir_ns+0x22c/0x24c [ 76.874700][ T5392] kobject_add_internal+0x5a8/0xb30 [ 76.875443][ T5392] kobject_init_and_add+0x118/0x17c [ 76.876199][ T5392] gfs2_sys_fs_add+0x1dc/0x3d8 [ 76.876882][ T5392] gfs2_fill_super+0xdec/0x19ec [ 76.877556][ T5392] get_tree_bdev+0x358/0x544 [ 76.878209][ T5392] gfs2_get_tree+0x54/0x1b4 [ 76.878808][ T5392] vfs_get_tree+0x90/0x274 [ 76.879423][ T5392] do_new_mount+0x228/0x810 [ 76.880031][ T5392] path_mount+0x5b4/0xe78 [ 76.880640][ T5392] __arm64_sys_mount+0x49c/0x584 [ 76.881411][ T5392] invoke_syscall+0x98/0x2bc [ 76.882122][ T5392] el0_svc_common+0x138/0x258 [ 76.882789][ T5392] do_el0_svc+0x58/0x13c [ 76.883405][ T5392] el0_svc+0x58/0x138 [ 76.884011][ T5392] el0t_64_sync_handler+0x84/0xf0 [ 76.884771][ T5392] el0t_64_sync+0x18c/0x190 [ 76.885518][ T5392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 76.887295][ T5392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 76.888550][ T4555] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 76.994671][ T5395] loop1: detected capacity change from 0 to 32768 [ 76.999351][ T5395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 77.000469][ T5395] CPU: 0 PID: 5395 Comm: syz.1.367 Not tainted syzkaller #0 [ 77.001483][ T5395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.002941][ T5395] Call trace: [ 77.003386][ T5395] dump_backtrace+0x1c8/0x1f4 [ 77.004092][ T5395] show_stack+0x2c/0x3c [ 77.004729][ T5395] __dump_stack+0x30/0x40 [ 77.005410][ T5395] dump_stack_lvl+0xf8/0x160 [ 77.006063][ T5395] dump_stack+0x1c/0x5c [ 77.006641][ T5395] sysfs_create_dir_ns+0x22c/0x24c [ 77.007401][ T5395] kobject_add_internal+0x5a8/0xb30 [ 77.008190][ T5395] kobject_init_and_add+0x118/0x17c [ 77.008997][ T5395] gfs2_sys_fs_add+0x1dc/0x3d8 [ 77.009706][ T5395] gfs2_fill_super+0xdec/0x19ec [ 77.010427][ T5395] get_tree_bdev+0x358/0x544 [ 77.011102][ T5395] gfs2_get_tree+0x54/0x1b4 [ 77.011774][ T5395] vfs_get_tree+0x90/0x274 [ 77.012501][ T5395] do_new_mount+0x228/0x810 [ 77.013210][ T5395] path_mount+0x5b4/0xe78 [ 77.013842][ T5395] __arm64_sys_mount+0x49c/0x584 [ 77.014566][ T5395] invoke_syscall+0x98/0x2bc [ 77.015248][ T5395] el0_svc_common+0x138/0x258 [ 77.015928][ T5395] do_el0_svc+0x58/0x13c [ 77.016503][ T5395] el0_svc+0x58/0x138 [ 77.017027][ T5395] el0t_64_sync_handler+0x84/0xf0 [ 77.017746][ T5395] el0t_64_sync+0x18c/0x190 [ 77.018507][ T5395] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 77.020269][ T5395] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 77.154173][ T5397] loop4: detected capacity change from 0 to 32768 [ 77.155938][ T5397] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 77.157073][ T5397] CPU: 1 PID: 5397 Comm: syz.4.368 Not tainted syzkaller #0 [ 77.158120][ T5397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.159568][ T5397] Call trace: [ 77.160022][ T5397] dump_backtrace+0x1c8/0x1f4 [ 77.160715][ T5397] show_stack+0x2c/0x3c [ 77.161391][ T5397] __dump_stack+0x30/0x40 [ 77.161986][ T5397] dump_stack_lvl+0xf8/0x160 [ 77.162619][ T5397] dump_stack+0x1c/0x5c [ 77.163249][ T5397] sysfs_create_dir_ns+0x22c/0x24c [ 77.164023][ T5397] kobject_add_internal+0x5a8/0xb30 [ 77.164797][ T5397] kobject_init_and_add+0x118/0x17c [ 77.165556][ T5397] gfs2_sys_fs_add+0x1dc/0x3d8 [ 77.166243][ T5397] gfs2_fill_super+0xdec/0x19ec [ 77.167034][ T5397] get_tree_bdev+0x358/0x544 [ 77.167775][ T5397] gfs2_get_tree+0x54/0x1b4 [ 77.168542][ T5397] vfs_get_tree+0x90/0x274 [ 77.169296][ T5397] do_new_mount+0x228/0x810 [ 77.170096][ T5397] path_mount+0x5b4/0xe78 [ 77.170844][ T5397] __arm64_sys_mount+0x49c/0x584 [ 77.171684][ T5397] invoke_syscall+0x98/0x2bc [ 77.172346][ T5397] el0_svc_common+0x138/0x258 [ 77.173060][ T5397] do_el0_svc+0x58/0x13c [ 77.173683][ T5397] el0_svc+0x58/0x138 [ 77.174258][ T5397] el0t_64_sync_handler+0x84/0xf0 [ 77.174978][ T5397] el0t_64_sync+0x18c/0x190 [ 77.175824][ T5397] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 77.177707][ T5397] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 77.458048][ T4341] I/O error, dev loop5, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 77.725672][ T5412] loop5: detected capacity change from 0 to 32768 [ 77.737747][ T5412] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 77.738962][ T5412] CPU: 0 PID: 5412 Comm: syz.5.374 Not tainted syzkaller #0 [ 77.740156][ T5412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 77.741694][ T5412] Call trace: [ 77.742192][ T5412] dump_backtrace+0x1c8/0x1f4 [ 77.742881][ T5412] show_stack+0x2c/0x3c [ 77.743477][ T5412] __dump_stack+0x30/0x40 [ 77.744107][ T5412] dump_stack_lvl+0xf8/0x160 [ 77.744778][ T5412] dump_stack+0x1c/0x5c [ 77.745387][ T5412] sysfs_create_dir_ns+0x22c/0x24c [ 77.746123][ T5412] kobject_add_internal+0x5a8/0xb30 [ 77.746862][ T5412] kobject_init_and_add+0x118/0x17c [ 77.747617][ T5412] gfs2_sys_fs_add+0x1dc/0x3d8 [ 77.748292][ T5412] gfs2_fill_super+0xdec/0x19ec [ 77.748991][ T5412] get_tree_bdev+0x358/0x544 [ 77.749648][ T5412] gfs2_get_tree+0x54/0x1b4 [ 77.750327][ T5412] vfs_get_tree+0x90/0x274 [ 77.750991][ T5412] do_new_mount+0x228/0x810 [ 77.751660][ T5412] path_mount+0x5b4/0xe78 [ 77.752336][ T5412] __arm64_sys_mount+0x49c/0x584 [ 77.753028][ T5412] invoke_syscall+0x98/0x2bc [ 77.753723][ T5412] el0_svc_common+0x138/0x258 [ 77.754430][ T5412] do_el0_svc+0x58/0x13c [ 77.755046][ T5412] el0_svc+0x58/0x138 [ 77.755603][ T5412] el0t_64_sync_handler+0x84/0xf0 [ 77.756295][ T5412] el0t_64_sync+0x18c/0x190 [ 77.757039][ T5412] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 77.758832][ T5412] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.035598][ T5422] loop5: detected capacity change from 0 to 32768 [ 78.046316][ T5422] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.047450][ T5422] CPU: 1 PID: 5422 Comm: syz.5.381 Not tainted syzkaller #0 [ 78.048538][ T5422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.050039][ T5422] Call trace: [ 78.050536][ T5422] dump_backtrace+0x1c8/0x1f4 [ 78.051270][ T5422] show_stack+0x2c/0x3c [ 78.051847][ T5422] __dump_stack+0x30/0x40 [ 78.052506][ T5422] dump_stack_lvl+0xf8/0x160 [ 78.053189][ T5422] dump_stack+0x1c/0x5c [ 78.053808][ T5422] sysfs_create_dir_ns+0x22c/0x24c [ 78.054546][ T5422] kobject_add_internal+0x5a8/0xb30 [ 78.055309][ T5422] kobject_init_and_add+0x118/0x17c [ 78.056045][ T5422] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.056734][ T5422] gfs2_fill_super+0xdec/0x19ec [ 78.057443][ T5422] get_tree_bdev+0x358/0x544 [ 78.058086][ T5422] gfs2_get_tree+0x54/0x1b4 [ 78.058697][ T5422] vfs_get_tree+0x90/0x274 [ 78.059396][ T5422] do_new_mount+0x228/0x810 [ 78.060077][ T5422] path_mount+0x5b4/0xe78 [ 78.060790][ T5422] __arm64_sys_mount+0x49c/0x584 [ 78.061600][ T5422] invoke_syscall+0x98/0x2bc [ 78.062322][ T5422] el0_svc_common+0x138/0x258 [ 78.063074][ T5422] do_el0_svc+0x58/0x13c [ 78.063714][ T5422] el0_svc+0x58/0x138 [ 78.064357][ T5422] el0t_64_sync_handler+0x84/0xf0 [ 78.065114][ T5422] el0t_64_sync+0x18c/0x190 [ 78.065884][ T5422] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.067642][ T5422] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.325417][ T5434] loop0: detected capacity change from 0 to 32768 [ 78.359891][ T5434] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.361168][ T5434] CPU: 0 PID: 5434 Comm: syz.0.382 Not tainted syzkaller #0 [ 78.362342][ T5434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.363870][ T5434] Call trace: [ 78.364386][ T5434] dump_backtrace+0x1c8/0x1f4 [ 78.365071][ T5434] show_stack+0x2c/0x3c [ 78.365667][ T5434] __dump_stack+0x30/0x40 [ 78.366292][ T5434] dump_stack_lvl+0xf8/0x160 [ 78.367032][ T5434] dump_stack+0x1c/0x5c [ 78.367607][ T5434] sysfs_create_dir_ns+0x22c/0x24c [ 78.368297][ T5434] kobject_add_internal+0x5a8/0xb30 [ 78.369020][ T5434] kobject_init_and_add+0x118/0x17c [ 78.369826][ T5434] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.370540][ T5434] gfs2_fill_super+0xdec/0x19ec [ 78.371290][ T5434] get_tree_bdev+0x358/0x544 [ 78.371989][ T5434] gfs2_get_tree+0x54/0x1b4 [ 78.372621][ T5434] vfs_get_tree+0x90/0x274 [ 78.373280][ T5434] do_new_mount+0x228/0x810 [ 78.373952][ T5434] path_mount+0x5b4/0xe78 [ 78.374598][ T5434] __arm64_sys_mount+0x49c/0x584 [ 78.375338][ T5434] invoke_syscall+0x98/0x2bc [ 78.375962][ T5434] el0_svc_common+0x138/0x258 [ 78.376655][ T5434] do_el0_svc+0x58/0x13c [ 78.377290][ T5434] el0_svc+0x58/0x138 [ 78.377915][ T5434] el0t_64_sync_handler+0x84/0xf0 [ 78.378714][ T5434] el0t_64_sync+0x18c/0x190 [ 78.379501][ T5434] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.381428][ T5434] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.486193][ T5438] loop5: detected capacity change from 0 to 32768 [ 78.518941][ T5438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.520050][ T5438] CPU: 0 PID: 5438 Comm: syz.5.388 Not tainted syzkaller #0 [ 78.521274][ T5438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.522824][ T5438] Call trace: [ 78.523337][ T5438] dump_backtrace+0x1c8/0x1f4 [ 78.524115][ T5438] show_stack+0x2c/0x3c [ 78.524777][ T5438] __dump_stack+0x30/0x40 [ 78.525459][ T5438] dump_stack_lvl+0xf8/0x160 [ 78.526234][ T5438] dump_stack+0x1c/0x5c [ 78.526876][ T5438] sysfs_create_dir_ns+0x22c/0x24c [ 78.527642][ T5438] kobject_add_internal+0x5a8/0xb30 [ 78.528425][ T5438] kobject_init_and_add+0x118/0x17c [ 78.529183][ T5438] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.529883][ T5438] gfs2_fill_super+0xdec/0x19ec [ 78.530593][ T5438] get_tree_bdev+0x358/0x544 [ 78.531301][ T5438] gfs2_get_tree+0x54/0x1b4 [ 78.531962][ T5438] vfs_get_tree+0x90/0x274 [ 78.532638][ T5438] do_new_mount+0x228/0x810 [ 78.533294][ T5438] path_mount+0x5b4/0xe78 [ 78.533910][ T5438] __arm64_sys_mount+0x49c/0x584 [ 78.534698][ T5438] invoke_syscall+0x98/0x2bc [ 78.535424][ T5438] el0_svc_common+0x138/0x258 [ 78.535458][ T5431] loop2: detected capacity change from 0 to 32768 [ 78.536041][ T5438] do_el0_svc+0x58/0x13c [ 78.537610][ T5438] el0_svc+0x58/0x138 [ 78.538191][ T5438] el0t_64_sync_handler+0x84/0xf0 [ 78.538935][ T5438] el0t_64_sync+0x18c/0x190 [ 78.539645][ T5438] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.541470][ T5438] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.542885][ T5431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.544008][ T5431] CPU: 0 PID: 5431 Comm: syz.2.384 Not tainted syzkaller #0 [ 78.545008][ T5431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.546433][ T5431] Call trace: [ 78.546957][ T5431] dump_backtrace+0x1c8/0x1f4 [ 78.547587][ T5431] show_stack+0x2c/0x3c [ 78.548217][ T5431] __dump_stack+0x30/0x40 [ 78.548820][ T5431] dump_stack_lvl+0xf8/0x160 [ 78.549476][ T5431] dump_stack+0x1c/0x5c [ 78.550080][ T5431] sysfs_create_dir_ns+0x22c/0x24c [ 78.550828][ T5431] kobject_add_internal+0x5a8/0xb30 [ 78.551588][ T5431] kobject_init_and_add+0x118/0x17c [ 78.552296][ T5431] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.553034][ T5431] gfs2_fill_super+0xdec/0x19ec [ 78.553706][ T5431] get_tree_bdev+0x358/0x544 [ 78.554388][ T5431] gfs2_get_tree+0x54/0x1b4 [ 78.555057][ T5431] vfs_get_tree+0x90/0x274 [ 78.555737][ T5431] do_new_mount+0x228/0x810 [ 78.556464][ T5431] path_mount+0x5b4/0xe78 [ 78.557124][ T5431] __arm64_sys_mount+0x49c/0x584 [ 78.557832][ T5431] invoke_syscall+0x98/0x2bc [ 78.558465][ T5431] el0_svc_common+0x138/0x258 [ 78.559136][ T5431] do_el0_svc+0x58/0x13c [ 78.559775][ T5431] el0_svc+0x58/0x138 [ 78.560349][ T5431] el0t_64_sync_handler+0x84/0xf0 [ 78.561126][ T5431] el0t_64_sync+0x18c/0x190 [ 78.561761][ T5431] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.563573][ T5431] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.688125][ T5445] loop0: detected capacity change from 0 to 32768 [ 78.723191][ T5445] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.724398][ T5445] CPU: 0 PID: 5445 Comm: syz.0.390 Not tainted syzkaller #0 [ 78.725424][ T5445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.726856][ T5445] Call trace: [ 78.727315][ T5445] dump_backtrace+0x1c8/0x1f4 [ 78.728010][ T5445] show_stack+0x2c/0x3c [ 78.728625][ T5445] __dump_stack+0x30/0x40 [ 78.729220][ T5445] dump_stack_lvl+0xf8/0x160 [ 78.729827][ T5445] dump_stack+0x1c/0x5c [ 78.730432][ T5445] sysfs_create_dir_ns+0x22c/0x24c [ 78.731223][ T5445] kobject_add_internal+0x5a8/0xb30 [ 78.732025][ T5445] kobject_init_and_add+0x118/0x17c [ 78.732780][ T5445] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.733493][ T5445] gfs2_fill_super+0xdec/0x19ec [ 78.734248][ T5445] get_tree_bdev+0x358/0x544 [ 78.734921][ T5445] gfs2_get_tree+0x54/0x1b4 [ 78.735566][ T5445] vfs_get_tree+0x90/0x274 [ 78.736179][ T5445] do_new_mount+0x228/0x810 [ 78.736842][ T5445] path_mount+0x5b4/0xe78 [ 78.737427][ T5445] __arm64_sys_mount+0x49c/0x584 [ 78.738121][ T5445] invoke_syscall+0x98/0x2bc [ 78.738753][ T5445] el0_svc_common+0x138/0x258 [ 78.739459][ T5445] do_el0_svc+0x58/0x13c [ 78.740114][ T5445] el0_svc+0x58/0x138 [ 78.740724][ T5445] el0t_64_sync_handler+0x84/0xf0 [ 78.741505][ T5445] el0t_64_sync+0x18c/0x190 [ 78.742254][ T5445] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.743986][ T5445] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.821096][ T5443] loop1: detected capacity change from 0 to 32768 [ 78.940640][ T5443] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.941706][ T5443] CPU: 0 PID: 5443 Comm: syz.1.389 Not tainted syzkaller #0 [ 78.942745][ T5443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.944197][ T5443] Call trace: [ 78.944670][ T5443] dump_backtrace+0x1c8/0x1f4 [ 78.945330][ T5443] show_stack+0x2c/0x3c [ 78.945884][ T5443] __dump_stack+0x30/0x40 [ 78.946483][ T5443] dump_stack_lvl+0xf8/0x160 [ 78.947111][ T5443] dump_stack+0x1c/0x5c [ 78.947658][ T5443] sysfs_create_dir_ns+0x22c/0x24c [ 78.948449][ T5443] kobject_add_internal+0x5a8/0xb30 [ 78.949207][ T5443] kobject_init_and_add+0x118/0x17c [ 78.949960][ T5443] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.950693][ T5443] gfs2_fill_super+0xdec/0x19ec [ 78.951353][ T5443] get_tree_bdev+0x358/0x544 [ 78.952045][ T5443] gfs2_get_tree+0x54/0x1b4 [ 78.952696][ T5443] vfs_get_tree+0x90/0x274 [ 78.953375][ T5443] do_new_mount+0x228/0x810 [ 78.954057][ T5443] path_mount+0x5b4/0xe78 [ 78.954690][ T5443] __arm64_sys_mount+0x49c/0x584 [ 78.955431][ T5443] invoke_syscall+0x98/0x2bc [ 78.956138][ T5443] el0_svc_common+0x138/0x258 [ 78.956446][ T5450] loop5: detected capacity change from 0 to 32768 [ 78.956820][ T5443] do_el0_svc+0x58/0x13c [ 78.958446][ T5443] el0_svc+0x58/0x138 [ 78.958463][ T5450] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 78.959039][ T5443] el0t_64_sync_handler+0x84/0xf0 [ 78.960826][ T5443] el0t_64_sync+0x18c/0x190 [ 78.961490][ T5450] CPU: 1 PID: 5450 Comm: syz.5.392 Not tainted syzkaller #0 [ 78.961531][ T5443] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.962507][ T5450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 78.964235][ T5443] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 78.965654][ T5450] Call trace: [ 78.965662][ T5450] dump_backtrace+0x1c8/0x1f4 [ 78.967755][ T5450] show_stack+0x2c/0x3c [ 78.968311][ T5450] __dump_stack+0x30/0x40 [ 78.968930][ T5450] dump_stack_lvl+0xf8/0x160 [ 78.969594][ T5450] dump_stack+0x1c/0x5c [ 78.970274][ T5450] sysfs_create_dir_ns+0x22c/0x24c [ 78.970990][ T5450] kobject_add_internal+0x5a8/0xb30 [ 78.971733][ T5450] kobject_init_and_add+0x118/0x17c [ 78.972485][ T5450] gfs2_sys_fs_add+0x1dc/0x3d8 [ 78.973142][ T5450] gfs2_fill_super+0xdec/0x19ec [ 78.973806][ T5450] get_tree_bdev+0x358/0x544 [ 78.974488][ T5450] gfs2_get_tree+0x54/0x1b4 [ 78.975128][ T5450] vfs_get_tree+0x90/0x274 [ 78.975747][ T5450] do_new_mount+0x228/0x810 [ 78.976360][ T5450] path_mount+0x5b4/0xe78 [ 78.976956][ T5450] __arm64_sys_mount+0x49c/0x584 [ 78.977639][ T5450] invoke_syscall+0x98/0x2bc [ 78.978286][ T5450] el0_svc_common+0x138/0x258 [ 78.978927][ T5450] do_el0_svc+0x58/0x13c [ 78.979529][ T5450] el0_svc+0x58/0x138 [ 78.980061][ T5450] el0t_64_sync_handler+0x84/0xf0 [ 78.980810][ T5450] el0t_64_sync+0x18c/0x190 [ 78.981508][ T5450] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 78.983291][ T5450] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 79.086742][ T5451] loop2: detected capacity change from 0 to 32768 [ 79.092076][ T5451] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 79.093186][ T5451] CPU: 1 PID: 5451 Comm: syz.2.391 Not tainted syzkaller #0 [ 79.094200][ T5451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.095781][ T5451] Call trace: [ 79.096278][ T5451] dump_backtrace+0x1c8/0x1f4 [ 79.097000][ T5451] show_stack+0x2c/0x3c [ 79.097678][ T5451] __dump_stack+0x30/0x40 [ 79.098345][ T5451] dump_stack_lvl+0xf8/0x160 [ 79.099009][ T5451] dump_stack+0x1c/0x5c [ 79.099602][ T5451] sysfs_create_dir_ns+0x22c/0x24c [ 79.100340][ T5451] kobject_add_internal+0x5a8/0xb30 [ 79.101118][ T5451] kobject_init_and_add+0x118/0x17c [ 79.101871][ T5451] gfs2_sys_fs_add+0x1dc/0x3d8 [ 79.102538][ T5451] gfs2_fill_super+0xdec/0x19ec [ 79.103218][ T5451] get_tree_bdev+0x358/0x544 [ 79.103891][ T5451] gfs2_get_tree+0x54/0x1b4 [ 79.104556][ T5451] vfs_get_tree+0x90/0x274 [ 79.105159][ T5451] do_new_mount+0x228/0x810 [ 79.105768][ T5451] path_mount+0x5b4/0xe78 [ 79.106437][ T5451] __arm64_sys_mount+0x49c/0x584 [ 79.107125][ T5451] invoke_syscall+0x98/0x2bc [ 79.107766][ T5451] el0_svc_common+0x138/0x258 [ 79.108426][ T5451] do_el0_svc+0x58/0x13c [ 79.109044][ T5451] el0_svc+0x58/0x138 [ 79.109630][ T5451] el0t_64_sync_handler+0x84/0xf0 [ 79.110358][ T5451] el0t_64_sync+0x18c/0x190 [ 79.111132][ T5451] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 79.112920][ T5451] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 79.294397][ T4348] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 79.328471][ T4341] I/O error, dev loop5, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 79.588487][ T5463] loop4: detected capacity change from 0 to 32768 [ 79.600134][ T5467] loop2: detected capacity change from 0 to 32768 [ 79.607079][ T5463] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 79.608210][ T5463] CPU: 1 PID: 5463 Comm: syz.4.401 Not tainted syzkaller #0 [ 79.609246][ T5463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.610659][ T5463] Call trace: [ 79.611177][ T5463] dump_backtrace+0x1c8/0x1f4 [ 79.611479][ T5467] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 79.611844][ T5463] show_stack+0x2c/0x3c [ 79.613738][ T5463] __dump_stack+0x30/0x40 [ 79.614349][ T5463] dump_stack_lvl+0xf8/0x160 [ 79.615047][ T5463] dump_stack+0x1c/0x5c [ 79.615675][ T5463] sysfs_create_dir_ns+0x22c/0x24c [ 79.616434][ T5463] kobject_add_internal+0x5a8/0xb30 [ 79.617198][ T5463] kobject_init_and_add+0x118/0x17c [ 79.617996][ T5463] gfs2_sys_fs_add+0x1dc/0x3d8 [ 79.618688][ T5463] gfs2_fill_super+0xdec/0x19ec [ 79.619428][ T5463] get_tree_bdev+0x358/0x544 [ 79.620052][ T5463] gfs2_get_tree+0x54/0x1b4 [ 79.620698][ T5463] vfs_get_tree+0x90/0x274 [ 79.621330][ T5463] do_new_mount+0x228/0x810 [ 79.621974][ T5463] path_mount+0x5b4/0xe78 [ 79.622586][ T5463] __arm64_sys_mount+0x49c/0x584 [ 79.623302][ T5463] invoke_syscall+0x98/0x2bc [ 79.623988][ T5463] el0_svc_common+0x138/0x258 [ 79.624632][ T5463] do_el0_svc+0x58/0x13c [ 79.625238][ T5463] el0_svc+0x58/0x138 [ 79.625808][ T5463] el0t_64_sync_handler+0x84/0xf0 [ 79.626545][ T5463] el0t_64_sync+0x18c/0x190 [ 79.627219][ T5467] CPU: 0 PID: 5467 Comm: syz.2.399 Not tainted syzkaller #0 [ 79.627884][ T5463] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 79.628382][ T5467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.630339][ T5463] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 79.631835][ T5467] Call trace: [ 79.633291][ T5467] dump_backtrace+0x1c8/0x1f4 [ 79.634028][ T5467] show_stack+0x2c/0x3c [ 79.634679][ T5467] __dump_stack+0x30/0x40 [ 79.635313][ T5467] dump_stack_lvl+0xf8/0x160 [ 79.635960][ T5467] dump_stack+0x1c/0x5c [ 79.636545][ T5467] sysfs_create_dir_ns+0x22c/0x24c [ 79.637334][ T5467] kobject_add_internal+0x5a8/0xb30 [ 79.638083][ T5467] kobject_init_and_add+0x118/0x17c [ 79.638839][ T5467] gfs2_sys_fs_add+0x1dc/0x3d8 [ 79.639517][ T5467] gfs2_fill_super+0xdec/0x19ec [ 79.640208][ T5467] get_tree_bdev+0x358/0x544 [ 79.640797][ T5467] gfs2_get_tree+0x54/0x1b4 [ 79.641430][ T5467] vfs_get_tree+0x90/0x274 [ 79.642006][ T5467] do_new_mount+0x228/0x810 [ 79.642643][ T5467] path_mount+0x5b4/0xe78 [ 79.643223][ T5467] __arm64_sys_mount+0x49c/0x584 [ 79.643890][ T5467] invoke_syscall+0x98/0x2bc [ 79.644540][ T5467] el0_svc_common+0x138/0x258 [ 79.645240][ T5467] do_el0_svc+0x58/0x13c [ 79.645885][ T5467] el0_svc+0x58/0x138 [ 79.646492][ T5467] el0t_64_sync_handler+0x84/0xf0 [ 79.647257][ T5467] el0t_64_sync+0x18c/0x190 [ 79.647928][ T5467] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 79.649667][ T5467] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 79.739772][ T5466] loop5: detected capacity change from 0 to 32768 [ 79.773212][ T5466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 79.774446][ T5466] CPU: 1 PID: 5466 Comm: syz.5.400 Not tainted syzkaller #0 [ 79.775589][ T5466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 79.777045][ T5466] Call trace: [ 79.777495][ T5466] dump_backtrace+0x1c8/0x1f4 [ 79.778189][ T5466] show_stack+0x2c/0x3c [ 79.778785][ T5466] __dump_stack+0x30/0x40 [ 79.779404][ T5466] dump_stack_lvl+0xf8/0x160 [ 79.780023][ T5466] dump_stack+0x1c/0x5c [ 79.780630][ T5466] sysfs_create_dir_ns+0x22c/0x24c [ 79.781348][ T5466] kobject_add_internal+0x5a8/0xb30 [ 79.782092][ T5466] kobject_init_and_add+0x118/0x17c [ 79.782811][ T5466] gfs2_sys_fs_add+0x1dc/0x3d8 [ 79.783493][ T5466] gfs2_fill_super+0xdec/0x19ec [ 79.784179][ T5466] get_tree_bdev+0x358/0x544 [ 79.784807][ T5466] gfs2_get_tree+0x54/0x1b4 [ 79.785486][ T5466] vfs_get_tree+0x90/0x274 [ 79.786082][ T5466] do_new_mount+0x228/0x810 [ 79.786670][ T5466] path_mount+0x5b4/0xe78 [ 79.787283][ T5466] __arm64_sys_mount+0x49c/0x584 [ 79.787947][ T5466] invoke_syscall+0x98/0x2bc [ 79.788549][ T5466] el0_svc_common+0x138/0x258 [ 79.789217][ T5466] do_el0_svc+0x58/0x13c [ 79.789862][ T5466] el0_svc+0x58/0x138 [ 79.790436][ T5466] el0t_64_sync_handler+0x84/0xf0 [ 79.791109][ T5466] el0t_64_sync+0x18c/0x190 [ 79.791788][ T5466] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 79.793585][ T5466] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.235356][ T5483] loop4: detected capacity change from 0 to 32768 [ 80.237305][ T5483] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.238483][ T5483] CPU: 1 PID: 5483 Comm: syz.4.409 Not tainted syzkaller #0 [ 80.239551][ T5483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.241144][ T5483] Call trace: [ 80.241617][ T5483] dump_backtrace+0x1c8/0x1f4 [ 80.242262][ T5483] show_stack+0x2c/0x3c [ 80.242810][ T5483] __dump_stack+0x30/0x40 [ 80.243416][ T5483] dump_stack_lvl+0xf8/0x160 [ 80.244024][ T5483] dump_stack+0x1c/0x5c [ 80.244606][ T5483] sysfs_create_dir_ns+0x22c/0x24c [ 80.245343][ T5483] kobject_add_internal+0x5a8/0xb30 [ 80.246059][ T5483] kobject_init_and_add+0x118/0x17c [ 80.246837][ T5483] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.247459][ T5483] gfs2_fill_super+0xdec/0x19ec [ 80.248157][ T5483] get_tree_bdev+0x358/0x544 [ 80.248785][ T5483] gfs2_get_tree+0x54/0x1b4 [ 80.249403][ T5483] vfs_get_tree+0x90/0x274 [ 80.250056][ T5483] do_new_mount+0x228/0x810 [ 80.250789][ T5483] path_mount+0x5b4/0xe78 [ 80.251433][ T5483] __arm64_sys_mount+0x49c/0x584 [ 80.252253][ T5483] invoke_syscall+0x98/0x2bc [ 80.252972][ T5483] el0_svc_common+0x138/0x258 [ 80.253638][ T5483] do_el0_svc+0x58/0x13c [ 80.254305][ T5483] el0_svc+0x58/0x138 [ 80.254933][ T5483] el0t_64_sync_handler+0x84/0xf0 [ 80.255771][ T5483] el0t_64_sync+0x18c/0x190 [ 80.257311][ T5483] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.259211][ T5483] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.362565][ T5485] loop5: detected capacity change from 0 to 32768 1970/01/01 00:01:20 executed programs: 404 [ 80.440359][ T5485] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.441481][ T5485] CPU: 1 PID: 5485 Comm: syz.5.408 Not tainted syzkaller #0 [ 80.442553][ T5485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.444015][ T5485] Call trace: [ 80.444486][ T5485] dump_backtrace+0x1c8/0x1f4 [ 80.445175][ T5485] show_stack+0x2c/0x3c [ 80.445772][ T5485] __dump_stack+0x30/0x40 [ 80.446393][ T5485] dump_stack_lvl+0xf8/0x160 [ 80.447087][ T5485] dump_stack+0x1c/0x5c [ 80.447733][ T5485] sysfs_create_dir_ns+0x22c/0x24c [ 80.448451][ T5485] kobject_add_internal+0x5a8/0xb30 [ 80.449182][ T5485] kobject_init_and_add+0x118/0x17c [ 80.449897][ T5485] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.450527][ T5485] gfs2_fill_super+0xdec/0x19ec [ 80.451259][ T5485] get_tree_bdev+0x358/0x544 [ 80.451931][ T5485] gfs2_get_tree+0x54/0x1b4 [ 80.452589][ T5485] vfs_get_tree+0x90/0x274 [ 80.453224][ T5485] do_new_mount+0x228/0x810 [ 80.453854][ T5485] path_mount+0x5b4/0xe78 [ 80.454516][ T5485] __arm64_sys_mount+0x49c/0x584 [ 80.455179][ T5485] invoke_syscall+0x98/0x2bc [ 80.455777][ T5485] el0_svc_common+0x138/0x258 [ 80.456446][ T5485] do_el0_svc+0x58/0x13c [ 80.457392][ T5485] el0_svc+0x58/0x138 [ 80.457945][ T5485] el0t_64_sync_handler+0x84/0xf0 [ 80.458660][ T5485] el0t_64_sync+0x18c/0x190 [ 80.459382][ T5485] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.461260][ T5485] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.467234][ T5487] loop1: detected capacity change from 0 to 32768 [ 80.469641][ T5487] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.470800][ T5487] CPU: 0 PID: 5487 Comm: syz.1.410 Not tainted syzkaller #0 [ 80.471887][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.473327][ T5487] Call trace: [ 80.473929][ T5487] dump_backtrace+0x1c8/0x1f4 [ 80.474650][ T5487] show_stack+0x2c/0x3c [ 80.475273][ T5487] __dump_stack+0x30/0x40 [ 80.475950][ T5487] dump_stack_lvl+0xf8/0x160 [ 80.476660][ T5487] dump_stack+0x1c/0x5c [ 80.477290][ T5487] sysfs_create_dir_ns+0x22c/0x24c [ 80.478031][ T5487] kobject_add_internal+0x5a8/0xb30 [ 80.478858][ T5487] kobject_init_and_add+0x118/0x17c [ 80.479574][ T5487] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.480299][ T5487] gfs2_fill_super+0xdec/0x19ec [ 80.481009][ T5487] get_tree_bdev+0x358/0x544 [ 80.481638][ T5487] gfs2_get_tree+0x54/0x1b4 [ 80.482288][ T5487] vfs_get_tree+0x90/0x274 [ 80.482941][ T5487] do_new_mount+0x228/0x810 [ 80.483609][ T5487] path_mount+0x5b4/0xe78 [ 80.484223][ T5487] __arm64_sys_mount+0x49c/0x584 [ 80.484943][ T5487] invoke_syscall+0x98/0x2bc [ 80.485606][ T5487] el0_svc_common+0x138/0x258 [ 80.486278][ T5487] do_el0_svc+0x58/0x13c [ 80.486886][ T5487] el0_svc+0x58/0x138 [ 80.487467][ T5487] el0t_64_sync_handler+0x84/0xf0 [ 80.488213][ T5487] el0t_64_sync+0x18c/0x190 [ 80.488963][ T5487] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.490895][ T5487] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.570163][ T4555] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 80.651756][ T5491] loop2: detected capacity change from 0 to 32768 [ 80.705369][ T5493] loop4: detected capacity change from 0 to 32768 [ 80.720263][ T5491] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.721409][ T5491] CPU: 0 PID: 5491 Comm: syz.2.412 Not tainted syzkaller #0 [ 80.722556][ T5491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.723967][ T5491] Call trace: [ 80.724429][ T5491] dump_backtrace+0x1c8/0x1f4 [ 80.725087][ T5491] show_stack+0x2c/0x3c [ 80.725678][ T5491] __dump_stack+0x30/0x40 [ 80.726277][ T5491] dump_stack_lvl+0xf8/0x160 [ 80.726900][ T5491] dump_stack+0x1c/0x5c [ 80.727469][ T5491] sysfs_create_dir_ns+0x22c/0x24c [ 80.728197][ T5491] kobject_add_internal+0x5a8/0xb30 [ 80.728923][ T5491] kobject_init_and_add+0x118/0x17c [ 80.729623][ T5491] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.730320][ T5491] gfs2_fill_super+0xdec/0x19ec [ 80.731002][ T5491] get_tree_bdev+0x358/0x544 [ 80.731683][ T5491] gfs2_get_tree+0x54/0x1b4 [ 80.732328][ T5491] vfs_get_tree+0x90/0x274 [ 80.732988][ T5491] do_new_mount+0x228/0x810 [ 80.733700][ T5491] path_mount+0x5b4/0xe78 [ 80.734365][ T5491] __arm64_sys_mount+0x49c/0x584 [ 80.735062][ T5491] invoke_syscall+0x98/0x2bc [ 80.735780][ T5491] el0_svc_common+0x138/0x258 [ 80.736472][ T5491] do_el0_svc+0x58/0x13c [ 80.737110][ T5491] el0_svc+0x58/0x138 [ 80.737722][ T5491] el0t_64_sync_handler+0x84/0xf0 [ 80.738512][ T5491] el0t_64_sync+0x18c/0x190 [ 80.739221][ T5491] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.741080][ T5491] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.746400][ T5493] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.747533][ T5493] CPU: 0 PID: 5493 Comm: syz.4.413 Not tainted syzkaller #0 [ 80.748606][ T5493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.750068][ T5493] Call trace: [ 80.750584][ T5493] dump_backtrace+0x1c8/0x1f4 [ 80.751290][ T5493] show_stack+0x2c/0x3c [ 80.751912][ T5493] __dump_stack+0x30/0x40 [ 80.752556][ T5493] dump_stack_lvl+0xf8/0x160 [ 80.753168][ T5493] dump_stack+0x1c/0x5c [ 80.753755][ T5493] sysfs_create_dir_ns+0x22c/0x24c [ 80.754461][ T5493] kobject_add_internal+0x5a8/0xb30 [ 80.755262][ T5493] kobject_init_and_add+0x118/0x17c [ 80.756045][ T5493] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.756730][ T5493] gfs2_fill_super+0xdec/0x19ec [ 80.757472][ T5493] get_tree_bdev+0x358/0x544 [ 80.758110][ T5493] gfs2_get_tree+0x54/0x1b4 [ 80.758772][ T5493] vfs_get_tree+0x90/0x274 [ 80.759379][ T5493] do_new_mount+0x228/0x810 [ 80.760013][ T5493] path_mount+0x5b4/0xe78 [ 80.760597][ T5493] __arm64_sys_mount+0x49c/0x584 [ 80.761299][ T5493] invoke_syscall+0x98/0x2bc [ 80.761943][ T5493] el0_svc_common+0x138/0x258 [ 80.762606][ T5493] do_el0_svc+0x58/0x13c [ 80.763198][ T5493] el0_svc+0x58/0x138 [ 80.763866][ T5493] el0t_64_sync_handler+0x84/0xf0 [ 80.764636][ T5493] el0t_64_sync+0x18c/0x190 [ 80.765427][ T5493] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.767310][ T5493] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 80.797247][ T5496] loop5: detected capacity change from 0 to 32768 [ 80.798915][ T5496] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 80.800022][ T5496] CPU: 1 PID: 5496 Comm: syz.5.415 Not tainted syzkaller #0 [ 80.801089][ T5496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 80.802497][ T5496] Call trace: [ 80.802951][ T5496] dump_backtrace+0x1c8/0x1f4 [ 80.803662][ T5496] show_stack+0x2c/0x3c [ 80.804265][ T5496] __dump_stack+0x30/0x40 [ 80.804883][ T5496] dump_stack_lvl+0xf8/0x160 [ 80.805543][ T5496] dump_stack+0x1c/0x5c [ 80.806127][ T5496] sysfs_create_dir_ns+0x22c/0x24c [ 80.806828][ T5496] kobject_add_internal+0x5a8/0xb30 [ 80.807534][ T5496] kobject_init_and_add+0x118/0x17c [ 80.808278][ T5496] gfs2_sys_fs_add+0x1dc/0x3d8 [ 80.808968][ T5496] gfs2_fill_super+0xdec/0x19ec [ 80.809676][ T5496] get_tree_bdev+0x358/0x544 [ 80.810363][ T5496] gfs2_get_tree+0x54/0x1b4 [ 80.811083][ T5496] vfs_get_tree+0x90/0x274 [ 80.811765][ T5496] do_new_mount+0x228/0x810 [ 80.812455][ T5496] path_mount+0x5b4/0xe78 [ 80.813133][ T5496] __arm64_sys_mount+0x49c/0x584 [ 80.813894][ T5496] invoke_syscall+0x98/0x2bc [ 80.814584][ T5496] el0_svc_common+0x138/0x258 [ 80.815291][ T5496] do_el0_svc+0x58/0x13c [ 80.815893][ T5496] el0_svc+0x58/0x138 [ 80.816460][ T5496] el0t_64_sync_handler+0x84/0xf0 [ 80.817197][ T5496] el0t_64_sync+0x18c/0x190 [ 80.817965][ T5496] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 80.819898][ T5496] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 81.073055][ T5471] loop0: detected capacity change from 0 to 32768 [ 81.177975][ T4743] ================================================================== [ 81.178249][ T5504] loop2: detected capacity change from 0 to 32768 [ 81.179157][ T4743] BUG: KASAN: use-after-free in __lock_acquire+0xf0/0x6544 [ 81.181215][ T4743] Read of size 8 at addr ffff0000dc094bb0 by task gfs2_quotad/4743 [ 81.182326][ T4743] [ 81.182687][ T4743] CPU: 0 PID: 4743 Comm: gfs2_quotad Not tainted syzkaller #0 [ 81.183791][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.185234][ T4743] Call trace: [ 81.185712][ T4743] dump_backtrace+0x1c8/0x1f4 [ 81.186376][ T4743] show_stack+0x2c/0x3c [ 81.187277][ T4743] __dump_stack+0x30/0x40 [ 81.187892][ T4743] dump_stack_lvl+0xf8/0x160 [ 81.188525][ T4743] print_address_description+0x88/0x218 [ 81.189326][ T4743] print_report+0x50/0x68 [ 81.189907][ T4743] kasan_report+0xa8/0x100 [ 81.190547][ T4743] __asan_report_load8_noabort+0x2c/0x38 [ 81.191401][ T4743] __lock_acquire+0xf0/0x6544 [ 81.192140][ T4743] lock_acquire+0x20c/0x644 [ 81.192831][ T4743] _raw_spin_lock_irqsave+0x6c/0xb4 [ 81.193636][ T4743] finish_wait+0xc8/0x1ac [ 81.194266][ T4743] gfs2_quotad+0x390/0x4fc [ 81.194965][ T4743] kthread+0x250/0x2d8 [ 81.195605][ T4743] ret_from_fork+0x10/0x20 [ 81.196278][ T4743] [ 81.196655][ T4743] Allocated by task 5395: [ 81.197313][ T4743] kasan_set_track+0x4c/0x80 [ 81.198006][ T4743] kasan_save_alloc_info+0x28/0x34 [ 81.198756][ T4743] __kasan_kmalloc+0xa0/0xb8 [ 81.199426][ T4743] kmalloc_trace+0x7c/0x94 [ 81.200076][ T4743] gfs2_fill_super+0xfc/0x19ec [ 81.200727][ T4743] get_tree_bdev+0x358/0x544 [ 81.201356][ T4743] gfs2_get_tree+0x54/0x1b4 [ 81.202010][ T4743] vfs_get_tree+0x90/0x274 [ 81.202636][ T4743] do_new_mount+0x228/0x810 [ 81.203262][ T4743] path_mount+0x5b4/0xe78 [ 81.203893][ T4743] __arm64_sys_mount+0x49c/0x584 [ 81.204608][ T4743] invoke_syscall+0x98/0x2bc [ 81.205287][ T4743] el0_svc_common+0x138/0x258 [ 81.205893][ T4743] do_el0_svc+0x58/0x13c [ 81.206515][ T4743] el0_svc+0x58/0x138 [ 81.207096][ T4743] el0t_64_sync_handler+0x84/0xf0 [ 81.207809][ T4743] el0t_64_sync+0x18c/0x190 [ 81.208449][ T4743] [ 81.208761][ T4743] Freed by task 5395: [ 81.209306][ T4743] kasan_set_track+0x4c/0x80 [ 81.210037][ T4743] kasan_save_free_info+0x3c/0x60 [ 81.210815][ T4743] ____kasan_slab_free+0x148/0x1b0 [ 81.211609][ T4743] __kasan_slab_free+0x18/0x28 [ 81.212282][ T4743] slab_free_freelist_hook+0x16c/0x1ec [ 81.213052][ T4743] __kmem_cache_free+0xc0/0x224 [ 81.213725][ T4743] kfree+0xd0/0x1ac [ 81.214279][ T4743] gfs2_fill_super+0xe48/0x19ec [ 81.214991][ T4743] get_tree_bdev+0x358/0x544 [ 81.215687][ T4743] gfs2_get_tree+0x54/0x1b4 [ 81.216317][ T4743] vfs_get_tree+0x90/0x274 [ 81.216914][ T4743] do_new_mount+0x228/0x810 [ 81.217550][ T4743] path_mount+0x5b4/0xe78 [ 81.218164][ T4743] __arm64_sys_mount+0x49c/0x584 [ 81.218903][ T4743] invoke_syscall+0x98/0x2bc [ 81.219505][ T4743] el0_svc_common+0x138/0x258 [ 81.220182][ T4743] do_el0_svc+0x58/0x13c [ 81.220805][ T4743] el0_svc+0x58/0x138 [ 81.221397][ T4743] el0t_64_sync_handler+0x84/0xf0 [ 81.222150][ T4743] el0t_64_sync+0x18c/0x190 [ 81.222743][ T4743] [ 81.223053][ T4743] The buggy address belongs to the object at ffff0000dc094000 [ 81.223053][ T4743] which belongs to the cache kmalloc-8k of size 8192 [ 81.224961][ T4743] The buggy address is located 2992 bytes inside of [ 81.224961][ T4743] 8192-byte region [ffff0000dc094000, ffff0000dc096000) [ 81.226874][ T4743] [ 81.227179][ T4743] The buggy address belongs to the physical page: [ 81.228057][ T4743] page:0000000041247a83 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11c090 [ 81.229442][ T4743] head:0000000041247a83 order:3 compound_mapcount:0 compound_pincount:0 [ 81.230585][ T4743] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 81.231760][ T4743] raw: 05ffc00000010200 fffffc000327e400 dead000000000004 ffff0000c0002c00 [ 81.232998][ T4743] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 [ 81.234122][ T4743] page dumped because: kasan: bad access detected [ 81.235029][ T4743] [ 81.235366][ T4743] Memory state around the buggy address: [ 81.236163][ T4743] ffff0000dc094a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 81.237336][ T4743] ffff0000dc094b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 81.238408][ T4743] >ffff0000dc094b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 81.239509][ T4743] ^ [ 81.240341][ T4743] ffff0000dc094c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 81.241520][ T4743] ffff0000dc094c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 81.242638][ T4743] ================================================================== [ 81.243785][ T4743] Disabling lock debugging due to kernel taint [ 81.244635][ T4743] list_del corruption. prev->next should be ffff800021b17d98, but was ffff0000dc094bd8. (prev=ffff0000dc094bd8) [ 81.246351][ T4743] ------------[ cut here ]------------ [ 81.247122][ T4743] kernel BUG at lib/list_debug.c:61! [ 81.247952][ T4743] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 81.249103][ T4743] Modules linked in: [ 81.249694][ T4743] CPU: 0 PID: 4743 Comm: gfs2_quotad Tainted: G B syzkaller #0 [ 81.250913][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.252324][ T4743] pstate: 624000c5 (nZCv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 81.253548][ T4743] pc : __list_del_entry_valid+0x13c/0x158 [ 81.254336][ T4743] lr : __list_del_entry_valid+0x13c/0x158 [ 81.255115][ T4743] sp : ffff800021b17c70 [ 81.255704][ T4743] x29: ffff800021b17c70 x28: 0000000000000000 x27: 0000000000000bb8 [ 81.256787][ T4743] x26: 0000000000001770 x25: dfff800000000000 x24: dfff800000000000 [ 81.257961][ T4743] x23: ffff0000dc0947c0 x22: dfff800000000000 x21: ffff0000dc094bd8 [ 81.259116][ T4743] x20: ffff0000dc094bd8 x19: ffff800021b17d98 x18: ffff800011abbcc0 [ 81.260305][ T4743] x17: 20747562202c3839 x16: ffff8000082e7de8 x15: 0000000000000000 [ 81.261454][ T4743] x14: 00000000ffffffff x13: fffffffffffec1e8 x12: 0000000000ff0100 [ 81.262631][ T4743] x11: ff0080000830a28c x10: 0000000000000000 x9 : 0c37dec60dca3b00 [ 81.263781][ T4743] x8 : 0c37dec60dca3b00 x7 : fffffffffffec1e8 x6 : fffffffffffec150 [ 81.265009][ T4743] x5 : ffff800021b17738 x4 : ffff800015185a38 x3 : ffff80000852e538 [ 81.266194][ T4743] x2 : 0000000000000001 x1 : 0000000100000001 x0 : 000000000000006d [ 81.267413][ T4743] Call trace: [ 81.267890][ T4743] __list_del_entry_valid+0x13c/0x158 [ 81.268663][ T4743] finish_wait+0xd4/0x1ac [ 81.269255][ T4743] gfs2_quotad+0x390/0x4fc [ 81.269909][ T4743] kthread+0x250/0x2d8 [ 81.270523][ T4743] ret_from_fork+0x10/0x20 [ 81.271199][ T4743] Code: 91028000 aa1303e1 aa1503e3 95bfbbe3 (d4210000) [ 81.272140][ T4743] ---[ end trace 0000000000000000 ]--- [ 81.289066][ T5498] loop1: detected capacity change from 0 to 32768 [ 81.297227][ T5471] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 81.298356][ T5471] CPU: 1 PID: 5471 Comm: syz.0.402 Tainted: G B D syzkaller #0 [ 81.299741][ T5471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 81.301262][ T5471] Call trace: [ 81.301750][ T5471] dump_backtrace+0x1c8/0x1f4 [ 81.302482][ T5471] show_stack+0x2c/0x3c [ 81.303173][ T5471] __dump_stack+0x30/0x40 [ 81.303802][ T5471] dump_stack_lvl+0xf8/0x160 [ 81.304464][ T5471] dump_stack+0x1c/0x5c [ 81.305061][ T5471] sysfs_create_dir_ns+0x22c/0x24c [ 81.305849][ T5471] kobject_add_internal+0x5a8/0xb30 [ 81.306583][ T5471] kobject_init_and_add+0x118/0x17c [ 81.307271][ T5471] gfs2_sys_fs_add+0x1dc/0x3d8 [ 81.307936][ T5471] gfs2_fill_super+0xdec/0x19ec [ 81.308673][ T5471] get_tree_bdev+0x358/0x544 [ 81.309340][ T5471] gfs2_get_tree+0x54/0x1b4 [ 81.309999][ T5471] vfs_get_tree+0x90/0x274 [ 81.310656][ T5471] do_new_mount+0x228/0x810 [ 81.311280][ T5471] path_mount+0x5b4/0xe78 [ 81.311968][ T5471] __arm64_sys_mount+0x49c/0x584 [ 81.312702][ T5471] invoke_syscall+0x98/0x2bc [ 81.313395][ T5471] el0_svc_common+0x138/0x258 [ 81.314060][ T5471] do_el0_svc+0x58/0x13c [ 81.314670][ T5471] el0_svc+0x58/0x138 [ 81.315247][ T5471] el0t_64_sync_handler+0x84/0xf0 [ 81.316023][ T5471] el0t_64_sync+0x18c/0x190 [ 81.627828][ T4743] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 81.628910][ T4743] SMP: stopping secondary CPUs [ 81.629686][ T4743] Kernel Offset: disabled [ 81.630421][ T4743] CPU features: 0x080000,000f0097,a65bfea7 [ 81.631308][ T4743] Memory Limit: none [ 81.966858][ T4743] Rebooting in 86400 seconds..