Warning: Permanently added '10.128.0.85' (ED25519) to the list of known hosts. 2026/07/03 13:10:03 parsed 1 programs 2026/07/03 13:10:03 serving rpc on tcp://37747 [ 91.792924][ T9] cfg80211: failed to load regulatory.db [ 92.649081][ T5606] cgroup: Unknown subsys name 'net' [ 92.892386][ T5606] cgroup: Unknown subsys name 'cpuset' [ 92.964903][ T5606] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 94.979898][ T5606] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 100.748293][ T5646] bridge0: port 1(bridge_slave_0) entered blocking state [ 100.749244][ T5646] bridge0: port 1(bridge_slave_0) entered disabled state [ 100.749350][ T5646] bridge_slave_0: entered allmulticast mode [ 100.751400][ T5646] bridge_slave_0: entered promiscuous mode [ 100.767711][ T5646] bridge0: port 2(bridge_slave_1) entered blocking state [ 100.767813][ T5646] bridge0: port 2(bridge_slave_1) entered disabled state [ 100.767938][ T5646] bridge_slave_1: entered allmulticast mode [ 100.779806][ T5646] bridge_slave_1: entered promiscuous mode [ 100.900722][ T5646] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 100.903734][ T5646] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 100.950834][ T5646] team0: Port device team_slave_0 added [ 100.954036][ T5646] team0: Port device team_slave_1 added [ 100.994994][ T5646] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 100.995008][ T5646] batman_adv: batadv0: The MTU of interface batadv_slave_0 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 1532 would solve the problem. [ 100.995026][ T5646] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 100.999173][ T5646] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 100.999184][ T5646] 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 1532 would solve the problem. [ 100.999201][ T5646] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.126380][ T5646] hsr_slave_0: entered promiscuous mode [ 101.127412][ T5646] hsr_slave_1: entered promiscuous mode [ 101.423144][ T5646] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.468090][ T5646] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 101.470621][ T5646] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.511941][ T5646] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 101.526448][ T5646] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.547606][ T5646] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 101.548867][ T5646] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.598222][ T5646] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 101.892559][ T5646] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.937266][ T5646] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.957917][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.958093][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.015614][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.015776][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.466062][ T5646] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.549629][ T5646] veth0_vlan: entered promiscuous mode [ 102.569838][ T5646] veth1_vlan: entered promiscuous mode [ 102.628207][ T5646] veth0_macvtap: entered promiscuous mode [ 102.632925][ T5646] veth1_macvtap: entered promiscuous mode [ 102.672284][ T5646] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.687385][ T5646] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.710099][ T1178] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.711948][ T1178] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.712602][ T1178] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.713261][ T1178] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 103.399158][ T1178] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 103.737373][ T1178] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 104.118233][ T4911] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.142777][ T4911] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.143648][ T4911] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.159909][ T4911] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.161055][ T4911] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.518205][ T1178] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 105.350174][ T1178] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 106.206222][ T1178] bridge_slave_1: left allmulticast mode [ 106.206320][ T1178] bridge_slave_1: left promiscuous mode [ 106.210314][ T1178] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.386210][ T1178] bridge_slave_0: left allmulticast mode [ 106.386244][ T1178] bridge_slave_0: left promiscuous mode [ 106.386526][ T1178] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.115089][ T1178] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 107.195098][ T1178] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 107.236677][ T1178] bond0 (unregistering): Released all slaves [ 107.277607][ T5258] 8021q: adding VLAN 0 to HW filter on device eth1 [ 107.403900][ T2188] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 107.403926][ T2188] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 107.674434][ T1178] hsr_slave_0: left promiscuous mode [ 107.714419][ T1178] hsr_slave_1: left promiscuous mode [ 107.715597][ T1178] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 107.715676][ T1178] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 107.779730][ T1178] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 107.779758][ T1178] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 107.860614][ T1178] veth1_macvtap: left promiscuous mode [ 107.860855][ T1178] veth0_macvtap: left promiscuous mode [ 107.861137][ T1178] veth1_vlan: left promiscuous mode [ 107.861436][ T1178] veth0_vlan: left promiscuous mode [ 108.605992][ T1178] team0 (unregistering): Port device team_slave_1 removed [ 108.664951][ T1178] team0 (unregistering): Port device team_slave_0 removed [ 108.849406][ T152] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.849427][ T152] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.891664][ T5258] 8021q: adding VLAN 0 to HW filter on device eth2 [ 109.795344][ T5258] 8021q: adding VLAN 0 to HW filter on device eth3 [ 111.137532][ T5258] 8021q: adding VLAN 0 to HW filter on device eth4 2026/07/03 13:10:26 executed programs: 0 [ 111.903468][ T59] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 111.922742][ T59] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 111.924003][ T59] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 111.933262][ T59] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 111.944790][ T59] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 112.597373][ T5794] bridge0: port 1(bridge_slave_0) entered blocking state [ 112.597523][ T5794] bridge0: port 1(bridge_slave_0) entered disabled state [ 112.597626][ T5794] bridge_slave_0: entered allmulticast mode [ 112.599518][ T5794] bridge_slave_0: entered promiscuous mode [ 112.601825][ T5794] bridge0: port 2(bridge_slave_1) entered blocking state [ 112.601964][ T5794] bridge0: port 2(bridge_slave_1) entered disabled state [ 112.602067][ T5794] bridge_slave_1: entered allmulticast mode [ 112.603828][ T5794] bridge_slave_1: entered promiscuous mode [ 112.682509][ T5794] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 112.699737][ T5794] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 112.746494][ T5794] team0: Port device team_slave_0 added [ 112.968882][ T5794] team0: Port device team_slave_1 added [ 113.069105][ T5794] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 113.069123][ T5794] batman_adv: batadv0: The MTU of interface batadv_slave_0 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 1532 would solve the problem. [ 113.069149][ T5794] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 113.071191][ T5794] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 113.071204][ T5794] 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 1532 would solve the problem. [ 113.071227][ T5794] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 113.240577][ T5794] hsr_slave_0: entered promiscuous mode [ 113.241596][ T5794] hsr_slave_1: entered promiscuous mode [ 114.017823][ T4911] Bluetooth: hci0: command tx timeout [ 115.830473][ T5794] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 115.878508][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 115.880180][ T5794] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 115.929742][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 115.931194][ T5794] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 115.967323][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 115.969184][ T5794] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 116.003228][ T5794] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 116.094315][ T4911] Bluetooth: hci0: command tx timeout [ 116.272139][ T5794] 8021q: adding VLAN 0 to HW filter on device bond0 [ 116.321658][ T5794] 8021q: adding VLAN 0 to HW filter on device team0 [ 116.341411][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 116.341718][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 116.379558][ T39] bridge0: port 2(bridge_slave_1) entered blocking state [ 116.380115][ T39] bridge0: port 2(bridge_slave_1) entered forwarding state [ 117.124063][ T5794] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 117.222326][ T5794] veth0_vlan: entered promiscuous mode [ 117.251650][ T5794] veth1_vlan: entered promiscuous mode [ 117.310851][ T5794] veth0_macvtap: entered promiscuous mode [ 117.340003][ T5794] veth1_macvtap: entered promiscuous mode [ 117.381098][ T5794] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 117.403296][ T5794] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 117.449064][ T175] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.476682][ T175] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.493247][ T175] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.504144][ T175] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 117.974503][ T175] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 117.974524][ T175] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 118.092766][ T1178] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 118.092786][ T1178] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 118.175779][ T4911] Bluetooth: hci0: command tx timeout 2026/07/03 13:10:33 executed programs: 2 [ 118.788864][ T5927] loop0: detected capacity change from 0 to 32768 [ 119.728291][ T5951] loop0: detected capacity change from 0 to 32768 [ 120.117359][ T5952] loop0: detected capacity change from 0 to 32768 [ 120.256084][ T4911] Bluetooth: hci0: command tx timeout [ 120.566939][ T5953] loop0: detected capacity change from 0 to 32768 [ 121.017583][ T5954] loop0: detected capacity change from 0 to 32768 [ 121.433038][ T5955] loop0: detected capacity change from 0 to 32768 [ 121.522045][ C0] ================================================================== [ 121.522056][ C0] BUG: KASAN: slab-use-after-free in lbmIODone+0x130e/0x16b0 [ 121.522090][ C0] Read of size 4 at addr ffff88802b0d5608 by task rcuc/0/20 [ 121.522102][ C0] [ 121.522118][ C0] CPU: 0 UID: 0 PID: 20 Comm: rcuc/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 121.522134][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 121.522148][ C0] Call Trace: [ 121.522153][ C0] [ 121.522159][ C0] dump_stack_lvl+0xe8/0x150 [ 121.522183][ C0] print_address_description+0x55/0x1e0 [ 121.522206][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.522225][ C0] print_report+0x58/0x70 [ 121.522245][ C0] kasan_report+0x117/0x150 [ 121.522262][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.522284][ C0] lbmIODone+0x130e/0x16b0 [ 121.522304][ C0] ? blkg_put+0x22/0x240 [ 121.522324][ C0] ? blkg_put+0x22/0x240 [ 121.522344][ C0] ? blkg_put+0x18d/0x240 [ 121.522364][ C0] ? bio_endio+0x980/0x9d0 [ 121.522378][ C0] blk_update_request+0x57b/0xe50 [ 121.522397][ C0] blk_mq_end_request+0x3e/0x70 [ 121.522411][ C0] blk_done_softirq+0x10a/0x160 [ 121.522434][ C0] handle_softirqs+0x1d9/0x6c0 [ 121.522454][ C0] __local_bh_enable_ip+0x170/0x2b0 [ 121.522470][ C0] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 121.522490][ C0] ? rcu_cpu_kthread+0x20b/0x1480 [ 121.522514][ C0] rcu_cpu_kthread+0x99f/0x1480 [ 121.522549][ C0] ? rcu_cpu_kthread+0x20b/0x1480 [ 121.522568][ C0] ? __pfx_rcu_cpu_kthread+0x10/0x10 [ 121.522585][ C0] ? schedule+0x90/0x2b0 [ 121.522606][ C0] smpboot_thread_fn+0x57c/0xa80 [ 121.522627][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 121.522650][ C0] kthread+0x388/0x470 [ 121.522671][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 121.522690][ C0] ? __pfx_kthread+0x10/0x10 [ 121.522712][ C0] ret_from_fork+0x514/0xb70 [ 121.522736][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 121.522758][ C0] ? __switch_to+0xc89/0x1420 [ 121.522779][ C0] ? __pfx_kthread+0x10/0x10 [ 121.522801][ C0] ret_from_fork_asm+0x1a/0x30 [ 121.522821][ C0] [ 121.522826][ C0] [ 121.522830][ C0] Allocated by task 5955: [ 121.522836][ C0] kasan_save_track+0x3e/0x80 [ 121.522849][ C0] __kasan_kmalloc+0x93/0xb0 [ 121.522861][ C0] __kmalloc_cache_noprof+0x3d2/0x6b0 [ 121.522875][ C0] lmLogInit+0x3e5/0x1a20 [ 121.522893][ C0] lmLogOpen+0x4e3/0xf90 [ 121.522910][ C0] jfs_mount_rw+0xf3/0x670 [ 121.522928][ C0] jfs_fill_super+0x769/0xda0 [ 121.522941][ C0] get_tree_bdev_flags+0x430/0x4f0 [ 121.522958][ C0] vfs_get_tree+0x92/0x2a0 [ 121.522974][ C0] do_new_mount+0x319/0xdc0 [ 121.522997][ C0] __se_sys_mount+0x31d/0x420 [ 121.523011][ C0] do_syscall_64+0x174/0x580 [ 121.523031][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 121.523045][ C0] [ 121.523048][ C0] Freed by task 5794: [ 121.523055][ C0] kasan_save_track+0x3e/0x80 [ 121.523066][ C0] kasan_save_free_info+0x40/0x50 [ 121.523084][ C0] __kasan_slab_free+0x5c/0x80 [ 121.523096][ C0] kfree+0x1c5/0x6c0 [ 121.523116][ C0] lmLogShutdown+0x456/0x850 [ 121.523135][ C0] lmLogClose+0x28c/0x530 [ 121.523154][ C0] jfs_umount+0x2da/0x3b0 [ 121.523171][ C0] jfs_put_super+0x8c/0x190 [ 121.523184][ C0] generic_shutdown_super+0x13d/0x2d0 [ 121.523198][ C0] kill_block_super+0x44/0x90 [ 121.523214][ C0] deactivate_locked_super+0xbc/0x130 [ 121.523228][ C0] cleanup_mnt+0x3d3/0x460 [ 121.523242][ C0] task_work_run+0x1d9/0x270 [ 121.523265][ C0] exit_to_user_mode_loop+0x1fa/0x730 [ 121.523278][ C0] do_syscall_64+0x353/0x580 [ 121.523296][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 121.523310][ C0] [ 121.523313][ C0] The buggy address belongs to the object at ffff88802b0d5600 [ 121.523313][ C0] which belongs to the cache kmalloc-256 of size 256 [ 121.523325][ C0] The buggy address is located 8 bytes inside of [ 121.523325][ C0] freed 256-byte region [ffff88802b0d5600, ffff88802b0d5700) [ 121.523340][ C0] [ 121.523343][ C0] The buggy address belongs to the physical page: [ 121.523357][ C0] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2b0d4 [ 121.523370][ C0] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 121.523382][ C0] flags: 0x80000000000040(head|node=0|zone=1) [ 121.523397][ C0] page_type: f5(slab) [ 121.523411][ C0] raw: 0080000000000040 ffff88813ffb4b40 dead000000000100 dead000000000122 [ 121.523425][ C0] raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 [ 121.523439][ C0] head: 0080000000000040 ffff88813ffb4b40 dead000000000100 dead000000000122 [ 121.523451][ C0] head: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 [ 121.523465][ C0] head: 0080000000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff [ 121.523477][ C0] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000002 [ 121.523485][ C0] page dumped because: kasan: bad access detected [ 121.523495][ C0] page_owner tracks the page as allocated [ 121.523500][ C0] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 15211578518, free_ts 0 [ 121.523528][ C0] post_alloc_hook+0x1f9/0x250 [ 121.523550][ C0] get_page_from_freelist+0x262a/0x26a0 [ 121.523566][ C0] __alloc_frozen_pages_noprof+0x18d/0x380 [ 121.523581][ C0] allocate_slab+0x79/0x5e0 [ 121.523598][ C0] refill_objects+0x2d8/0x350 [ 121.523616][ C0] __pcs_replace_empty_main+0x330/0x690 [ 121.523634][ C0] __kmalloc_cache_noprof+0x468/0x6b0 [ 121.523647][ C0] usb_string+0x108/0x790 [ 121.523666][ C0] usb_cache_string+0x7d/0xf0 [ 121.523685][ C0] usb_new_device+0x2cd/0x1610 [ 121.523703][ C0] register_root_hub+0x250/0x5c0 [ 121.523730][ C0] usb_add_hcd+0xac7/0xf80 [ 121.523744][ C0] vhci_hcd_probe+0x141/0x3f0 [ 121.523759][ C0] platform_probe+0xf9/0x190 [ 121.523773][ C0] really_probe+0x254/0xae0 [ 121.523789][ C0] __driver_probe_device+0x1e8/0x360 [ 121.523804][ C0] page_owner free stack trace missing [ 121.523809][ C0] [ 121.523812][ C0] Memory state around the buggy address: [ 121.523819][ C0] ffff88802b0d5500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 121.523828][ C0] ffff88802b0d5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 121.523838][ C0] >ffff88802b0d5600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.523845][ C0] ^ [ 121.523851][ C0] ffff88802b0d5680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.523860][ C0] ffff88802b0d5700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 121.523867][ C0] ================================================================== [ 121.523890][ C0] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 121.523900][ C0] CPU: 0 UID: 0 PID: 20 Comm: rcuc/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 121.523915][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 121.523923][ C0] Call Trace: [ 121.523928][ C0] [ 121.523933][ C0] vpanic+0x56c/0xa60 [ 121.523947][ C0] ? __pfx_vpanic+0x10/0x10 [ 121.523960][ C0] ? __pfx___schedule+0x10/0x10 [ 121.523979][ C0] panic+0xc5/0xd0 [ 121.523991][ C0] ? __pfx_panic+0x10/0x10 [ 121.524004][ C0] ? preempt_schedule_thunk+0x16/0x40 [ 121.524025][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.524044][ C0] check_panic_on_warn+0x89/0xb0 [ 121.524066][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.524086][ C0] end_report+0x73/0x170 [ 121.524100][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.524119][ C0] kasan_report+0x128/0x150 [ 121.524135][ C0] ? lbmIODone+0x130e/0x16b0 [ 121.524157][ C0] lbmIODone+0x130e/0x16b0 [ 121.524202][ C0] ? blkg_put+0x22/0x240 [ 121.524229][ C0] ? blkg_put+0x22/0x240 [ 121.524256][ C0] ? blkg_put+0x18d/0x240 [ 121.524285][ C0] ? bio_endio+0x980/0x9d0 [ 121.524308][ C0] blk_update_request+0x57b/0xe50 [ 121.524327][ C0] blk_mq_end_request+0x3e/0x70 [ 121.524360][ C0] blk_done_softirq+0x10a/0x160 [ 121.524385][ C0] handle_softirqs+0x1d9/0x6c0 [ 121.524406][ C0] __local_bh_enable_ip+0x170/0x2b0 [ 121.524423][ C0] ? __pfx_slab_free_after_rcu_debug+0x10/0x10 [ 121.524443][ C0] ? rcu_cpu_kthread+0x20b/0x1480 [ 121.524458][ C0] rcu_cpu_kthread+0x99f/0x1480 [ 121.524477][ C0] ? rcu_cpu_kthread+0x20b/0x1480 [ 121.524496][ C0] ? __pfx_rcu_cpu_kthread+0x10/0x10 [ 121.524518][ C0] ? schedule+0x90/0x2b0 [ 121.524538][ C0] smpboot_thread_fn+0x57c/0xa80 [ 121.524559][ C0] ? smpboot_thread_fn+0x4e/0xa80 [ 121.524581][ C0] kthread+0x388/0x470 [ 121.524602][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 121.524621][ C0] ? __pfx_kthread+0x10/0x10 [ 121.524643][ C0] ret_from_fork+0x514/0xb70 [ 121.524667][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 121.524689][ C0] ? __switch_to+0xc89/0x1420 [ 121.524709][ C0] ? __pfx_kthread+0x10/0x10 [ 121.524730][ C0] ret_from_fork_asm+0x1a/0x30 [ 121.524751][ C0] [ 121.525344][ C0] Kernel Offset: disabled