last executing test programs:
kernel console output (not intermixed with test programs):
Warning: Permanently added '10.128.1.185' (ED25519) to the list of known hosts.
[ 51.092441][ T29] audit: type=1400 audit(1778383128.282:62): avc: denied { mounton } for pid=2961 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1
[ 51.116129][ T29] audit: type=1400 audit(1778383128.302:63): avc: denied { mount } for pid=2961 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 51.126329][ T2961] cgroup: Unknown subsys name 'net'
[ 51.146370][ T29] audit: type=1400 audit(1778383128.342:64): avc: denied { unmount } for pid=2961 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1
[ 51.311533][ T2961] cgroup: Unknown subsys name 'cpuset'
[ 51.320401][ T2961] cgroup: Unknown subsys name 'rlimit'
[ 51.430639][ T50] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
[ 51.440586][ T50] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 50, name: kworker/u8:4
[ 51.450288][ T50] preempt_count: 0, expected: 0
[ 51.455296][ T50] RCU nest depth: 1, expected: 0
[ 51.460907][ T50] 4 locks held by kworker/u8:4/50:
[ 51.466414][ T50] #0: ffff888100e9d140 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980
[ 51.477592][ T50] #1: ffffc90000537d18 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x973/0x1980
[ 51.489812][ T50] #2: ffff8881012bc0d8 (&type->s_umount_key#33){.+.+}-{4:4}, at: super_trylock_shared+0x1e/0xf0
[ 51.500700][ T50] #3: ffffffff896de8e0 (rcu_read_lock){....}-{1:3}, at: folio_clear_dirty_for_io+0x1eb/0x7f0
[ 51.511435][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full)
[ 51.511472][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 51.511497][ T50] Workqueue: writeback wb_workfn (flush-8:0)
[ 51.511560][ T50] Call Trace:
[ 51.511571][ T50]
[ 51.511586][ T50] dump_stack_lvl+0x100/0x190
[ 51.511637][ T50] __might_resched.cold+0x1ec/0x232
[ 51.511683][ T50] ? __pfx___might_resched+0x10/0x10
[ 51.511713][ T50] ? fs_reclaim_acquire+0x70/0x100
[ 51.511752][ T50] mempool_alloc_noprof+0x220/0x310
[ 51.511797][ T50] ? __pfx_mempool_alloc_noprof+0x10/0x10
[ 51.511840][ T50] ? find_held_lock+0x2b/0x80
[ 51.511876][ T50] ? rcu_read_unlock+0x17/0x60
[ 51.511913][ T50] ? rcu_read_unlock+0x17/0x60
[ 51.511954][ T50] bio_alloc_bioset+0x8d5/0x1050
[ 51.512004][ T50] ? __pfx_bio_alloc_bioset+0x10/0x10
[ 51.512070][ T50] submit_bh_wbc+0x250/0x710
[ 51.512112][ T50] __block_write_full_folio+0x77f/0xee0
[ 51.512159][ T50] ? __pfx_blkdev_get_block+0x10/0x10
[ 51.512204][ T50] block_write_full_folio+0x3b5/0x4e0
[ 51.512250][ T50] ? __pfx_blkdev_get_block+0x10/0x10
[ 51.512313][ T50] blkdev_writepages+0xc7/0x150
[ 51.512357][ T50] ? __pfx_blkdev_writepages+0x10/0x10
[ 51.512414][ T50] ? lockdep_unlock+0x5a/0xc0
[ 51.512454][ T50] ? __pfx_blkdev_writepages+0x10/0x10
[ 51.512499][ T50] do_writepages+0x278/0x600
[ 51.512550][ T50] ? __pfx_do_writepages+0x10/0x10
[ 51.512610][ T50] __writeback_single_inode+0x164/0x1350
[ 51.512658][ T50] ? find_held_lock+0x2b/0x80
[ 51.512702][ T50] ? __pfx___writeback_single_inode+0x10/0x10
[ 51.512749][ T50] ? do_raw_spin_unlock+0x145/0x1e0
[ 51.512792][ T50] writeback_sb_inodes+0x766/0x1c60
[ 51.512858][ T50] ? __pfx_writeback_sb_inodes+0x10/0x10
[ 51.512980][ T50] ? __pfx___up_read+0x10/0x10
[ 51.513016][ T50] ? __writeback_inodes_wb+0x104/0x2d0
[ 51.513080][ T50] __writeback_inodes_wb+0xf8/0x2d0
[ 51.513136][ T50] ? __pfx___writeback_inodes_wb+0x10/0x10
[ 51.513186][ T50] ? queue_io+0x287/0x540
[ 51.513231][ T50] wb_writeback+0x720/0xb90
[ 51.513292][ T50] ? __pfx_wb_writeback+0x10/0x10
[ 51.513348][ T50] ? get_nr_inodes+0x100/0x150
[ 51.513384][ T50] ? _raw_spin_unlock_irq+0x23/0x50
[ 51.513422][ T50] wb_workfn+0x8dd/0xc00
[ 51.513475][ T50] ? __pfx___schedule+0x10/0x10
[ 51.513512][ T50] ? __pfx_wb_workfn+0x10/0x10
[ 51.513570][ T50] ? preempt_schedule_thunk+0x16/0x30
[ 51.513632][ T50] process_one_work+0xa0e/0x1980
[ 51.513686][ T50] ? __pfx_process_one_work+0x10/0x10
[ 51.513735][ T50] ? __pfx_wb_workfn+0x10/0x10
[ 51.513789][ T50] worker_thread+0x5ef/0xe50
[ 51.513836][ T50] ? __pfx_worker_thread+0x10/0x10
[ 51.513874][ T50] ? kthread+0x13a/0x450
[ 51.513902][ T50] ? __pfx_worker_thread+0x10/0x10
[ 51.513935][ T50] kthread+0x370/0x450
[ 51.513965][ T50] ? __pfx_kthread+0x10/0x10
[ 51.513999][ T50] ret_from_fork+0x69a/0xc80
[ 51.514048][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 51.514092][ T50] ? __switch_to+0x7f6/0x1100
[ 51.514152][ T50] ? __switch_to_asm+0x39/0x70
[ 51.514192][ T50] ? __pfx_kthread+0x10/0x10
[ 51.514222][ T50] ret_from_fork_asm+0x1a/0x30
[ 51.514280][ T50]
[ 51.517735][ T50] BUG: workqueue leaked atomic, lock or RCU: kworker/u8:4[50]
[ 51.517735][ T50] preempt=0x00000000 lock=0->1 RCU=0->1 workfn=wb_workfn
[ 51.605873][ T29] audit: type=1400 audit(1778383128.802:65): avc: denied { setattr } for pid=2961 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=236 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1
[ 51.610267][ T50] 1 lock held by kworker/u8:4/50:
[ 51.610291][ T50] #0:
[ 51.629696][ T29] audit: type=1400 audit(1778383128.812:66): avc: denied { mounton } for pid=2961 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1
[ 51.632083][ T50] ffffffff896de8e0
[ 51.641534][ T29] audit: type=1400 audit(1778383128.812:67): avc: denied { mount } for pid=2961 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1
[ 51.648841][ T50] (
[ 51.862736][ T2963] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped).
[ 51.872645][ T50] rcu_read_lock
[ 51.883586][ T29] audit: type=1400 audit(1778383129.072:68): avc: denied { relabelto } for pid=2963 comm="mkswap" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 51.905176][ T50] ){....}-{1:3}, at: folio_clear_dirty_for_io+0x1eb/0x7f0
[ 51.915949][ T29] audit: type=1400 audit(1778383129.102:69): avc: denied { write } for pid=2963 comm="mkswap" path="/root/swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 51.933585][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 51.933698][ T50] Tainted: [W]=WARN
[ 51.933730][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 51.933786][ T50] Workqueue: writeback wb_workfn (flush-8:0)
[ 51.933940][ T50] Call Trace:
[ 51.933961][ T50]
[ 51.933992][ T50] dump_stack_lvl+0x100/0x190
[ 51.934088][ T50] ? __pfx_wb_workfn+0x10/0x10
[ 51.934204][ T50] process_one_work.cold+0x127/0x306
[ 51.934315][ T50] ? __pfx_wb_workfn+0x10/0x10
[ 51.934476][ T50] ? __pfx_process_one_work+0x10/0x10
[ 51.934592][ T50] ? __pfx_wb_workfn+0x10/0x10
[ 51.934726][ T50] worker_thread+0x5ef/0xe50
[ 51.934798][ T50] ? __pfx_worker_thread+0x10/0x10
[ 51.934827][ T50] ? kthread+0x13a/0x450
[ 51.934847][ T50] ? __pfx_worker_thread+0x10/0x10
[ 51.934872][ T50] kthread+0x370/0x450
[ 51.934894][ T50] ? __pfx_kthread+0x10/0x10
[ 51.934921][ T50] ret_from_fork+0x69a/0xc80
[ 51.934954][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 51.934988][ T50] ? __switch_to+0x7f6/0x1100
[ 51.935033][ T50] ? __switch_to_asm+0x39/0x70
[ 51.935066][ T50] ? __pfx_kthread+0x10/0x10
[ 51.935090][ T50] ret_from_fork_asm+0x1a/0x30
[ 51.935137][ T50]
[ 51.936015][ T50]
[ 52.133450][ T50] =============================
[ 52.138308][ T50] [ BUG: Invalid wait context ]
[ 52.143149][ T50] syzkaller #0 Tainted: G W
[ 52.149120][ T50] -----------------------------
[ 52.153964][ T50] kworker/u8:4/50 is trying to lock:
[ 52.159247][ T50] ffff88811bb071d0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_map_blocks+0x45a/0xd30
[ 52.168488][ T50] other info that might help us debug this:
[ 52.174375][ T50] context-{5:5}
[ 52.177827][ T50] 4 locks held by kworker/u8:4/50:
[ 52.182935][ T50] #0: ffffffff896de8e0 (rcu_read_lock){....}-{1:3}, at: folio_clear_dirty_for_io+0x1eb/0x7f0
[ 52.193233][ T50] #1: ffff888113550940 ((wq_completion)ext4-rsv-conversion){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980
[ 52.204825][ T50] #2: ffffc90000537d18 ((work_completion)(&ei->i_rsv_conversion_work)){+.+.}-{0:0}, at: process_one_work+0x973/0x1980
[ 52.217288][ T50] #3: ffff888116262938 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0xfaa/0x13a0
[ 52.227075][ T50] stack backtrace:
[ 52.230801][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 52.230832][ T50] Tainted: [W]=WARN
[ 52.230840][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 52.230855][ T50] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
[ 52.230892][ T50] Call Trace:
[ 52.230901][ T50]
[ 52.230910][ T50] dump_stack_lvl+0x100/0x190
[ 52.230934][ T50] __lock_acquire+0xfa4/0x2630
[ 52.230991][ T50] lock_acquire+0x1b1/0x370
[ 52.231025][ T50] ? ext4_map_blocks+0x45a/0xd30
[ 52.231046][ T50] ? __pfx___might_resched+0x10/0x10
[ 52.231070][ T50] down_write+0x8b/0x1f0
[ 52.231099][ T50] ? ext4_map_blocks+0x45a/0xd30
[ 52.231119][ T50] ? __pfx_down_write+0x10/0x10
[ 52.231150][ T50] ext4_map_blocks+0x45a/0xd30
[ 52.231172][ T50] ? __pfx_ext4_map_blocks+0x10/0x10
[ 52.231195][ T50] ? __pfx_start_this_handle+0x10/0x10
[ 52.231228][ T50] ext4_convert_unwritten_extents+0x2a6/0x4d0
[ 52.231264][ T50] ? __pfx_ext4_convert_unwritten_extents+0x10/0x10
[ 52.231297][ T50] ? jbd2_journal_start_reserved+0x221/0x460
[ 52.231331][ T50] ? __ext4_journal_start_reserved+0x1a8/0x500
[ 52.231358][ T50] ? ext4_convert_unwritten_io_end_vec+0x3d/0x280
[ 52.231394][ T50] ext4_convert_unwritten_io_end_vec+0x121/0x280
[ 52.231431][ T50] ext4_end_io_end+0xd3/0x4b0
[ 52.231462][ T50] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 52.231487][ T50] ext4_end_io_rsv_work+0x205/0x380
[ 52.231521][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.231556][ T50] ? rcu_is_watching+0x12/0xc0
[ 52.231583][ T50] process_one_work+0xa0e/0x1980
[ 52.231611][ T50] ? __pfx_process_one_work+0x10/0x10
[ 52.231638][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.231673][ T50] worker_thread+0x5ef/0xe50
[ 52.231698][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.231721][ T50] ? kthread+0x13a/0x450
[ 52.231740][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.231761][ T50] kthread+0x370/0x450
[ 52.231791][ T50] ? __pfx_kthread+0x10/0x10
[ 52.231810][ T50] ret_from_fork+0x69a/0xc80
[ 52.231835][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 52.231860][ T50] ? __switch_to+0x7f6/0x1100
[ 52.231891][ T50] ? __switch_to_asm+0x39/0x70
[ 52.231918][ T50] ? __pfx_kthread+0x10/0x10
[ 52.231937][ T50] ret_from_fork_asm+0x1a/0x30
[ 52.231970][ T50]
[ 52.462164][ T50] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:323
[ 52.471876][ T50] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 50, name: kworker/u8:4
[ 52.480953][ T50] preempt_count: 0, expected: 0
[ 52.485828][ T50] RCU nest depth: 1, expected: 0
[ 52.490809][ T50] INFO: lockdep is turned off.
[ 52.495594][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 52.495626][ T50] Tainted: [W]=WARN
[ 52.495632][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 52.495647][ T50] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
[ 52.495690][ T50] Call Trace:
[ 52.495696][ T50]
Setting up swapspace version 1, size = 127995904 bytes
[ 52.495704][ T50] dump_stack_lvl+0x100/0x190
[ 52.495728][ T50] __might_resched.cold+0x1ec/0x232
[ 52.495762][ T50] ? __pfx___might_resched+0x10/0x10
[ 52.495785][ T50] ? lock_release+0x245/0x310
[ 52.495805][ T50] ? ext4_find_extent+0x21b/0xa30
[ 52.495833][ T50] __kmalloc_noprof+0x55e/0x810
[ 52.495866][ T50] ? _printk+0xcf/0x110
[ 52.495891][ T50] ext4_find_extent+0x21b/0xa30
[ 52.495923][ T50] ext4_ext_map_blocks+0x20a/0x5930
[ 52.495957][ T50] ? is_printk_legacy_deferred+0x52/0x60
[ 52.495988][ T50] ? printk_get_console_flush_type+0x432/0x9f0
[ 52.496021][ T50] ? printk_percpu_data_ready+0x9/0x20
[ 52.496046][ T50] ? nbcon_cpu_emergency_exit+0x127/0x1e0
[ 52.496081][ T50] ? rcu_is_watching+0x12/0xc0
[ 52.496107][ T50] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 52.496145][ T50] ? lock_acquire+0x5e/0x370
[ 52.496185][ T50] ext4_map_create_blocks+0xec/0x5e0
[ 52.496209][ T50] ext4_map_blocks+0x46b/0xd30
[ 52.496231][ T50] ? __pfx_ext4_map_blocks+0x10/0x10
[ 52.496254][ T50] ? __pfx_start_this_handle+0x10/0x10
[ 52.496288][ T50] ext4_convert_unwritten_extents+0x2a6/0x4d0
[ 52.496323][ T50] ? __pfx_ext4_convert_unwritten_extents+0x10/0x10
[ 52.496356][ T50] ? jbd2_journal_start_reserved+0x221/0x460
[ 52.496391][ T50] ? __ext4_journal_start_reserved+0x1a8/0x500
[ 52.496417][ T50] ? ext4_convert_unwritten_io_end_vec+0x3d/0x280
[ 52.496453][ T50] ext4_convert_unwritten_io_end_vec+0x121/0x280
[ 52.496490][ T50] ext4_end_io_end+0xd3/0x4b0
[ 52.496521][ T50] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 52.496547][ T50] ext4_end_io_rsv_work+0x205/0x380
[ 52.496587][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.496622][ T50] ? rcu_is_watching+0x12/0xc0
[ 52.496648][ T50] process_one_work+0xa0e/0x1980
[ 52.496682][ T50] ? __pfx_process_one_work+0x10/0x10
[ 52.496709][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.496744][ T50] worker_thread+0x5ef/0xe50
[ 52.496770][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.496793][ T50] ? kthread+0x13a/0x450
[ 52.496811][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.496833][ T50] kthread+0x370/0x450
[ 52.496851][ T50] ? __pfx_kthread+0x10/0x10
[ 52.496872][ T50] ret_from_fork+0x69a/0xc80
[ 52.496899][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 52.496926][ T50] ? __switch_to+0x7f6/0x1100
[ 52.496959][ T50] ? __switch_to_asm+0x39/0x70
[ 52.496988][ T50] ? __pfx_kthread+0x10/0x10
[ 52.497008][ T50] ret_from_fork_asm+0x1a/0x30
[ 52.497044][ T50]
[ 52.497250][ T50] BUG: workqueue leaked atomic, lock or RCU: kworker/u8:4[50]
[ 52.497250][ T50] preempt=0x00000000 lock=1->0 RCU=1->1 workfn=ext4_end_io_rsv_work
[ 52.573542][ T29] audit: type=1400 audit(1778383129.772:70): avc: denied { read } for pid=2961 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 52.574181][ T50] INFO: lockdep is turned off.
[ 52.574216][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 52.574356][ T50] Tainted: [W]=WARN
[ 52.574385][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 52.574443][ T50] Workqueue: ext4-rsv-conversion ext4_end_io_rsv_work
[ 52.574592][ T50] Call Trace:
[ 52.574620][ T50]
[ 52.574651][ T50] dump_stack_lvl+0x100/0x190
[ 52.574751][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.574884][ T50] process_one_work.cold+0x127/0x306
[ 52.575018][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.575196][ T50] ? __pfx_process_one_work+0x10/0x10
[ 52.575313][ T50] ? __pfx_ext4_end_io_rsv_work+0x10/0x10
[ 52.575457][ T50] worker_thread+0x5ef/0xe50
[ 52.575560][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.575654][ T50] ? kthread+0x13a/0x450
[ 52.575774][ T50] ? __pfx_worker_thread+0x10/0x10
[ 52.575868][ T50] kthread+0x370/0x450
[ 52.575952][ T50] ? __pfx_kthread+0x10/0x10
[ 52.576036][ T50] ret_from_fork+0x69a/0xc80
[ 52.576143][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 52.576243][ T50] ? __switch_to+0x7f6/0x1100
[ 52.576370][ T50] ? __switch_to_asm+0x39/0x70
[ 52.576494][ T50] ? __pfx_kthread+0x10/0x10
[ 52.576561][ T50] ret_from_fork_asm+0x1a/0x30
[ 52.576708][ T50]
[ 52.576785][ T50] ------------[ cut here ]------------
[ 52.581011][ T2961] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 52.585051][ T50] Voluntary context switch within RCU read-side critical section!
[ 52.591691][ T29] audit: type=1400 audit(1778383129.772:71): avc: denied { open } for pid=2961 comm="syz-executor" path="/root/swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t"
[ 52.596688][ T50] WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0x859/0x19c0, CPU#0: kworker/u8:4/50
[ 53.012901][ T50] Modules linked in:
[ 53.016837][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 53.027729][ T50] Tainted: [W]=WARN
[ 53.031568][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 53.041664][ T50] Workqueue: 0x0 (ext4-rsv-conversion)
[ 53.047282][ T50] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 53.053665][ T50] Code: c1 ea 03 80 3c 02 00 0f 85 9b 0b 00 00 48 8b 53 28 b9 01 00 00 00 4c 89 ef e8 a3 cf fe ff e9 1d f9 ff ff 48 8d 3d 27 29 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 53.073327][ T50] RSP: 0018:ffffc90000537c10 EFLAGS: 00010002
[ 53.079445][ T50] RAX: 0000000000000001 RBX: ffff8881f563a540 RCX: ffffffff81987a21
[ 53.087464][ T50] RDX: 0000000000000000 RSI: ffffffff87b08ce0 RDI: ffffffff8af21770
[ 53.095564][ T50] RBP: ffff888103eb8000 R08: 0000000000000000 R09: fffffbfff15e10da
[ 53.103570][ T50] R10: ffffffff8af086d7 R11: 0000000000000001 R12: 0000000000000000
[ 53.111578][ T50] R13: ffff888103eb847c R14: ffffffff8cf91680 R15: ffffffff8af09664
[ 53.119588][ T50] FS: 0000000000000000(0000) GS:ffff8882686a8000(0000) knlGS:0000000000000000
[ 53.129257][ T50] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 53.135884][ T50] CR2: 000055d53982e008 CR3: 0000000117564000 CR4: 00000000003506f0
[ 53.143924][ T50] Call Trace:
[ 53.147243][ T50]
[ 53.150208][ T50] ? put_pwq+0x90/0x130
[ 53.154422][ T50] ? __schedule+0x1b85/0x4840
[ 53.159160][ T50] ? rcu_is_watching+0x12/0xc0
[ 53.163974][ T50] __schedule+0x25e/0x4840
[ 53.168441][ T50] ? __pfx___schedule+0x10/0x10
[ 53.173347][ T50] ? rcu_is_watching+0x12/0xc0
[ 53.178159][ T50] ? schedule+0x2bf/0x390
[ 53.182528][ T50] ? lock_release+0x245/0x310
[ 53.187247][ T50] schedule+0xdd/0x390
[ 53.191356][ T50] ? worker_thread+0x4c0/0xe50
[ 53.196166][ T50] worker_thread+0x53b/0xe50
[ 53.200815][ T50] ? __pfx_worker_thread+0x10/0x10
[ 53.205974][ T50] ? kthread+0x13a/0x450
[ 53.210252][ T50] ? __pfx_worker_thread+0x10/0x10
[ 53.215429][ T50] kthread+0x370/0x450
[ 53.219518][ T50] ? __pfx_kthread+0x10/0x10
[ 53.224130][ T50] ret_from_fork+0x69a/0xc80
[ 53.228748][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 53.233910][ T50] ? __switch_to+0x7f6/0x1100
[ 53.238635][ T50] ? __switch_to_asm+0x39/0x70
[ 53.243623][ T50] ? __pfx_kthread+0x10/0x10
[ 53.248279][ T50] ret_from_fork_asm+0x1a/0x30
[ 53.253201][ T50]
[ 53.256242][ T50] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 53.263541][ T50] CPU: 0 UID: 0 PID: 50 Comm: kworker/u8:4 Tainted: G W syzkaller #0 PREEMPT(full)
[ 53.274426][ T50] Tainted: [W]=WARN
[ 53.278363][ T50] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 53.288449][ T50] Workqueue: 0x0 (ext4-rsv-conversion)
[ 53.294056][ T50] Call Trace:
[ 53.297362][ T50]
[ 53.300319][ T50] dump_stack_lvl+0x100/0x190
[ 53.305038][ T50] vpanic+0x552/0x970
[ 53.309057][ T50] ? __pfx_vpanic+0x10/0x10
[ 53.313592][ T50] ? lock_release+0x245/0x310
[ 53.318299][ T50] panic+0xd1/0xe0
[ 53.322050][ T50] ? __pfx_panic+0x10/0x10
[ 53.326510][ T50] ? check_panic_on_warn+0x1f/0x90
[ 53.331655][ T50] check_panic_on_warn.cold+0x19/0x34
[ 53.337064][ T50] ? rcu_note_context_switch+0x859/0x19c0
[ 53.342812][ T50] __warn.cold+0x191/0x328
[ 53.347352][ T50] __report_bug+0x296/0x3d0
[ 53.351896][ T50] ? rcu_note_context_switch+0x859/0x19c0
[ 53.357651][ T50] ? __pfx___report_bug+0x10/0x10
[ 53.362719][ T50] ? trace_rcu_utilization+0x31/0x240
[ 53.368138][ T50] ? is_bpf_text_address+0x8a/0x1a0
[ 53.373376][ T50] ? lock_release+0x245/0x310
[ 53.378074][ T50] ? bpf_ksym_find+0x128/0x1c0
[ 53.382982][ T50] report_bug_entry+0xe1/0x290
[ 53.387782][ T50] ? rcu_note_context_switch+0x859/0x19c0
[ 53.393534][ T50] handle_bug+0x1cd/0x2a0
[ 53.397901][ T50] exc_invalid_op+0x17/0x50
[ 53.402439][ T50] asm_exc_invalid_op+0x1a/0x20
[ 53.407317][ T50] RIP: 0010:rcu_note_context_switch+0x859/0x19c0
[ 53.413668][ T50] Code: c1 ea 03 80 3c 02 00 0f 85 9b 0b 00 00 48 8b 53 28 b9 01 00 00 00 4c 89 ef e8 a3 cf fe ff e9 1d f9 ff ff 48 8d 3d 27 29 59 09 <67> 48 0f b9 3a e9 99 f8 ff ff 48 b8 00 00 00 00 00 fc ff df 48 8d
[ 53.433332][ T50] RSP: 0018:ffffc90000537c10 EFLAGS: 00010002
[ 53.439428][ T50] RAX: 0000000000000001 RBX: ffff8881f563a540 RCX: ffffffff81987a21
[ 53.447416][ T50] RDX: 0000000000000000 RSI: ffffffff87b08ce0 RDI: ffffffff8af21770
[ 53.455409][ T50] RBP: ffff888103eb8000 R08: 0000000000000000 R09: fffffbfff15e10da
[ 53.463406][ T50] R10: ffffffff8af086d7 R11: 0000000000000001 R12: 0000000000000000
[ 53.471398][ T50] R13: ffff888103eb847c R14: ffffffff8cf91680 R15: ffffffff8af09664
[ 53.479394][ T50] ? trace_rcu_utilization+0x31/0x240
[ 53.484805][ T50] ? put_pwq+0x90/0x130
[ 53.489005][ T50] ? __schedule+0x1b85/0x4840
[ 53.493705][ T50] ? rcu_is_watching+0x12/0xc0
[ 53.498507][ T50] __schedule+0x25e/0x4840
[ 53.502958][ T50] ? __pfx___schedule+0x10/0x10
[ 53.507893][ T50] ? rcu_is_watching+0x12/0xc0
[ 53.512709][ T50] ? schedule+0x2bf/0x390
[ 53.517080][ T50] ? lock_release+0x245/0x310
[ 53.521780][ T50] schedule+0xdd/0x390
[ 53.525972][ T50] ? worker_thread+0x4c0/0xe50
[ 53.530770][ T50] worker_thread+0x53b/0xe50
[ 53.535401][ T50] ? __pfx_worker_thread+0x10/0x10
[ 53.540539][ T50] ? kthread+0x13a/0x450
[ 53.544810][ T50] ? __pfx_worker_thread+0x10/0x10
[ 53.549957][ T50] kthread+0x370/0x450
[ 53.554051][ T50] ? __pfx_kthread+0x10/0x10
[ 53.558667][ T50] ret_from_fork+0x69a/0xc80
[ 53.563285][ T50] ? __pfx_ret_from_fork+0x10/0x10
[ 53.568440][ T50] ? __switch_to+0x7f6/0x1100
[ 53.573159][ T50] ? __switch_to_asm+0x39/0x70
[ 53.577950][ T50] ? __pfx_kthread+0x10/0x10
[ 53.582560][ T50] ret_from_fork_asm+0x1a/0x30
[ 53.587364][ T50]
[ 53.590952][ T50] Kernel Offset: disabled
[ 53.595286][ T50] Rebooting in 86400 seconds..