[ 65.682893][ T22] Code: d3 ed e9 b4 e9 6d f8 49 8d 0e 48 83 e1 f8 4c 8b 21 41 8d 0e 83 e1 07 c1 e1 03 49 d3 ec e9 0a f7 6d f8 49 8d 4d 00 48 83 e1 f8 <4c> 8b 21 41 8d 4d 00 83 e1 07 c1 e1 03 49 d3 ec e9 fa 00 6e f8 bd [ 65.682914][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 65.682932][ T22] RAX: 0000000036736376 RBX: ffff888035e10c00 RCX: ffff88823bd78020 [ 65.682947][ T22] RDX: ffffed1006bc2187 RSI: 0000000000000004 RDI: 0000000000000007 [ 65.682961][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff888035e10c30 [ 65.682974][ T22] R10: ffffed1006bc2186 R11: 0000000000000000 R12: ffff88823bd78020 [ 65.682987][ T22] R13: ffff88823bd78020 R14: ffff888035e10c30 R15: dffffc0000000000 [ 65.683001][ T22] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 65.683023][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.683039][ T22] CR2: ffff88823bd78020 CR3: 000000000b68e000 CR4: 00000000001506f0 [ 65.683054][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.683066][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.683089][ T22] Call Trace: [ 65.683100][ T22] d_lookup+0xd8/0x170 [ 65.683124][ T22] lookup_dcache+0x1e/0x130 [ 65.683145][ T22] __lookup_hash+0x29/0x180 [ 65.683167][ T22] kern_path_locked+0x17e/0x320 [ 65.683192][ T22] ? filename_lookup+0x80/0x80 [ 65.683217][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.683240][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.683261][ T22] handle_remove+0xa2/0x5fe [ 65.683285][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.683306][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 65.683338][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.683362][ T22] ? trace_hardirqs_on+0x5b/0x1c0 [ 65.683387][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.683411][ T22] ? __switch_to+0x5cc/0x1060 [ 65.683436][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.683458][ T22] ? lock_acquire+0x442/0x510 [ 65.683481][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.683504][ T22] ? lock_release+0x522/0x720 [ 65.683526][ T22] ? devtmpfsd+0xaa/0x2a3 [ 65.683548][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.683571][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 65.683597][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 65.683624][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.683646][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 65.683671][ T22] kthread+0x3e5/0x4d0 [ 65.683696][ T22] ? set_kthread_struct+0x130/0x130 [ 65.683722][ T22] ret_from_fork+0x1f/0x30 [ 65.683752][ T22] ================================================================== [ 65.683761][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 65.683771][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 65.683795][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.683807][ T22] Call Trace: [ 65.683814][ T22] dump_stack_lvl+0xcd/0x134 [ 65.683837][ T22] panic+0x306/0x73d [ 65.683884][ T22] ? __warn_printk+0xf3/0xf3 [ 65.683909][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 65.683936][ T22] kfence_report_error.cold+0x304/0xa56 [ 65.683960][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 65.683989][ T22] ? kfence_print_object+0x350/0x350 [ 65.684012][ T22] ? deref_stack_reg+0x150/0x150 [ 65.684041][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 65.684066][ T22] ? d_lookup+0xd8/0x170 [ 65.684085][ T22] ? lookup_dcache+0x1e/0x130 [ 65.684105][ T22] ? __lookup_hash+0x29/0x180 [ 65.684127][ T22] ? kern_path_locked+0x17e/0x320 [ 65.684150][ T22] ? handle_remove+0xa2/0x5fe [ 65.684175][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 65.684196][ T22] ? kthread+0x3e5/0x4d0 [ 65.684219][ T22] ? ret_from_fork+0x1f/0x30 [ 65.684262][ T22] ? unwind_next_frame+0x3da/0x1ce0 [ 65.684290][ T22] ? ret_from_fork+0x1f/0x30 [ 65.684318][ T22] kfence_handle_page_fault+0x203/0x630 [ 65.684343][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.684366][ T22] page_fault_oops+0x1c5/0x6b0 [ 65.684389][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 65.684416][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 65.684440][ T22] ? dump_pagetable+0xc0/0xc0 [ 65.684462][ T22] ? pgtable_bad+0x90/0x90 [ 65.684484][ T22] ? search_bpf_extables+0x1d1/0x2f0 [ 65.684505][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 65.684534][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 65.684560][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 65.684584][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 65.684606][ T22] do_kern_addr_fault+0x5b/0x70 [ 65.684626][ T22] exc_page_fault+0x155/0x180 [ 65.684652][ T22] asm_exc_page_fault+0x1e/0x30 [ 65.684677][ T22] RIP: 0010:kvm_fastop_exception+0xf6d/0x105b [ 65.684708][ T22] Code: d3 ed e9 b4 e9 6d f8 49 8d 0e 48 83 e1 f8 4c 8b 21 41 8d 0e 83 e1 07 c1 e1 03 49 d3 ec e9 0a f7 6d f8 49 8d 4d 00 48 83 e1 f8 <4c> 8b 21 41 8d 4d 00 83 e1 07 c1 e1 03 49 d3 ec e9 fa 00 6e f8 bd [ 65.684730][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 65.684750][ T22] RAX: 0000000036736376 RBX: ffff888035e10c00 RCX: ffff88823bd78020 [ 65.684766][ T22] RDX: ffffed1006bc2187 RSI: 0000000000000004 RDI: 0000000000000007 [ 65.684782][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff888035e10c30 [ 65.684797][ T22] R10: ffffed1006bc2186 R11: 0000000000000000 R12: ffff88823bd78020 [ 65.684813][ T22] R13: ffff88823bd78020 R14: ffff888035e10c30 R15: dffffc0000000000 [ 65.684838][ T22] ? __d_lookup+0x372/0x720 [ 65.684874][ T22] d_lookup+0xd8/0x170 [ 65.684899][ T22] lookup_dcache+0x1e/0x130 [ 65.684923][ T22] __lookup_hash+0x29/0x180 [ 65.684948][ T22] kern_path_locked+0x17e/0x320 [ 65.684974][ T22] ? filename_lookup+0x80/0x80 [ 65.685000][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.685021][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.685060][ T22] handle_remove+0xa2/0x5fe [ 65.685085][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.685107][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 65.685137][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.685162][ T22] ? trace_hardirqs_on+0x5b/0x1c0 [ 65.685187][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.685211][ T22] ? __switch_to+0x5cc/0x1060 [ 65.685236][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.685259][ T22] ? lock_acquire+0x442/0x510 [ 65.685282][ T22] ? rcu_read_lock_sched_held+0xd/0x70 [ 65.685305][ T22] ? lock_release+0x522/0x720 [ 65.685328][ T22] ? devtmpfsd+0xaa/0x2a3 [ 65.685349][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.685373][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 65.685398][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 65.685427][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.685451][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 65.685478][ T22] kthread+0x3e5/0x4d0 [ 65.685502][ T22] ? set_kthread_struct+0x130/0x130 [ 65.685530][ T22] ret_from_fork+0x1f/0x30 [ 65.687107][ T22] Kernel Offset: disabled