[ 62.771457][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 62.771482][ T22] Code: d3 ed e9 bf d9 6e f8 49 8d 0e 48 83 e1 f8 4c 8b 21 41 8d 0e 83 e1 07 c1 e1 03 49 d3 ec e9 15 e7 6e 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 05 f1 6e f8 bd [ 62.771501][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 62.771522][ T22] RAX: 0000000033736376 RBX: ffff88806d7ab358 RCX: ffff88823bcd0020 [ 62.771536][ T22] RDX: ffffed100daf5672 RSI: 0000000000000004 RDI: 0000000000000007 [ 62.771549][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff88806d7ab388 [ 62.771562][ T22] R10: ffffed100daf5671 R11: 0000000000000000 R12: ffff88823bcd0020 [ 62.771576][ T22] R13: ffff88823bcd0020 R14: ffff88806d7ab388 R15: dffffc0000000000 [ 62.771590][ T22] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 62.771610][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.771624][ T22] CR2: ffff88823bcd0020 CR3: 0000000070191000 CR4: 00000000001506f0 [ 62.771638][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.771650][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.771663][ T22] Call Trace: [ 62.771673][ T22] d_lookup+0xd8/0x170 [ 62.771695][ T22] lookup_dcache+0x1e/0x130 [ 62.771716][ T22] __lookup_hash+0x29/0x180 [ 62.771739][ T22] kern_path_locked+0x17e/0x320 [ 62.771761][ T22] ? filename_lookup+0x80/0x80 [ 62.771788][ T22] handle_remove+0xa2/0x5fe [ 62.771812][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 62.771839][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 62.771862][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 62.771888][ T22] ? find_held_lock+0x2d/0x110 [ 62.771909][ T22] ? devtmpfsd+0xaa/0x2a3 [ 62.771929][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 62.771950][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 62.771972][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 62.771996][ T22] devtmpfsd+0x1b9/0x2a3 [ 62.772018][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 62.772042][ T22] kthread+0x3e5/0x4d0 [ 62.772062][ T22] ? set_kthread_struct+0x130/0x130 [ 62.772086][ T22] ret_from_fork+0x1f/0x30 [ 62.772113][ T22] ================================================================== [ 62.772121][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 62.772324][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 62.772345][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.772357][ T22] Call Trace: [ 62.772364][ T22] dump_stack_lvl+0xcd/0x134 [ 62.772388][ T22] panic+0x2b0/0x6dd [ 62.772410][ T22] ? __warn_printk+0xf3/0xf3 [ 62.772441][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 62.772476][ T22] kfence_report_error.cold+0x304/0xa56 [ 62.772502][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 62.772528][ T22] ? kfence_print_object+0x2e0/0x2e0 [ 62.772554][ T22] ? add_lock_to_list.constprop.0+0x185/0x370 [ 62.772576][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 62.772597][ T22] ? d_lookup+0xd8/0x170 [ 62.772618][ T22] ? lookup_dcache+0x1e/0x130 [ 62.772640][ T22] ? __lookup_hash+0x29/0x180 [ 62.772662][ T22] ? kern_path_locked+0x17e/0x320 [ 62.772685][ T22] ? handle_remove+0xa2/0x5fe [ 62.772709][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 62.772730][ T22] ? kthread+0x3e5/0x4d0 [ 62.772752][ T22] ? ret_from_fork+0x1f/0x30 [ 62.772815][ T22] ? mark_lock+0xef/0x17b0 [ 62.772848][ T22] kfence_handle_page_fault+0x203/0x630 [ 62.772878][ T22] page_fault_oops+0x1c5/0x6b0 [ 62.772901][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 62.772927][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 62.772950][ T22] ? dump_pagetable+0xc0/0xc0 [ 62.772973][ T22] ? pgtable_bad+0x90/0x90 [ 62.772997][ T22] ? search_bpf_extables+0x1d1/0x2f0 [ 62.773019][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 62.773047][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 62.773074][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 62.773098][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 62.773125][ T22] do_kern_addr_fault+0x5b/0x70 [ 62.773149][ T22] exc_page_fault+0x155/0x180 [ 62.773173][ T22] asm_exc_page_fault+0x1e/0x30 [ 62.773196][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 62.773220][ T22] Code: d3 ed e9 bf d9 6e f8 49 8d 0e 48 83 e1 f8 4c 8b 21 41 8d 0e 83 e1 07 c1 e1 03 49 d3 ec e9 15 e7 6e 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 05 f1 6e f8 bd [ 62.773239][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 62.773257][ T22] RAX: 0000000033736376 RBX: ffff88806d7ab358 RCX: ffff88823bcd0020 [ 62.773272][ T22] RDX: ffffed100daf5672 RSI: 0000000000000004 RDI: 0000000000000007 [ 62.773286][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff88806d7ab388 [ 62.773300][ T22] R10: ffffed100daf5671 R11: 0000000000000000 R12: ffff88823bcd0020 [ 62.773315][ T22] R13: ffff88823bcd0020 R14: ffff88806d7ab388 R15: dffffc0000000000 [ 62.773346][ T22] ? __d_lookup+0x372/0x720 [ 62.773378][ T22] d_lookup+0xd8/0x170 [ 62.773404][ T22] lookup_dcache+0x1e/0x130 [ 62.773428][ T22] __lookup_hash+0x29/0x180 [ 62.773459][ T22] kern_path_locked+0x17e/0x320 [ 62.773485][ T22] ? filename_lookup+0x80/0x80 [ 62.773522][ T22] handle_remove+0xa2/0x5fe [ 62.773550][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 62.773581][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 62.773606][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 62.773639][ T22] ? find_held_lock+0x2d/0x110 [ 62.773665][ T22] ? devtmpfsd+0xaa/0x2a3 [ 62.773687][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 62.773710][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 62.773734][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 62.773766][ T22] devtmpfsd+0x1b9/0x2a3 [ 62.773791][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 62.773819][ T22] kthread+0x3e5/0x4d0 [ 62.773841][ T22] ? set_kthread_struct+0x130/0x130 [ 62.773868][ T22] ret_from_fork+0x1f/0x30 [ 62.774302][ T22] Kernel Offset: disabled