[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. [ 75.255607][ T22] ================================================================== [ 75.255619][ T22] BUG: KFENCE: use-after-free read in kvm_fastop_exception+0xf6a/0x1058 [ 75.255619][ T22] [ 75.255666][ T22] Use-after-free read at 0xffff88823bdbe020 (in kfence-#222): [ 75.255681][ T22] kvm_fastop_exception+0xf6a/0x1058 [ 75.255703][ T22] d_lookup+0xd8/0x170 [ 75.255723][ T22] lookup_dcache+0x1e/0x130 [ 75.255742][ T22] __lookup_hash+0x29/0x180 [ 75.255760][ T22] kern_path_locked+0x17e/0x320 [ 75.255780][ T22] handle_remove+0xa2/0x5fe [ 75.255805][ T22] devtmpfsd+0x1b9/0x2a3 [ 75.255827][ T22] kthread+0x3e5/0x4d0 [ 75.255848][ T22] ret_from_fork+0x1f/0x30 [ 75.255870][ T22] [ 75.255874][ T22] kfence-#222: 0xffff88823bdbe000-0xffff88823bdbefff, size=4096, cache=names_cache [ 75.255874][ T22] [ 75.255895][ T22] allocated by task 22 on cpu 0 at 75.255478s: [ 75.255925][ T22] getname_kernel+0x4e/0x370 [ 75.255945][ T22] kern_path_locked+0x71/0x320 [ 75.255965][ T22] handle_remove+0xa2/0x5fe [ 75.255982][ T22] devtmpfsd+0x1b9/0x2a3 [ 75.256003][ T22] kthread+0x3e5/0x4d0 [ 75.256022][ T22] ret_from_fork+0x1f/0x30 [ 75.256042][ T22] [ 75.256045][ T22] freed by task 22 on cpu 0 at 75.255496s: [ 75.256077][ T22] putname.part.0+0xe1/0x120 [ 75.256095][ T22] kern_path_locked+0xc2/0x320 [ 75.256115][ T22] handle_remove+0xa2/0x5fe [ 75.256132][ T22] devtmpfsd+0x1b9/0x2a3 [ 75.256152][ T22] kthread+0x3e5/0x4d0 [ 75.256172][ T22] ret_from_fork+0x1f/0x30 [ 75.256192][ T22] [ 75.256197][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 75.256219][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.256232][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 75.256258][ T22] Code: d3 ed e9 f7 8c 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 4d 9a 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 3d a4 6d f8 bd [ 75.256279][ T22] RSP: 0018:ffffc90000fe7ae8 EFLAGS: 00010282 [ 75.256298][ T22] RAX: 0000003275736376 RBX: ffff888067d58238 RCX: ffff88823bdbe020 [ 75.256313][ T22] RDX: ffffed100cfab04e RSI: 0000000000000005 RDI: 0000000000000007 [ 75.256328][ T22] RBP: 0000000000000005 R08: 0000000000000000 R09: ffff888067d58268 [ 75.256342][ T22] R10: ffffed100cfab04d R11: 0000000000000000 R12: ffff88823bdbe020 [ 75.256357][ T22] R13: ffff88823bdbe020 R14: ffff888067d58268 R15: dffffc0000000000 [ 75.256373][ T22] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 75.256394][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.256410][ T22] CR2: ffff88823bdbe020 CR3: 000000000b68e000 CR4: 00000000001506f0 [ 75.256424][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.256437][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.256450][ T22] Call Trace: [ 75.256458][ T22] d_lookup+0xd8/0x170 [ 75.256478][ T22] lookup_dcache+0x1e/0x130 [ 75.256499][ T22] __lookup_hash+0x29/0x180 [ 75.256518][ T22] kern_path_locked+0x17e/0x320 [ 75.256562][ T22] ? filename_lookup+0x80/0x80 [ 75.256585][ T22] handle_remove+0xa2/0x5fe [ 75.256603][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 75.256626][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 75.256652][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 75.256677][ T22] ? find_held_lock+0x2d/0x110 [ 75.256697][ T22] ? devtmpfsd+0xaa/0x2a3 [ 75.256721][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 75.256743][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 75.256767][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 75.256790][ T22] devtmpfsd+0x1b9/0x2a3 [ 75.256822][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 75.256848][ T22] kthread+0x3e5/0x4d0 [ 75.256871][ T22] ? set_kthread_struct+0x130/0x130 [ 75.256896][ T22] ret_from_fork+0x1f/0x30 [ 75.256921][ T22] ================================================================== [ 75.256930][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 75.257154][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 75.257178][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.257192][ T22] Call Trace: [ 75.257199][ T22] dump_stack_lvl+0xcd/0x134 [ 75.257225][ T22] panic+0x2b0/0x6dd [ 75.257246][ T22] ? __warn_printk+0xf3/0xf3 [ 75.257269][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 75.257293][ T22] kfence_report_error.cold+0x304/0xa56 [ 75.257316][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 75.257342][ T22] ? kfence_print_object+0x2e0/0x2e0 [ 75.257366][ T22] ? add_lock_to_list.constprop.0+0x185/0x370 [ 75.257391][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 75.257414][ T22] ? d_lookup+0xd8/0x170 [ 75.257435][ T22] ? lookup_dcache+0x1e/0x130 [ 75.257456][ T22] ? __lookup_hash+0x29/0x180 [ 75.257478][ T22] ? kern_path_locked+0x17e/0x320 [ 75.257503][ T22] ? handle_remove+0xa2/0x5fe [ 75.257524][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 75.257549][ T22] ? kthread+0x3e5/0x4d0 [ 75.257573][ T22] ? ret_from_fork+0x1f/0x30 [ 75.257601][ T22] ? mark_lock+0xef/0x17b0 [ 75.257623][ T22] ? mark_lock+0xef/0x17b0 [ 75.257645][ T22] kfence_handle_page_fault+0x203/0x630 [ 75.257670][ T22] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 75.257697][ T22] page_fault_oops+0x1c5/0x6b0 [ 75.257720][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 75.257746][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 75.257770][ T22] ? dump_pagetable+0xc0/0xc0 [ 75.257793][ T22] ? pgtable_bad+0x90/0x90 [ 75.257822][ T22] ? search_module_extables+0xaf/0x100 [ 75.257849][ T22] ? search_exception_tables+0x33/0x50 [ 75.257881][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 75.257906][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 75.257930][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 75.257954][ T22] do_kern_addr_fault+0x5b/0x70 [ 75.257978][ T22] exc_page_fault+0x155/0x180 [ 75.258002][ T22] asm_exc_page_fault+0x1e/0x30 [ 75.258030][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 75.258057][ T22] Code: d3 ed e9 f7 8c 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 4d 9a 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 3d a4 6d f8 bd [ 75.258079][ T22] RSP: 0018:ffffc90000fe7ae8 EFLAGS: 00010282 [ 75.258100][ T22] RAX: 0000003275736376 RBX: ffff888067d58238 RCX: ffff88823bdbe020 [ 75.258116][ T22] RDX: ffffed100cfab04e RSI: 0000000000000005 RDI: 0000000000000007 [ 75.258132][ T22] RBP: 0000000000000005 R08: 0000000000000000 R09: ffff888067d58268 [ 75.258148][ T22] R10: ffffed100cfab04d R11: 0000000000000000 R12: ffff88823bdbe020 [ 75.258165][ T22] R13: ffff88823bdbe020 R14: ffff888067d58268 R15: dffffc0000000000 [ 75.258184][ T22] ? __d_lookup+0x372/0x720 [ 75.258206][ T22] d_lookup+0xd8/0x170 [ 75.258228][ T22] lookup_dcache+0x1e/0x130 [ 75.258251][ T22] __lookup_hash+0x29/0x180 [ 75.258272][ T22] kern_path_locked+0x17e/0x320 [ 75.258297][ T22] ? filename_lookup+0x80/0x80 [ 75.258321][ T22] handle_remove+0xa2/0x5fe [ 75.258342][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 75.258365][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 75.258390][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 75.258418][ T22] ? find_held_lock+0x2d/0x110 [ 75.258439][ T22] ? devtmpfsd+0xaa/0x2a3 [ 75.258463][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 75.258485][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 75.258510][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 75.258535][ T22] devtmpfsd+0x1b9/0x2a3 [ 75.258560][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 75.258588][ T22] kthread+0x3e5/0x4d0 [ 75.258612][ T22] ? set_kthread_struct+0x130/0x130 [ 75.258638][ T22] ret_from_fork+0x1f/0x30 [ 75.258823][ T22] Kernel Offset: disabled [ 76.009280][ T22] Rebooting in 86400 seconds..