Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ 61.783221][ T22] ================================================================== [ 61.783232][ T22] BUG: KFENCE: use-after-free read in kvm_fastop_exception+0xf6d/0x105b [ 61.783232][ T22] [ 61.783262][ T22] Use-after-free read at 0xffff88823bcb6020 (in kfence-#90): [ 61.783274][ T22] kvm_fastop_exception+0xf6d/0x105b [ 61.783290][ T22] d_lookup+0xd8/0x170 [ 61.783310][ T22] lookup_dcache+0x1e/0x130 [ 61.783328][ T22] __lookup_hash+0x29/0x180 [ 61.783346][ T22] kern_path_locked+0x17e/0x320 [ 61.783366][ T22] handle_remove+0xa2/0x5fe [ 61.783386][ T22] devtmpfsd+0x1b9/0x2a3 [ 61.783403][ T22] kthread+0x3e5/0x4d0 [ 61.783423][ T22] ret_from_fork+0x1f/0x30 [ 61.783441][ T22] [ 61.783444][ T22] kfence-#90 [0xffff88823bcb6000-0xffff88823bcb6fff, size=4096, cache=names_cache] allocated by task 22: [ 61.783477][ T22] getname_kernel+0x4e/0x370 [ 61.783496][ T22] kern_path_locked+0x71/0x320 [ 61.783515][ T22] handle_remove+0xa2/0x5fe [ 61.783534][ T22] devtmpfsd+0x1b9/0x2a3 [ 61.783549][ T22] kthread+0x3e5/0x4d0 [ 61.783566][ T22] ret_from_fork+0x1f/0x30 [ 61.783583][ T22] [ 61.783583][ T22] freed by task 22: [ 61.783613][ T22] putname.part.0+0xe1/0x120 [ 61.783630][ T22] kern_path_locked+0xc2/0x320 [ 61.783650][ T22] handle_remove+0xa2/0x5fe [ 61.783668][ T22] devtmpfsd+0x1b9/0x2a3 [ 61.783683][ T22] kthread+0x3e5/0x4d0 [ 61.783705][ T22] ret_from_fork+0x1f/0x30 [ 61.783721][ T22] [ 61.783725][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 61.783744][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.783754][ T22] RIP: 0010:kvm_fastop_exception+0xf6d/0x105b [ 61.783773][ T22] Code: d3 ed e9 4c f5 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 a2 02 6f 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 92 0c 6f f8 bd [ 61.783790][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 61.783806][ T22] RAX: 0000003561736376 RBX: ffff88806f33aa88 RCX: ffff88823bcb6020 [ 61.783819][ T22] RDX: ffffed100de67558 RSI: 0000000000000005 RDI: 0000000000000007 [ 61.783830][ T22] RBP: 0000000000000005 R08: 0000000000000000 R09: ffff88806f33aab8 [ 61.783841][ T22] R10: ffffed100de67557 R11: 0000000000000000 R12: ffff88823bcb6020 [ 61.783853][ T22] R13: ffff88823bcb6020 R14: ffff88806f33aab8 R15: dffffc0000000000 [ 61.783866][ T22] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 61.783884][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.783896][ T22] CR2: ffff88823bcb6020 CR3: 00000000714ba000 CR4: 00000000001506e0 [ 61.783908][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.783918][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.783930][ T22] Call Trace: [ 61.783939][ T22] d_lookup+0xd8/0x170 [ 61.783959][ T22] lookup_dcache+0x1e/0x130 [ 61.783979][ T22] __lookup_hash+0x29/0x180 [ 61.783999][ T22] kern_path_locked+0x17e/0x320 [ 61.784021][ T22] ? filename_lookup+0x80/0x80 [ 61.784046][ T22] handle_remove+0xa2/0x5fe [ 61.784068][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 61.784092][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 61.784113][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 61.784136][ T22] ? find_held_lock+0x2d/0x110 [ 61.784154][ T22] ? devtmpfsd+0xaa/0x2a3 [ 61.784172][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 61.784190][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 61.784209][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 61.784232][ T22] devtmpfsd+0x1b9/0x2a3 [ 61.784250][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 61.784271][ T22] kthread+0x3e5/0x4d0 [ 61.784290][ T22] ? set_kthread_struct+0x130/0x130 [ 61.784312][ T22] ret_from_fork+0x1f/0x30 [ 61.784336][ T22] ================================================================== [ 61.784343][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 61.784561][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 61.784580][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.784590][ T22] Call Trace: [ 61.784596][ T22] dump_stack_lvl+0xcd/0x134 [ 61.784617][ T22] panic+0x2b0/0x6dd [ 61.784636][ T22] ? __warn_printk+0xf3/0xf3 [ 61.784663][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 61.784694][ T22] kfence_report_error.cold+0x304/0xa56 [ 61.784716][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 61.784739][ T22] ? kfence_print_object+0x350/0x350 [ 61.784762][ T22] ? add_lock_to_list.constprop.0+0x185/0x370 [ 61.784782][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 61.784800][ T22] ? d_lookup+0xd8/0x170 [ 61.784819][ T22] ? lookup_dcache+0x1e/0x130 [ 61.784839][ T22] ? __lookup_hash+0x29/0x180 [ 61.784859][ T22] ? kern_path_locked+0x17e/0x320 [ 61.784881][ T22] ? handle_remove+0xa2/0x5fe [ 61.784902][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 61.784921][ T22] ? kthread+0x3e5/0x4d0 [ 61.784955][ T22] ? ret_from_fork+0x1f/0x30 [ 61.785015][ T22] ? mark_lock+0xef/0x17b0 [ 61.785045][ T22] kfence_handle_page_fault+0x203/0x630 [ 61.785073][ T22] page_fault_oops+0x1c5/0x6b0 [ 61.785094][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 61.785118][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 61.785138][ T22] ? dump_pagetable+0xc0/0xc0 [ 61.785158][ T22] ? pgtable_bad+0x90/0x90 [ 61.785180][ T22] ? search_bpf_extables+0x1d1/0x2f0 [ 61.785199][ T22] ? kvm_fastop_exception+0xf6d/0x105b [ 61.785224][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 61.785248][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 61.785269][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 61.785293][ T22] do_kern_addr_fault+0x5b/0x70 [ 61.785315][ T22] exc_page_fault+0x155/0x180 [ 61.785336][ T22] asm_exc_page_fault+0x1e/0x30 [ 61.785357][ T22] RIP: 0010:kvm_fastop_exception+0xf6d/0x105b [ 61.785376][ T22] Code: d3 ed e9 4c f5 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 a2 02 6f 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 92 0c 6f f8 bd [ 61.785394][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 61.785410][ T22] RAX: 0000003561736376 RBX: ffff88806f33aa88 RCX: ffff88823bcb6020 [ 61.785423][ T22] RDX: ffffed100de67558 RSI: 0000000000000005 RDI: 0000000000000007 [ 61.785436][ T22] RBP: 0000000000000005 R08: 0000000000000000 R09: ffff88806f33aab8 [ 61.785448][ T22] R10: ffffed100de67557 R11: 0000000000000000 R12: ffff88823bcb6020 [ 61.785460][ T22] R13: ffff88823bcb6020 R14: ffff88806f33aab8 R15: dffffc0000000000 [ 61.785489][ T22] ? __d_lookup+0x372/0x720 [ 61.785520][ T22] d_lookup+0xd8/0x170 [ 61.785543][ T22] lookup_dcache+0x1e/0x130 [ 61.785566][ T22] __lookup_hash+0x29/0x180 [ 61.785590][ T22] kern_path_locked+0x17e/0x320 [ 61.785614][ T22] ? filename_lookup+0x80/0x80 [ 61.785649][ T22] handle_remove+0xa2/0x5fe [ 61.785675][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 61.785707][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 61.785729][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 61.785759][ T22] ? find_held_lock+0x2d/0x110 [ 61.785783][ T22] ? devtmpfsd+0xaa/0x2a3 [ 61.785802][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 61.785822][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 61.785844][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 61.785874][ T22] devtmpfsd+0x1b9/0x2a3 [ 61.785896][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 61.785920][ T22] kthread+0x3e5/0x4d0 [ 61.785940][ T22] ? set_kthread_struct+0x130/0x130 [ 61.785966][ T22] ret_from_fork+0x1f/0x30 [ 61.786317][ T22] Kernel Offset: disabled [ 62.516222][ T22] Rebooting in 86400 seconds..