Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started System Logging Service. [ OK ] Found device /dev/ttyS0. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ 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 Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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. [ 77.432793][ T22] ================================================================== [ 77.432805][ T22] BUG: KFENCE: use-after-free read in kvm_fastop_exception+0xf6a/0x1058 [ 77.432805][ T22] [ 77.432856][ T22] Use-after-free read at 0xffff88823bc4e020 (in kfence-#38): [ 77.432871][ T22] kvm_fastop_exception+0xf6a/0x1058 [ 77.432892][ T22] d_lookup+0xd8/0x170 [ 77.432912][ T22] lookup_dcache+0x1e/0x130 [ 77.432932][ T22] __lookup_hash+0x29/0x180 [ 77.432952][ T22] kern_path_locked+0x17e/0x320 [ 77.432974][ T22] handle_remove+0xa2/0x5fe [ 77.432992][ T22] devtmpfsd+0x1b9/0x2a3 [ 77.433015][ T22] kthread+0x3e5/0x4d0 [ 77.433036][ T22] ret_from_fork+0x1f/0x30 [ 77.433059][ T22] [ 77.433064][ T22] kfence-#38: 0xffff88823bc4e000-0xffff88823bc4efff, size=4096, cache=names_cache [ 77.433064][ T22] [ 77.433085][ T22] allocated by task 22 on cpu 0 at 77.432631s: [ 77.433116][ T22] getname_kernel+0x4e/0x370 [ 77.433136][ T22] kern_path_locked+0x71/0x320 [ 77.433156][ T22] handle_remove+0xa2/0x5fe [ 77.433174][ T22] devtmpfsd+0x1b9/0x2a3 [ 77.433194][ T22] kthread+0x3e5/0x4d0 [ 77.433213][ T22] ret_from_fork+0x1f/0x30 [ 77.433233][ T22] [ 77.433237][ T22] freed by task 22 on cpu 0 at 77.432664s: [ 77.433269][ T22] putname.part.0+0xe1/0x120 [ 77.433287][ T22] kern_path_locked+0xc2/0x320 [ 77.433307][ T22] handle_remove+0xa2/0x5fe [ 77.433325][ T22] devtmpfsd+0x1b9/0x2a3 [ 77.433346][ T22] kthread+0x3e5/0x4d0 [ 77.433366][ T22] ret_from_fork+0x1f/0x30 [ 77.433386][ T22] [ 77.433391][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 77.433414][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.433427][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 77.433454][ T22] Code: d3 ed e9 67 8d 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 bd 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 ad a4 6d f8 bd [ 77.433476][ T22] RSP: 0018:ffffc90000fe7ae8 EFLAGS: 00010282 [ 77.433495][ T22] RAX: 0000000033736376 RBX: ffff888068182a10 RCX: ffff88823bc4e020 [ 77.433511][ T22] RDX: ffffed100d030549 RSI: 0000000000000004 RDI: 0000000000000007 [ 77.433525][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff888068182a40 [ 77.433540][ T22] R10: ffffed100d030548 R11: 0000000000000000 R12: ffff88823bc4e020 [ 77.433555][ T22] R13: ffff88823bc4e020 R14: ffff888068182a40 R15: dffffc0000000000 [ 77.433571][ T22] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.433594][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.433610][ T22] CR2: ffff88823bc4e020 CR3: 000000000b68e000 CR4: 00000000001506f0 [ 77.433626][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.433639][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.433654][ T22] Call Trace: [ 77.433661][ T22] d_lookup+0xd8/0x170 [ 77.433682][ T22] lookup_dcache+0x1e/0x130 [ 77.433709][ T22] __lookup_hash+0x29/0x180 [ 77.433730][ T22] kern_path_locked+0x17e/0x320 [ 77.433754][ T22] ? filename_lookup+0x80/0x80 [ 77.433777][ T22] handle_remove+0xa2/0x5fe [ 77.433798][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 77.433821][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 77.433846][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 77.433871][ T22] ? find_held_lock+0x2d/0x110 [ 77.433891][ T22] ? devtmpfsd+0xaa/0x2a3 [ 77.433914][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 77.433935][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 77.433958][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 77.433982][ T22] devtmpfsd+0x1b9/0x2a3 [ 77.434006][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 77.434032][ T22] kthread+0x3e5/0x4d0 [ 77.434054][ T22] ? set_kthread_struct+0x130/0x130 [ 77.434079][ T22] ret_from_fork+0x1f/0x30 [ 77.434103][ T22] ================================================================== [ 77.434112][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 77.434342][ T22] CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 77.434368][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.434381][ T22] Call Trace: [ 77.434389][ T22] dump_stack_lvl+0xcd/0x134 [ 77.434414][ T22] panic+0x2b0/0x6dd [ 77.434437][ T22] ? __warn_printk+0xf3/0xf3 [ 77.434460][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 77.434485][ T22] kfence_report_error.cold+0x304/0xa56 [ 77.434509][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 77.434534][ T22] ? kfence_print_object+0x2e0/0x2e0 [ 77.434558][ T22] ? add_lock_to_list.constprop.0+0x185/0x370 [ 77.434583][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 77.434607][ T22] ? d_lookup+0xd8/0x170 [ 77.434629][ T22] ? lookup_dcache+0x1e/0x130 [ 77.434651][ T22] ? __lookup_hash+0x29/0x180 [ 77.434673][ T22] ? kern_path_locked+0x17e/0x320 [ 77.434703][ T22] ? handle_remove+0xa2/0x5fe [ 77.434725][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 77.434749][ T22] ? kthread+0x3e5/0x4d0 [ 77.434772][ T22] ? ret_from_fork+0x1f/0x30 [ 77.434799][ T22] ? mark_lock+0xef/0x17b0 [ 77.434821][ T22] ? mark_lock+0xef/0x17b0 [ 77.434843][ T22] kfence_handle_page_fault+0x203/0x630 [ 77.434868][ T22] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 77.434895][ T22] page_fault_oops+0x1c5/0x6b0 [ 77.434919][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 77.434946][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 77.434971][ T22] ? dump_pagetable+0xc0/0xc0 [ 77.434993][ T22] ? pgtable_bad+0x90/0x90 [ 77.435014][ T22] ? search_module_extables+0xaf/0x100 [ 77.435041][ T22] ? search_exception_tables+0x33/0x50 [ 77.435067][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 77.435092][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 77.435116][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 77.435141][ T22] do_kern_addr_fault+0x5b/0x70 [ 77.435164][ T22] exc_page_fault+0x155/0x180 [ 77.435189][ T22] asm_exc_page_fault+0x1e/0x30 [ 77.435216][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 77.435243][ T22] Code: d3 ed e9 67 8d 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 bd 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 ad a4 6d f8 bd [ 77.435266][ T22] RSP: 0018:ffffc90000fe7ae8 EFLAGS: 00010282 [ 77.435287][ T22] RAX: 0000000033736376 RBX: ffff888068182a10 RCX: ffff88823bc4e020 [ 77.435305][ T22] RDX: ffffed100d030549 RSI: 0000000000000004 RDI: 0000000000000007 [ 77.435321][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff888068182a40 [ 77.435336][ T22] R10: ffffed100d030548 R11: 0000000000000000 R12: ffff88823bc4e020 [ 77.435353][ T22] R13: ffff88823bc4e020 R14: ffff888068182a40 R15: dffffc0000000000 [ 77.435372][ T22] ? __d_lookup+0x372/0x720 [ 77.435395][ T22] d_lookup+0xd8/0x170 [ 77.435417][ T22] lookup_dcache+0x1e/0x130 [ 77.435439][ T22] __lookup_hash+0x29/0x180 [ 77.435460][ T22] kern_path_locked+0x17e/0x320 [ 77.435483][ T22] ? filename_lookup+0x80/0x80 [ 77.435506][ T22] handle_remove+0xa2/0x5fe [ 77.435526][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 77.435550][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 77.435575][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 77.435599][ T22] ? find_held_lock+0x2d/0x110 [ 77.435620][ T22] ? devtmpfsd+0xaa/0x2a3 [ 77.435646][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 77.435668][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 77.435699][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 77.435726][ T22] devtmpfsd+0x1b9/0x2a3 [ 77.435751][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 77.435780][ T22] kthread+0x3e5/0x4d0 [ 77.435804][ T22] ? set_kthread_struct+0x130/0x130 [ 77.435830][ T22] ret_from_fork+0x1f/0x30 [ 77.436205][ T22] Kernel Offset: disabled