Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ 65.001567][ T22] ================================================================== [ 65.001578][ T22] BUG: KFENCE: use-after-free read in kvm_fastop_exception+0xf6a/0x1058 [ 65.001578][ T22] [ 65.001619][ T22] Use-after-free read at 0xffff88823bd30020 (in kfence-#151): [ 65.001638][ T22] kvm_fastop_exception+0xf6a/0x1058 [ 65.001656][ T22] d_lookup+0xd8/0x170 [ 65.001675][ T22] lookup_dcache+0x1e/0x130 [ 65.001694][ T22] __lookup_hash+0x29/0x180 [ 65.001713][ T22] kern_path_locked+0x17e/0x320 [ 65.001734][ T22] handle_remove+0xa2/0x5fe [ 65.001755][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.001773][ T22] kthread+0x3e5/0x4d0 [ 65.001793][ T22] ret_from_fork+0x1f/0x30 [ 65.001812][ T22] [ 65.001817][ T22] kfence-#151 [0xffff88823bd30000-0xffff88823bd30fff, size=4096, cache=names_cache] allocated by task 22: [ 65.001852][ T22] getname_kernel+0x4e/0x370 [ 65.001871][ T22] kern_path_locked+0x71/0x320 [ 65.001891][ T22] handle_remove+0xa2/0x5fe [ 65.001911][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.001927][ T22] kthread+0x3e5/0x4d0 [ 65.001945][ T22] ret_from_fork+0x1f/0x30 [ 65.001962][ T22] [ 65.001962][ T22] freed by task 22: [ 65.001985][ T22] putname.part.0+0xe1/0x120 [ 65.002004][ T22] kern_path_locked+0xc2/0x320 [ 65.002023][ T22] handle_remove+0xa2/0x5fe [ 65.002042][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.002059][ T22] kthread+0x3e5/0x4d0 [ 65.002076][ T22] ret_from_fork+0x1f/0x30 [ 65.002093][ T22] [ 65.002098][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 65.002117][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.002127][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 65.002148][ T22] Code: d3 ed e9 df d2 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 35 e0 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 25 ea 6e f8 bd [ 65.002166][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 65.002182][ T22] RAX: 0000000033736376 RBX: ffff88806dc2cef0 RCX: ffff88823bd30020 [ 65.002195][ T22] RDX: ffffed100db859e5 RSI: 0000000000000004 RDI: 0000000000000007 [ 65.002207][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff88806dc2cf20 [ 65.002218][ T22] R10: ffffed100db859e4 R11: 0000000000000000 R12: ffff88823bd30020 [ 65.002230][ T22] R13: ffff88823bd30020 R14: ffff88806dc2cf20 R15: dffffc0000000000 [ 65.002243][ T22] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 65.002262][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.002275][ T22] CR2: ffff88823bd30020 CR3: 0000000072e42000 CR4: 00000000001506e0 [ 65.002287][ T22] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.002298][ T22] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.002310][ T22] Call Trace: [ 65.002320][ T22] d_lookup+0xd8/0x170 [ 65.002341][ T22] lookup_dcache+0x1e/0x130 [ 65.002362][ T22] __lookup_hash+0x29/0x180 [ 65.002383][ T22] kern_path_locked+0x17e/0x320 [ 65.002405][ T22] ? filename_lookup+0x80/0x80 [ 65.002432][ T22] handle_remove+0xa2/0x5fe [ 65.002455][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 65.002479][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.002501][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.002524][ T22] ? find_held_lock+0x2d/0x110 [ 65.002543][ T22] ? devtmpfsd+0xaa/0x2a3 [ 65.002562][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.002581][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 65.002602][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 65.002625][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.002649][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 65.002671][ T22] kthread+0x3e5/0x4d0 [ 65.002691][ T22] ? set_kthread_struct+0x130/0x130 [ 65.002714][ T22] ret_from_fork+0x1f/0x30 [ 65.002739][ T22] ================================================================== [ 65.002746][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 65.002906][ T22] CPU: 1 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller #0 [ 65.002925][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.002936][ T22] Call Trace: [ 65.002943][ T22] dump_stack_lvl+0xcd/0x134 [ 65.002965][ T22] panic+0x2b0/0x6dd [ 65.002984][ T22] ? __warn_printk+0xf3/0xf3 [ 65.003012][ T22] ? kfence_report_error.cold+0x2f3/0xa56 [ 65.003039][ T22] kfence_report_error.cold+0x304/0xa56 [ 65.003062][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 65.003086][ T22] ? kfence_print_object+0x350/0x350 [ 65.003110][ T22] ? add_lock_to_list.constprop.0+0x185/0x370 [ 65.003131][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 65.003150][ T22] ? d_lookup+0xd8/0x170 [ 65.003170][ T22] ? lookup_dcache+0x1e/0x130 [ 65.003191][ T22] ? __lookup_hash+0x29/0x180 [ 65.003211][ T22] ? kern_path_locked+0x17e/0x320 [ 65.003234][ T22] ? handle_remove+0xa2/0x5fe [ 65.003257][ T22] ? devtmpfsd+0x1b9/0x2a3 [ 65.003277][ T22] ? kthread+0x3e5/0x4d0 [ 65.003297][ T22] ? ret_from_fork+0x1f/0x30 [ 65.003360][ T22] ? mark_lock+0xef/0x17b0 [ 65.003391][ T22] kfence_handle_page_fault+0x203/0x630 [ 65.003420][ T22] page_fault_oops+0x1c5/0x6b0 [ 65.003441][ T22] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 65.003466][ T22] ? is_prefetch.constprop.0+0xb7/0x530 [ 65.003487][ T22] ? dump_pagetable+0xc0/0xc0 [ 65.003507][ T22] ? pgtable_bad+0x90/0x90 [ 65.003530][ T22] ? search_bpf_extables+0x1d1/0x2f0 [ 65.003550][ T22] ? kvm_fastop_exception+0xf6a/0x1058 [ 65.003592][ T22] kernelmode_fixup_or_oops+0x219/0x280 [ 65.003617][ T22] __bad_area_nosemaphore+0x36d/0x400 [ 65.003648][ T22] ? spurious_kernel_fault+0x38d/0x5b0 [ 65.003673][ T22] do_kern_addr_fault+0x5b/0x70 [ 65.003696][ T22] exc_page_fault+0x155/0x180 [ 65.003718][ T22] asm_exc_page_fault+0x1e/0x30 [ 65.003740][ T22] RIP: 0010:kvm_fastop_exception+0xf6a/0x1058 [ 65.003761][ T22] Code: d3 ed e9 df d2 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 35 e0 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 25 ea 6e f8 bd [ 65.003779][ T22] RSP: 0018:ffffc90000dcfae8 EFLAGS: 00010282 [ 65.003796][ T22] RAX: 0000000033736376 RBX: ffff88806dc2cef0 RCX: ffff88823bd30020 [ 65.003810][ T22] RDX: ffffed100db859e5 RSI: 0000000000000004 RDI: 0000000000000007 [ 65.003823][ T22] RBP: 0000000000000004 R08: 0000000000000000 R09: ffff88806dc2cf20 [ 65.003835][ T22] R10: ffffed100db859e4 R11: 0000000000000000 R12: ffff88823bd30020 [ 65.003848][ T22] R13: ffff88823bd30020 R14: ffff88806dc2cf20 R15: dffffc0000000000 [ 65.003878][ T22] ? __d_lookup+0x372/0x720 [ 65.003910][ T22] d_lookup+0xd8/0x170 [ 65.003935][ T22] lookup_dcache+0x1e/0x130 [ 65.003958][ T22] __lookup_hash+0x29/0x180 [ 65.003983][ T22] kern_path_locked+0x17e/0x320 [ 65.004008][ T22] ? filename_lookup+0x80/0x80 [ 65.004043][ T22] handle_remove+0xa2/0x5fe [ 65.004070][ T22] ? cacheinfo_cpu_online.cold+0x3e/0x3e [ 65.004099][ T22] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.004122][ T22] ? finish_task_switch.isra.0+0x232/0xa50 [ 65.004155][ T22] ? find_held_lock+0x2d/0x110 [ 65.004180][ T22] ? devtmpfsd+0xaa/0x2a3 [ 65.004202][ T22] ? lock_downgrade+0x6e0/0x6e0 [ 65.004223][ T22] ? do_raw_spin_lock+0x120/0x2b0 [ 65.004247][ T22] ? rwlock_bug.part.0+0x90/0x90 [ 65.004279][ T22] devtmpfsd+0x1b9/0x2a3 [ 65.004303][ T22] ? dmar_validate_one_drhd+0x24d/0x24d [ 65.004329][ T22] kthread+0x3e5/0x4d0 [ 65.004351][ T22] ? set_kthread_struct+0x130/0x130 [ 65.004377][ T22] ret_from_fork+0x1f/0x30 [ 65.004759][ T22] Kernel Offset: disabled