[ 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. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 64.220082][ T4864] BUG: unable to handle page fault for address: 00003680ffffea08 [ 64.227824][ T4864] #PF: supervisor read access in kernel mode [ 64.233803][ T4864] #PF: error_code(0x0000) - not-present page [ 64.239760][ T4864] PGD 0 P4D 0 [ 64.243115][ T4864] Oops: 0000 [#1] PREEMPT SMP KASAN [ 64.248290][ T4864] CPU: 0 PID: 4864 Comm: systemd-udevd Not tainted 5.12.0-rc8-next-20210423-syzkaller #0 [ 64.258120][ T4864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.268159][ T4864] RIP: 0010:stack_depot_save+0x12b/0x4e0 [ 64.273796][ T4864] Code: 05 7a 64 b8 0c 89 da 81 e2 ff ff 0f 00 4c 8d 3c d0 4d 8b 37 4d 85 f6 75 11 e9 94 00 00 00 4d 8b 36 4d 85 f6 0f 84 88 00 00 00 <41> 39 5e 08 75 ee 45 3b 66 0c 75 e8 31 c0 49 8b 4c c6 18 48 39 4c [ 64.293525][ T4864] RSP: 0018:ffffc9000153f548 EFLAGS: 00010206 [ 64.299576][ T4864] RAX: ffff88823b000000 RBX: 0000000062405857 RCX: 0000000000000003 [ 64.307539][ T4864] RDX: 0000000000005857 RSI: 0000000000000cc0 RDI: 000000001d26f840 [ 64.315491][ T4864] RBP: ffffc9000153f5b8 R08: 00000000bd03d427 R09: 0000000000000000 [ 64.323453][ T4864] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000000f [ 64.331426][ T4864] R13: 000000000000000f R14: 00003680ffffea00 R15: ffff88823b02c2b8 [ 64.339392][ T4864] FS: 00007f867a3c88c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 64.348430][ T4864] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.355001][ T4864] CR2: 00003680ffffea08 CR3: 00000000151c8000 CR4: 00000000001506f0 [ 64.362956][ T4864] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.370909][ T4864] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.378863][ T4864] Call Trace: [ 64.382135][ T4864] kasan_save_stack+0x32/0x40 [ 64.386801][ T4864] ? kasan_save_stack+0x1b/0x40 [ 64.391634][ T4864] ? __kasan_slab_alloc+0x84/0xa0 [ 64.396638][ T4864] ? kmem_cache_alloc+0x152/0x3a0 [ 64.401646][ T4864] ? shmem_alloc_inode+0x18/0x40 [ 64.406566][ T4864] ? alloc_inode+0x61/0x230 [ 64.411065][ T4864] ? new_inode+0x27/0x2f0 [ 64.415639][ T4864] ? shmem_get_inode+0x195/0xc20 [ 64.420559][ T4864] ? shmem_mknod+0x5a/0x1f0 [ 64.425043][ T4864] ? lookup_open.isra.0+0xfe4/0x13d0 [ 64.430310][ T4864] ? path_openat+0x9af/0x27d0 [ 64.434983][ T4864] ? do_filp_open+0x190/0x3d0 [ 64.439659][ T4864] ? do_sys_openat2+0x16d/0x420 [ 64.444488][ T4864] ? __x64_sys_open+0x119/0x1c0 [ 64.449318][ T4864] ? do_syscall_64+0x3a/0xb0 [ 64.453903][ T4864] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 64.459956][ T4864] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.465928][ T4864] ? find_held_lock+0x2d/0x110 [ 64.470673][ T4864] ? fs_reclaim_release+0x9c/0xf0 [ 64.475680][ T4864] ? kasan_unpoison+0x3c/0x60 [ 64.480338][ T4864] __kasan_slab_alloc+0x84/0xa0 [ 64.485169][ T4864] kmem_cache_alloc+0x152/0x3a0 [ 64.490001][ T4864] ? shmem_destroy_inode+0x70/0x70 [ 64.495094][ T4864] shmem_alloc_inode+0x18/0x40 [ 64.499839][ T4864] ? shmem_destroy_inode+0x70/0x70 [ 64.504938][ T4864] alloc_inode+0x61/0x230 [ 64.509262][ T4864] new_inode+0x27/0x2f0 [ 64.513539][ T4864] shmem_get_inode+0x195/0xc20 [ 64.518296][ T4864] shmem_mknod+0x5a/0x1f0 [ 64.522625][ T4864] ? shmem_mkdir+0x60/0x60 [ 64.527034][ T4864] lookup_open.isra.0+0xfe4/0x13d0 [ 64.532135][ T4864] ? lookup_fast+0x6d0/0x6d0 [ 64.536726][ T4864] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 64.542995][ T4864] path_openat+0x9af/0x27d0 [ 64.547521][ T4864] ? path_lookupat+0x850/0x850 [ 64.552282][ T4864] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.558259][ T4864] do_filp_open+0x190/0x3d0 [ 64.562751][ T4864] ? may_open_dev+0xf0/0xf0 [ 64.567240][ T4864] ? rwlock_bug.part.0+0x90/0x90 [ 64.572190][ T4864] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 64.578420][ T4864] ? _find_next_bit+0x1e3/0x260 [ 64.583256][ T4864] ? _raw_spin_unlock+0x24/0x40 [ 64.588086][ T4864] ? alloc_fd+0x2f0/0x670 [ 64.592397][ T4864] do_sys_openat2+0x16d/0x420 [ 64.597056][ T4864] ? build_open_flags+0x6f0/0x6f0 [ 64.602060][ T4864] ? __context_tracking_exit+0xb8/0xe0 [ 64.607519][ T4864] __x64_sys_open+0x119/0x1c0 [ 64.612176][ T4864] ? do_sys_open+0x140/0x140 [ 64.616746][ T4864] ? __secure_computing+0x104/0x360 [ 64.621925][ T4864] do_syscall_64+0x3a/0xb0 [ 64.626325][ T4864] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 64.632247][ T4864] RIP: 0033:0x7f867950e840 [ 64.636656][ T4864] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 64.656254][ T4864] RSP: 002b:00007fff91c47128 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 64.664652][ T4864] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f867950e840 [ 64.672724][ T4864] RDX: 00000000000001a4 RSI: 0000000000080141 RDI: 000056082e2cb369 [ 64.680684][ T4864] RBP: 000056082e2cb369 R08: c0c8fefc00000000 R09: 0000000000000007 [ 64.688639][ T4864] R10: cb98b0c023a55a4d R11: 0000000000000246 R12: 000056082f971010 [ 64.696599][ T4864] R13: 00000000fffffffe R14: 0000000000000000 R15: 0000000000000001 [ 64.704559][ T4864] Modules linked in: [ 64.708431][ T4864] CR2: 00003680ffffea08 [ 64.712992][ T4864] ---[ end trace ca0d554000193035 ]--- [ 64.718571][ T4864] RIP: 0010:stack_depot_save+0x12b/0x4e0 [ 64.724286][ T4864] Code: 05 7a 64 b8 0c 89 da 81 e2 ff ff 0f 00 4c 8d 3c d0 4d 8b 37 4d 85 f6 75 11 e9 94 00 00 00 4d 8b 36 4d 85 f6 0f 84 88 00 00 00 <41> 39 5e 08 75 ee 45 3b 66 0c 75 e8 31 c0 49 8b 4c c6 18 48 39 4c [ 64.743978][ T4864] RSP: 0018:ffffc9000153f548 EFLAGS: 00010206 [ 64.750072][ T4864] RAX: ffff88823b000000 RBX: 0000000062405857 RCX: 0000000000000003 [ 64.758044][ T4864] RDX: 0000000000005857 RSI: 0000000000000cc0 RDI: 000000001d26f840 [ 64.766033][ T4864] RBP: ffffc9000153f5b8 R08: 00000000bd03d427 R09: 0000000000000000 [ 64.774042][ T4864] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000000f [ 64.782158][ T4864] R13: 000000000000000f R14: 00003680ffffea00 R15: ffff88823b02c2b8 [ 64.790175][ T4864] FS: 00007f867a3c88c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 64.799149][ T4864] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.805736][ T4864] CR2: 00003680ffffea08 CR3: 00000000151c8000 CR4: 00000000001506f0 [ 64.813730][ T4864] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.821766][ T4864] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.830020][ T4864] Kernel panic - not syncing: Fatal exception [ 64.836845][ T4864] Kernel Offset: disabled [ 64.841897][ T4864] Rebooting in 86400 seconds..