[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.177769] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.315382] random: sshd: uninitialized urandom read (32 bytes read) [ 19.620340] random: sshd: uninitialized urandom read (32 bytes read) [ 20.327551] random: sshd: uninitialized urandom read (32 bytes read) [ 20.462183] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. [ 25.982440] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 26.069406] FAULT_INJECTION: forcing a failure. [ 26.069406] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 26.081229] CPU: 1 PID: 4451 Comm: syz-executor101 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 26.089705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.099042] Call Trace: [ 26.101622] dump_stack+0x1c9/0x2b4 [ 26.105243] ? dump_stack_print_info.cold.2+0x52/0x52 [ 26.110426] should_fail.cold.4+0xa/0x11 [ 26.114470] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 26.119554] ? kasan_check_read+0x11/0x20 [ 26.123681] ? do_raw_spin_unlock+0xa7/0x2f0 [ 26.128083] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 26.132660] ? kasan_check_write+0x14/0x20 [ 26.136877] ? trace_hardirqs_on+0x10/0x10 [ 26.141094] ? _raw_spin_unlock+0x22/0x30 [ 26.145223] ? do_huge_pmd_anonymous_page+0x519/0x1b60 [ 26.150482] ? __thp_get_unmapped_area+0x180/0x180 [ 26.155391] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.160914] ? generic_update_time+0x26a/0x450 [ 26.165474] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.170989] ? should_fail+0x246/0xd86 [ 26.174857] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 26.179938] ? lock_downgrade+0x8f0/0x8f0 [ 26.184067] __alloc_pages_nodemask+0x36e/0xdb0 [ 26.188726] ? __handle_mm_fault+0x972/0x4480 [ 26.193200] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 26.198197] ? vmf_insert_mixed_mkwrite+0xa0/0xa0 [ 26.203031] ? lock_acquire+0x1e4/0x540 [ 26.206991] ? fs_reclaim_acquire+0x20/0x20 [ 26.211296] ? lock_downgrade+0x8f0/0x8f0 [ 26.215424] ? lock_downgrade+0x8f0/0x8f0 [ 26.219553] ? lock_release+0xa30/0xa30 [ 26.223503] ? lock_release+0xa30/0xa30 [ 26.227463] ? check_same_owner+0x340/0x340 [ 26.231761] ? mem_cgroup_from_task+0xcb/0x1f0 [ 26.236323] cache_grow_begin+0x91/0x710 [ 26.240366] kmem_cache_alloc+0x689/0x760 [ 26.244522] ? __handle_mm_fault+0x4480/0x4480 [ 26.249095] getname_flags+0xd0/0x5a0 [ 26.252874] getname+0x19/0x20 [ 26.256048] do_sys_open+0x3a2/0x720 [ 26.259749] ? mm_fault_error+0x302/0x380 [ 26.263886] ? filp_open+0x80/0x80 [ 26.267413] ? syscall_slow_exit_work+0x500/0x500 [ 26.272238] __x64_sys_open+0x7e/0xc0 [ 26.276018] do_syscall_64+0x1b9/0x820 [ 26.279892] ? syscall_return_slowpath+0x5e0/0x5e0 [ 26.284801] ? syscall_return_slowpath+0x31d/0x5e0 [ 26.289708] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 26.294708] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.300224] ? prepare_exit_to_usermode+0x291/0x3b0 [ 26.305218] ? perf_trace_sys_enter+0xb10/0xb10 [ 26.309867] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.314711] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 26.319887] RIP: 0033:0x401250 [ 26.323058] Code: 01 f0 ff ff 0f 83 30 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 3d 0b 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 04 0a 00 00 c3 48 83 ec 08 e8 ba 00 00 00 [ 26.342182] RSP: 002b:00007ffdb97cfef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 26.349877] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000401250 [ 26.357131] RDX: 00007ffdb97cff21 RSI: 0000000000080001 RDI: 00000000004a22a0 [ 26.364381] RBP: 00000000004a22a0 R08: 0000000000000000 R09: 0000000000000001 [ 26.371628] R10: 0000000000000032 R11: 0000000000000246 R12: 00000000004020e0 [ 26.378879] R13: 0000000000402170 R14: 0000000000000000 R15: 0000000000000000 [ 26.387359] FAULT_INJECTION: forcing a failure. [ 26.387359] name failslab, interval 1, probability 0, space 0, times 1 [ 26.398555] CPU: 1 PID: 4451 Comm: syz-executor101 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 26.407022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.416362] Call Trace: [ 26.418933] dump_stack+0x1c9/0x2b4 [ 26.422542] ? dump_stack_print_info.cold.2+0x52/0x52 [ 26.427723] ? __kernel_text_address+0xd/0x40 [ 26.432198] ? unwind_get_return_address+0x61/0xa0 [ 26.437118] should_fail.cold.4+0xa/0x11 [ 26.441158] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 26.446242] ? save_stack+0xa9/0xd0 [ 26.449849] ? kasan_kmalloc+0xc4/0xe0 [ 26.453713] ? kasan_slab_alloc+0x12/0x20 [ 26.457839] ? kmem_cache_alloc+0x12e/0x760 [ 26.462141] ? xas_alloc+0x38a/0x490 [ 26.465834] ? xas_create+0x716/0x1150 [ 26.469710] ? xas_store+0xce/0x1720 [ 26.473406] ? shmem_add_to_page_cache+0x98e/0x1450 [ 26.478404] ? shmem_write_begin+0x10a/0x1e0 [ 26.482790] ? generic_perform_write+0x3ae/0x6c0 [ 26.487534] ? __generic_file_write_iter+0x26e/0x630 [ 26.492624] ? generic_file_write_iter+0x438/0x870 [ 26.497534] ? __vfs_write+0x6c6/0x9f0 [ 26.501399] ? vfs_write+0x1fc/0x560 [ 26.505098] ? ksys_pwrite64+0x181/0x1b0 [ 26.509137] ? __x64_sys_pwrite64+0x97/0xf0 [ 26.513438] ? do_syscall_64+0x1b9/0x820 [ 26.517479] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 26.522824] ? trace_hardirqs_on+0x10/0x10 [ 26.527048] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.532571] ? page_mapping+0x44f/0x5e0 [ 26.536530] ? mem_cgroup_uncharge+0x100/0x100 [ 26.541091] ? lock_acquire+0x1e4/0x540 [ 26.545044] ? lock_downgrade+0x8f0/0x8f0 [ 26.549168] ? lock_release+0xa30/0xa30 [ 26.553132] ? kasan_unpoison_shadow+0x35/0x50 [ 26.557694] __should_failslab+0x124/0x180 [ 26.561915] should_failslab+0x9/0x14 [ 26.565695] kmem_cache_alloc+0x47/0x760 [ 26.569736] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.575252] ? xas_descend+0x20c/0x5f0 [ 26.579119] xas_alloc+0x38a/0x490 [ 26.582652] ? minmax_running_min+0x690/0x690 [ 26.587138] xas_create+0x3ae/0x1150 [ 26.590833] ? xas_descend+0x5f0/0x5f0 [ 26.594705] ? rcu_note_context_switch+0x730/0x730 [ 26.599617] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 26.604442] xas_store+0xce/0x1720 [ 26.607959] ? xas_find_tagged+0x1440/0x1440 [ 26.612346] ? lock_acquire+0x1e4/0x540 [ 26.616302] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 26.621297] ? xa_find_after+0x9a0/0x9a0 [ 26.625347] ? xas_find_conflict+0x360/0x8d0 [ 26.629735] ? kasan_check_write+0x14/0x20 [ 26.633947] ? do_raw_spin_lock+0xc1/0x200 [ 26.638172] shmem_add_to_page_cache+0x98e/0x1450 [ 26.642996] ? shmem_write_end+0x9a0/0x9a0 [ 26.647219] ? mem_cgroup_try_charge+0x4ff/0xa70 [ 26.651961] ? mem_cgroup_protected+0xa60/0xa60 [ 26.656614] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.662142] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 26.667225] ? shmem_getattr+0x2c0/0x2c0 [ 26.671264] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 26.675825] ? kasan_check_write+0x14/0x20 [ 26.680059] shmem_getpage_gfp+0xaad/0x3ec0 [ 26.684365] ? shmem_writepage+0x13a0/0x13a0 [ 26.688758] ? trace_hardirqs_on+0x10/0x10 [ 26.692971] ? lock_acquire+0x1e4/0x540 [ 26.696924] ? lockref_put_or_lock+0x6f/0x90 [ 26.701313] ? trace_hardirqs_on+0x10/0x10 [ 26.705535] ? dput.part.26+0x248/0x7a0 [ 26.709491] ? trace_hardirqs_on+0x10/0x10 [ 26.713706] ? trace_hardirqs_on+0x10/0x10 [ 26.717918] ? trace_hardirqs_on+0x10/0x10 [ 26.722131] ? trace_hardirqs_on+0x10/0x10 [ 26.726346] ? shrink_dcache_sb+0x350/0x350 [ 26.730648] ? __kasan_slab_free+0x131/0x170 [ 26.735047] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.740568] ? page_mapping+0x44f/0x5e0 [ 26.744524] ? shmem_parse_options.cold.52+0x49/0x49 [ 26.749608] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.755126] ? __set_page_dirty_no_writeback+0x14a/0x290 [ 26.760557] ? do_writepages+0x1a0/0x1a0 [ 26.764608] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 26.769604] ? do_writepages+0x1a0/0x1a0 [ 26.773730] ? set_page_dirty+0x36f/0x6f0 [ 26.777854] ? __writepage+0xe0/0xe0 [ 26.781549] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.787070] ? balance_dirty_pages_ratelimited+0x1f7/0x2200 [ 26.792769] ? bpf_prog_kallsyms_find+0xde/0x4c0 [ 26.797503] ? balance_dirty_pages+0x37b0/0x37b0 [ 26.802241] ? unlock_page+0x1d1/0x2c0 [ 26.806111] ? trace_hardirqs_on+0x10/0x10 [ 26.810328] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 26.815847] ? shmem_write_end+0x374/0x9a0 [ 26.820060] ? shmem_unused_huge_scan+0x180/0x180 [ 26.824881] ? current_time+0x72/0x1b0 [ 26.828747] ? lock_downgrade+0x8f0/0x8f0 [ 26.832874] ? kasan_check_write+0x14/0x20 [ 26.837094] ? copyin+0xb7/0x100 [ 26.840444] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.845965] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 26.850961] ? iov_iter_advance+0x2ec/0x14e0 [ 26.855352] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.860879] ? iov_iter_fault_in_readable+0x23d/0x460 [ 26.866049] ? copy_page_from_iter+0x890/0x890 [ 26.870611] ? __sanitizer_cov_trace_cmp4+0x10/0x20 [ 26.875616] shmem_write_begin+0x10a/0x1e0 [ 26.879836] generic_perform_write+0x3ae/0x6c0 [ 26.884409] ? add_page_wait_queue+0x2c0/0x2c0 [ 26.888972] ? current_time+0x1b0/0x1b0 [ 26.892927] ? down_write+0x8f/0x130 [ 26.896622] __generic_file_write_iter+0x26e/0x630 [ 26.901538] ? timespec64_trunc+0xea/0x180 [ 26.905754] generic_file_write_iter+0x438/0x870 [ 26.910491] ? __generic_file_write_iter+0x630/0x630 [ 26.915575] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 26.921093] ? iov_iter_init+0xc9/0x1f0 [ 26.925052] __vfs_write+0x6c6/0x9f0 [ 26.928753] ? kernel_read+0x120/0x120 [ 26.932622] ? lock_release+0xa30/0xa30 [ 26.936584] ? check_same_owner+0x340/0x340 [ 26.940892] ? __fget_light+0x2f7/0x440 [ 26.944845] ? fget_raw+0x20/0x20 [ 26.948278] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.953793] ? __sb_start_write+0x17f/0x300 [ 26.958103] vfs_write+0x1fc/0x560 [ 26.961624] ksys_pwrite64+0x181/0x1b0 [ 26.965496] ? __ia32_sys_pread64+0xf0/0xf0 [ 26.969802] ? __sb_end_write+0xac/0xe0 [ 26.973768] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 26.979282] ? do_sys_ftruncate+0x44e/0x560 [ 26.983591] __x64_sys_pwrite64+0x97/0xf0 [ 26.987724] do_syscall_64+0x1b9/0x820 [ 26.991592] ? syscall_return_slowpath+0x5e0/0x5e0 [ 26.996505] ? syscall_return_slowpath+0x31d/0x5e0 [ 27.001414] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 27.006416] ? prepare_exit_to_usermode+0x291/0x3b0 [ 27.011412] ? perf_trace_sys_enter+0xb10/0xb10 [ 27.016067] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.020891] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 27.026055] RIP: 0033:0x4012b3 [ 27.029217] Code: ff 0f 83 d0 09 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d dd 0a 2d 00 00 75 17 49 89 ca b8 12 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 a1 09 00 00 c3 48 83 ec 08 e8 57 00 00 00 [ 27.048335] RSP: 002b:00007ffdb97d01b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 27.056021] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004012b3 [ 27.063269] RDX: 0000000008100000 RSI: 0000000020001300 RDI: 0000000000000005 [ 27.070516] RBP: 0000000020000710 R08: 0000000020000718 R09: 00007ffdb97d03b0 [ 27.077764] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 27.085017] R13: 0000000000000005 R14: 0000000000000005 R15: 0000000000000000 [ 27.133349] page:ffffea0006d98780 count:3 mapcount:0 mapping:ffff8801a7b26af8 index:0x18 [ 27.141663] flags: 0x2fffc0000001038(uptodate|dirty|lru|private) [ 27.147872] raw: 02fffc0000001038 ffffea0006d24448 ffffea0006d987c8 ffff8801a7b26af8 [ 27.155782] raw: 0000000000000018 ffff8801a79422a0 00000003ffffffff ffff8801d9a44c80 [ 27.163676] page dumped because: VM_BUG_ON_PAGE(page_to_pgoff(page) != index) [ 27.170945] page->mem_cgroup:ffff8801d9a44c80 [ 27.175496] ------------[ cut here ]------------ [ 27.180228] kernel BUG at mm/shmem.c:815! [ 27.184392] invalid opcode: 0000 [#1] SMP KASAN [ 27.189063] CPU: 0 PID: 4451 Comm: syz-executor101 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 27.197527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.206868] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 27.211858] Code: 00 0f 85 bd 19 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 a5 f0 d6 ff 48 c7 c6 e0 32 f1 87 4c 89 e7 e8 16 10 05 00 <0f> 0b e8 8f f0 d6 ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 80 3c 18 [ 27.230988] RSP: 0018:ffff8801cb3feb80 EFLAGS: 00010246 [ 27.236335] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 27.243591] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed003967fd60 [ 27.250842] RBP: ffff8801cb3ff2f8 R08: ffff8801c245e500 R09: ffffed003b5c4fc0 [ 27.258093] R10: ffffed003b5c4fc0 R11: ffff8801dae27e07 R12: ffffea0006d98780 [ 27.265353] R13: ffff8801cb3ff2d0 R14: 0000000000000004 R15: 0000000000000018 [ 27.272604] FS: 0000000001646880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 27.280822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.286683] CR2: 0000000000625208 CR3: 00000001c277c000 CR4: 00000000001406f0 [ 27.293935] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.301181] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.308427] Call Trace: [ 27.311007] ? shmem_get_link+0x690/0x690 [ 27.315151] ? free_unref_page_commit.isra.87+0x610/0x610 [ 27.320675] ? rb_erase+0x3550/0x3550 [ 27.324461] ? trace_hardirqs_on+0x10/0x10 [ 27.328676] ? rb_erase+0x3550/0x3550 [ 27.332455] ? lock_release+0xa30/0xa30 [ 27.336411] ? lock_acquire+0x1e4/0x540 [ 27.340366] ? idle_cpu+0x1d0/0x1d0 [ 27.343972] ? lock_release+0xa30/0xa30 [ 27.347926] ? select_idle_sibling+0xcc/0xd90 [ 27.352412] ? lock_release+0xa30/0xa30 [ 27.356366] ? trace_hardirqs_on+0x10/0x10 [ 27.360578] ? cpuacct_css_alloc+0x160/0x160 [ 27.364968] ? __account_cfs_rq_runtime+0x770/0x770 [ 27.369962] ? lock_acquire+0x1e4/0x540 [ 27.373915] ? select_task_rq_fair+0x73b/0x32a0 [ 27.378568] ? lock_downgrade+0x8f0/0x8f0 [ 27.382699] ? account_entity_enqueue+0x3ec/0x700 [ 27.387520] ? __enqueue_entity+0x10d/0x1f0 [ 27.391821] ? enqueue_entity+0x34b/0x2130 [ 27.396045] ? put_prev_task_fair+0x80/0x80 [ 27.400351] ? enqueue_entity+0x34b/0x2130 [ 27.404588] ? trace_hardirqs_on+0x10/0x10 [ 27.408802] ? trace_hardirqs_on+0x10/0x10 [ 27.413019] ? rq_online_fair+0x4c0/0x4c0 [ 27.417154] ? free_unref_page+0x9a0/0x9a0 [ 27.421378] shmem_truncate_range+0x27/0xa0 [ 27.425686] shmem_evict_inode+0x3b2/0xcb0 [ 27.429898] ? check_preempt_curr+0x22b/0x3a0 [ 27.434372] ? shmem_truncate_range+0xa0/0xa0 [ 27.438849] ? trace_hardirqs_on+0x10/0x10 [ 27.443060] ? check_preempt_curr+0x3a0/0x3a0 [ 27.447537] ? lock_acquire+0x1e4/0x540 [ 27.451502] ? inode_wait_for_writeback+0x2f/0x40 [ 27.456324] ? lock_downgrade+0x8f0/0x8f0 [ 27.460452] ? evict+0x468/0x990 [ 27.463799] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 27.469313] ? __inode_wait_for_writeback+0x2cf/0x380 [ 27.474484] ? kasan_check_read+0x11/0x20 [ 27.478610] ? do_raw_spin_unlock+0xa7/0x2f0 [ 27.482995] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 27.487558] ? kasan_check_write+0x14/0x20 [ 27.491772] ? do_raw_spin_lock+0xc1/0x200 [ 27.495988] ? shmem_truncate_range+0xa0/0xa0 [ 27.500463] evict+0x4ae/0x990 [ 27.503637] ? destroy_inode+0x200/0x200 [ 27.507676] ? do_raw_spin_lock+0xc1/0x200 [ 27.511891] ? lock_downgrade+0x8f0/0x8f0 [ 27.516032] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 27.521553] ? kasan_check_read+0x11/0x20 [ 27.525680] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 27.530251] iput+0x635/0xaa0 [ 27.533350] ? fsnotify_final_mark_destroy+0xc0/0xc0 [ 27.538431] ? inode_add_lru+0x2a0/0x2a0 [ 27.542468] ? fsnotify_destroy_marks+0x2e7/0x5c0 [ 27.547288] ? kasan_check_read+0x11/0x20 [ 27.551412] ? do_raw_spin_unlock+0xa7/0x2f0 [ 27.555800] ? fsnotify_clear_marks_by_group+0x640/0x640 [ 27.561234] ? lock_downgrade+0x8f0/0x8f0 [ 27.565364] dentry_unlink_inode+0x4ae/0x640 [ 27.569752] ? d_lru_add+0x120/0x120 [ 27.573443] ? kasan_check_write+0x14/0x20 [ 27.577656] ? do_raw_spin_lock+0xc1/0x200 [ 27.581871] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.587394] ? lockref_mark_dead+0xef/0x170 [ 27.591694] ? lockref_get_not_dead+0x90/0x90 [ 27.596167] ? lock_acquire+0x1e4/0x540 [ 27.600137] __dentry_kill+0x44c/0x7a0 [ 27.604006] ? d_drop+0x70/0x70 [ 27.607285] ? do_raw_spin_lock+0x200/0x200 [ 27.611594] ? lock_release+0xa30/0xa30 [ 27.615546] ? check_same_owner+0x340/0x340 [ 27.619848] dentry_kill+0xc9/0x5a0 [ 27.623455] dput.part.26+0x66b/0x7a0 [ 27.627235] ? shrink_dcache_sb+0x350/0x350 [ 27.631537] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 27.636532] dput+0x15/0x20 [ 27.639444] __fput+0x558/0x930 [ 27.642702] ? fput+0x1a0/0x1a0 [ 27.645968] ? kasan_check_write+0x14/0x20 [ 27.650180] ? do_raw_spin_lock+0xc1/0x200 [ 27.654391] ____fput+0x15/0x20 [ 27.657649] task_work_run+0x1ec/0x2a0 [ 27.661514] ? task_work_cancel+0x250/0x250 [ 27.665813] ? copy_fd_bitmaps+0x210/0x210 [ 27.670037] ? do_sys_open+0x3cb/0x720 [ 27.673905] exit_to_usermode_loop+0x313/0x370 [ 27.678466] ? syscall_slow_exit_work+0x500/0x500 [ 27.683286] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.688804] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 27.694318] do_syscall_64+0x6be/0x820 [ 27.698183] ? syscall_return_slowpath+0x5e0/0x5e0 [ 27.703092] ? syscall_return_slowpath+0x31d/0x5e0 [ 27.707999] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 27.712998] ? prepare_exit_to_usermode+0x291/0x3b0 [ 27.717999] ? perf_trace_sys_enter+0xb10/0xb10 [ 27.722653] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.727488] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 27.732655] RIP: 0033:0x4011f0 [ 27.735824] Code: 01 f0 ff ff 0f 83 90 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 9d 0b 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 64 0a 00 00 c3 48 83 ec 08 e8 1a 01 00 00 [ 27.754944] RSP: 002b:00007ffdb97d01b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 27.762632] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000004011f0 [ 27.769883] RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000005 [ 27.777132] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000c [ 27.784379] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000000006 [ 27.791627] R13: 0000000000000005 R14: 0000000000000005 R15: 0000000000000000 [ 27.798878] Modules linked in: [ 27.802053] Dumping ftrace buffer: [ 27.805573] (ftrace buffer empty) [ 27.809345] ---[ end trace ba3448a6a36817df ]--- [ 27.814133] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 27.819154] Code: 00 0f 85 bd 19 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 a5 f0 d6 ff 48 c7 c6 e0 32 f1 87 4c 89 e7 e8 16 10 05 00 <0f> 0b e8 8f f0 d6 ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 80 3c 18 [ 27.838420] RSP: 0018:ffff8801cb3feb80 EFLAGS: 00010246 [ 27.843795] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 27.851072] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed003967fd60 [ 27.858361] RBP: ffff8801cb3ff2f8 R08: ffff8801c245e500 R09: ffffed003b5c4fc0 [ 27.865631] R10: ffffed003b5c4fc0 R11: ffff8801dae27e07 R12: ffffea0006d98780 [ 27.872911] R13: ffff8801cb3ff2d0 R14: 0000000000000004 R15: 0000000000000018 [ 27.880185] FS: 0000000001646880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 27.888412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.894295] CR2: 0000000000625208 CR3: 00000001c277c000 CR4: 00000000001406f0 [ 27.901564] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.908833] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.916101] Kernel panic - not syncing: Fatal exception [ 27.921905] Dumping ftrace buffer: [ 27.925426] (ftrace buffer empty) [ 27.929111] Kernel Offset: disabled [ 27.932715] Rebooting in 86400 seconds..