[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.188657] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 15.598546] random: sshd: uninitialized urandom read (32 bytes read) [ 15.801671] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.437958] random: sshd: uninitialized urandom read (32 bytes read) [ 32.071610] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.5' (ECDSA) to the list of known hosts. [ 37.474233] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 37.568448] IPVS: ftp: loaded support on port[0] = 21 [ 37.594391] FAULT_INJECTION: forcing a failure. [ 37.594391] name failslab, interval 1, probability 0, space 0, times 1 [ 37.605646] CPU: 0 PID: 4429 Comm: syz-executor697 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 37.614127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.623461] Call Trace: [ 37.626032] dump_stack+0x1c9/0x2b4 [ 37.629651] ? dump_stack_print_info.cold.2+0x52/0x52 [ 37.634826] should_fail.cold.4+0xa/0x11 [ 37.638870] ? kasan_unpoison_shadow+0x35/0x50 [ 37.643433] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 37.648590] ? trace_hardirqs_on+0x10/0x10 [ 37.653737] ? trace_hardirqs_on+0x10/0x10 [ 37.657951] ? __isolate_free_page+0x690/0x690 [ 37.662515] ? __account_cfs_rq_runtime+0x770/0x770 [ 37.667534] ? trace_hardirqs_on+0x10/0x10 [ 37.671755] __should_failslab+0x124/0x180 [ 37.675984] should_failslab+0x9/0x14 [ 37.679768] kmem_cache_alloc+0x47/0x760 [ 37.683896] xas_alloc+0x38a/0x490 [ 37.687416] ? minmax_running_min+0x690/0x690 [ 37.691890] xas_create+0x716/0x1150 [ 37.695588] ? fs_reclaim_acquire+0x20/0x20 [ 37.699889] ? xas_descend+0x5f0/0x5f0 [ 37.703754] ? lock_acquire+0x1e4/0x540 [ 37.707710] ? percpu_ref_tryget_live+0x143/0x440 [ 37.712531] ? lock_downgrade+0x8f0/0x8f0 [ 37.716677] ? lock_release+0xa30/0xa30 [ 37.720627] ? __alloc_pages_nodemask+0x6e3/0xdb0 [ 37.725447] ? trace_hardirqs_on+0xd/0x10 [ 37.729572] ? try_charge+0xbc2/0x1680 [ 37.733463] xas_store+0xce/0x1720 [ 37.736992] ? xas_find_tagged+0x1440/0x1440 [ 37.741380] ? lock_acquire+0x1e4/0x540 [ 37.745332] ? shmem_add_to_page_cache+0x8b9/0x1450 [ 37.750336] ? xa_find_after+0x9a0/0x9a0 [ 37.754373] ? percpu_ref_put_many+0x119/0x240 [ 37.759216] ? lock_downgrade+0x8f0/0x8f0 [ 37.763341] ? xas_find_conflict+0x360/0x8d0 [ 37.767748] ? kasan_check_write+0x14/0x20 [ 37.772207] ? do_raw_spin_lock+0xc1/0x200 [ 37.776421] shmem_add_to_page_cache+0x98e/0x1450 [ 37.781486] ? shmem_write_end+0x9a0/0x9a0 [ 37.785786] ? mem_cgroup_try_charge+0x548/0xa70 [ 37.790607] ? mem_cgroup_protected+0xa60/0xa60 [ 37.795268] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.801341] ? shmem_alloc_and_acct_page+0x31a/0x820 [ 37.806434] ? shmem_getattr+0x2c0/0x2c0 [ 37.810494] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.815055] ? kasan_check_write+0x14/0x20 [ 37.819271] shmem_getpage_gfp+0xaad/0x3ec0 [ 37.823583] ? shmem_writepage+0x13a0/0x13a0 [ 37.827970] ? trace_hardirqs_on+0x10/0x10 [ 37.832183] ? is_bpf_text_address+0xae/0x170 [ 37.836754] ? lock_acquire+0x1e4/0x540 [ 37.840712] ? try_to_wake_up+0x10a/0x12b0 [ 37.844924] ? lock_downgrade+0x8f0/0x8f0 [ 37.849057] ? lock_downgrade+0x8f0/0x8f0 [ 37.853182] ? kasan_check_read+0x11/0x20 [ 37.857327] ? do_raw_spin_unlock+0xa7/0x2f0 [ 37.861722] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 37.866294] ? kasan_check_write+0x14/0x20 [ 37.870506] ? do_raw_spin_lock+0xc1/0x200 [ 37.874719] ? trace_hardirqs_off+0xd/0x10 [ 37.878932] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 37.884013] ? trace_hardirqs_on+0x10/0x10 [ 37.888226] ? migrate_swap_stop+0x850/0x850 [ 37.892625] ? trace_hardirqs_on+0x10/0x10 [ 37.896839] ? lock_acquire+0x1e4/0x540 [ 37.900790] ? is_bpf_text_address+0xae/0x170 [ 37.905272] ? lock_downgrade+0x8f0/0x8f0 [ 37.909398] ? trace_hardirqs_on+0x10/0x10 [ 37.913611] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.919126] ? page_mapping+0x44f/0x5e0 [ 37.923189] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.928714] ? mark_page_accessed+0x672/0xd30 [ 37.933189] ? shmem_parse_options.cold.52+0x49/0x49 [ 37.938291] ? activate_page+0x9a0/0x9a0 [ 37.942331] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 37.947859] ? __set_page_dirty_no_writeback+0x14a/0x290 [ 37.953299] ? do_writepages+0x1a0/0x1a0 [ 37.957830] ? lock_acquire+0x1e4/0x540 [ 37.961783] ? is_bpf_text_address+0xae/0x170 [ 37.966255] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 37.971252] ? sanity+0x238/0x330 [ 37.974685] ? do_writepages+0x1a0/0x1a0 [ 37.978734] ? kasan_check_write+0x14/0x20 [ 37.982947] ? copy_page_to_iter+0x534/0xf50 [ 37.987350] ? _copy_to_iter+0x1540/0x1540 [ 37.991568] ? unlock_page+0x1d1/0x2c0 [ 37.995430] ? wake_up_page_bit+0x5b0/0x5b0 [ 37.999731] ? rcu_note_context_switch+0x730/0x730 [ 38.004641] ? check_same_owner+0x340/0x340 [ 38.008946] shmem_file_read_iter+0x399/0x1090 [ 38.013517] ? shmem_fallocate+0x12e0/0x12e0 [ 38.017904] ? mem_cgroup_id_get_online+0x310/0x310 [ 38.022907] ? trace_hardirqs_on+0xd/0x10 [ 38.027032] ? queue_work_on+0x12c/0x1e0 [ 38.031082] ? memcg_kmem_get_cache+0x691/0x9d0 [ 38.035729] ? mem_cgroup_handle_over_high+0x130/0x130 [ 38.040981] ? fs_reclaim_acquire+0x20/0x20 [ 38.045292] ? lock_downgrade+0x8f0/0x8f0 [ 38.049418] ? lock_downgrade+0x8f0/0x8f0 [ 38.053548] ? __lockdep_init_map+0x105/0x590 [ 38.058109] ? lockdep_init_map+0x9/0x10 [ 38.062436] ? debug_mutex_init+0x2d/0x60 [ 38.066563] ? __mutex_init+0x1f7/0x290 [ 38.070525] ? __ia32_sys_membarrier+0x150/0x150 [ 38.075276] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.080791] ? fsnotify+0xbac/0x14e0 [ 38.084484] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.089476] ? iov_iter_pipe+0xc2/0x2f0 [ 38.093442] generic_file_splice_read+0x5cd/0x9d0 [ 38.098265] ? add_to_pipe+0x360/0x360 [ 38.102135] ? rw_verify_area+0x118/0x360 [ 38.106262] ? add_to_pipe+0x360/0x360 [ 38.110126] do_splice_to+0x12e/0x190 [ 38.113905] splice_direct_to_actor+0x270/0x8f0 [ 38.118564] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.124187] ? pipe_to_sendpage+0x400/0x400 [ 38.129367] ? do_splice_to+0x190/0x190 [ 38.133320] ? security_file_permission+0x1c2/0x230 [ 38.138326] ? rw_verify_area+0x118/0x360 [ 38.142452] do_splice_direct+0x2d4/0x420 [ 38.146578] ? splice_direct_to_actor+0x8f0/0x8f0 [ 38.151408] ? rw_verify_area+0x118/0x360 [ 38.155628] do_sendfile+0x62a/0xe20 [ 38.159332] ? do_compat_pwritev64+0x1c0/0x1c0 [ 38.163895] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.169408] ? _copy_from_user+0xdf/0x150 [ 38.173552] __x64_sys_sendfile64+0x15d/0x250 [ 38.178035] ? __ia32_sys_sendfile+0x2a0/0x2a0 [ 38.182599] do_syscall_64+0x1b9/0x820 [ 38.186586] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.191499] ? syscall_return_slowpath+0x31d/0x5e0 [ 38.196409] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.201402] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.206407] ? perf_trace_sys_enter+0xb10/0xb10 [ 38.211316] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.216236] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.221402] RIP: 0033:0x441c29 [ 38.224566] Code: e8 ec b5 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 38.243853] RSP: 002b:00007fff6e973338 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 38.251541] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c29 [ 38.258961] RDX: 0000000020000180 RSI: 0000000000000004 RDI: 0000000000000003 [ 38.266207] RBP: 00007fff6e973350 R08: 0000000000000001 R09: 0000000000000000 [ 38.273453] R10: 0a00004000000002 R11: 0000000000000246 R12: ffffffffffffffff [ 38.280892] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 38.289124] page:ffffea0007058b00 count:3 mapcount:0 mapping:ffff8801a7576ab8 index:0x16e [ 38.297474] flags: 0x2fffc0000001028(uptodate|lru|private) [ 38.303112] raw: 02fffc0000001028 ffffea0007011dc8 ffffea0007058b48 ffff8801a7576ab8 [ 38.311024] raw: 000000000000016e ffff8801a7588930 00000003ffffffff ffff8801d9a44c80 [ 38.318901] page dumped because: VM_BUG_ON_PAGE(page_to_pgoff(page) != index) [ 38.326172] page->mem_cgroup:ffff8801d9a44c80 [ 38.330713] ------------[ cut here ]------------ [ 38.335458] kernel BUG at mm/shmem.c:815! [ 38.339615] invalid opcode: 0000 [#1] SMP KASAN [ 38.344288] CPU: 0 PID: 4429 Comm: syz-executor697 Not tainted 4.18.0-rc3-next-20180706+ #1 [ 38.352925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.362283] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 38.367273] 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 [ 38.386561] RSP: 0018:ffff8801ab88e158 EFLAGS: 00010246 [ 38.391901] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 38.399161] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed0035711c18 [ 38.406423] RBP: ffff8801ab88e8d0 R08: ffff8801a7af04c0 R09: ffffed003b5c4fc0 [ 38.413673] R10: ffffed003b5c4fc0 R11: ffff8801dae27e07 R12: ffffea0007058b00 [ 38.420919] R13: ffff8801ab88e8a8 R14: 0000000000000001 R15: 000000000000016e [ 38.428167] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 38.436377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.442235] CR2: 00000000004b625c CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 38.449485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.456734] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.463980] Call Trace: [ 38.466553] ? shmem_get_link+0x690/0x690 [ 38.470693] ? lock_release+0xa30/0xa30 [ 38.474751] ? free_unref_page_commit.isra.87+0x610/0x610 [ 38.480267] ? __mem_cgroup_threshold+0x240/0x740 [ 38.485088] ? trace_hardirqs_on+0x10/0x10 [ 38.489301] ? lock_downgrade+0x8f0/0x8f0 [ 38.493431] ? kasan_check_write+0x14/0x20 [ 38.497730] ? memcg_check_events+0x1ce/0x5f0 [ 38.502223] ? trace_hardirqs_on+0x10/0x10 [ 38.506448] ? start_stop_khugepaged.cold.50+0x46/0x46 [ 38.512118] ? lock_acquire+0x1e4/0x540 [ 38.516159] ? debug_check_no_obj_freed+0x30b/0x595 [ 38.521156] ? lock_downgrade+0x8f0/0x8f0 [ 38.525284] ? kasan_check_read+0x11/0x20 [ 38.529433] ? do_raw_spin_unlock+0xa7/0x2f0 [ 38.533818] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 38.538391] ? kasan_check_write+0x14/0x20 [ 38.542604] ? do_raw_spin_lock+0xc1/0x200 [ 38.546819] ? trace_hardirqs_on+0xd/0x10 [ 38.550946] ? free_unref_page_commit.isra.87+0x1ac/0x610 [ 38.556463] ? drain_local_pages_wq+0x20/0x20 [ 38.560951] ? free_obj_work+0xbb0/0xbb0 [ 38.564990] ? lock_acquire+0x1e4/0x540 [ 38.568943] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 38.574547] ? kernel_poison_pages+0x136/0x220 [ 38.579108] ? trace_hardirqs_on+0xd/0x10 [ 38.583236] ? trace_hardirqs_on+0x10/0x10 [ 38.587458] ? trace_hardirqs_on+0x10/0x10 [ 38.591680] ? __page_frag_cache_drain+0x1f0/0x1f0 [ 38.596589] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.602110] shmem_truncate_range+0x27/0xa0 [ 38.606673] shmem_evict_inode+0x3b2/0xcb0 [ 38.610986] ? trace_hardirqs_on+0x10/0x10 [ 38.615374] ? do_raw_spin_lock+0xc1/0x200 [ 38.619588] ? shmem_truncate_range+0xa0/0xa0 [ 38.624063] ? release_pages+0x7cf/0x14e0 [ 38.628193] ? lock_acquire+0x1e4/0x540 [ 38.632150] ? inode_wait_for_writeback+0x2f/0x40 [ 38.636971] ? lock_downgrade+0x8f0/0x8f0 [ 38.641097] ? evict+0x468/0x990 [ 38.644530] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.650048] ? __inode_wait_for_writeback+0x2cf/0x380 [ 38.656455] ? kasan_check_read+0x11/0x20 [ 38.660582] ? do_raw_spin_unlock+0xa7/0x2f0 [ 38.665055] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 38.669628] ? kasan_check_write+0x14/0x20 [ 38.673840] ? do_raw_spin_lock+0xc1/0x200 [ 38.678070] ? shmem_truncate_range+0xa0/0xa0 [ 38.682562] evict+0x4ae/0x990 [ 38.685733] ? destroy_inode+0x200/0x200 [ 38.689775] ? do_raw_spin_lock+0xc1/0x200 [ 38.694003] ? lock_downgrade+0x8f0/0x8f0 [ 38.698221] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 38.703748] ? kasan_check_read+0x11/0x20 [ 38.707879] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 38.712444] iput+0x635/0xaa0 [ 38.715530] ? fsnotify_final_mark_destroy+0xc0/0xc0 [ 38.720776] ? inode_add_lru+0x2a0/0x2a0 [ 38.724817] ? fsnotify_destroy_marks+0x2e7/0x5c0 [ 38.729648] ? kasan_check_read+0x11/0x20 [ 38.733858] ? do_raw_spin_unlock+0xa7/0x2f0 [ 38.738245] ? fsnotify_clear_marks_by_group+0x640/0x640 [ 38.743678] ? debug_object_active_state+0x2f5/0x4d0 [ 38.748765] dentry_unlink_inode+0x4ae/0x640 [ 38.753153] ? kasan_check_read+0x11/0x20 [ 38.757291] ? d_lru_add+0x120/0x120 [ 38.761169] ? kasan_check_write+0x14/0x20 [ 38.765384] ? do_raw_spin_lock+0xc1/0x200 [ 38.769597] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.775127] ? lockref_mark_dead+0xef/0x170 [ 38.779574] ? lockref_get_not_dead+0x90/0x90 [ 38.784089] ? lock_acquire+0x1e4/0x540 [ 38.788047] __dentry_kill+0x44c/0x7a0 [ 38.791917] ? d_drop+0x70/0x70 [ 38.795181] ? do_raw_spin_lock+0x200/0x200 [ 38.799492] ? lock_release+0xa30/0xa30 [ 38.803662] ? check_same_owner+0x340/0x340 [ 38.808313] dentry_kill+0xc9/0x5a0 [ 38.811922] dput.part.26+0x66b/0x7a0 [ 38.815702] ? shrink_dcache_sb+0x350/0x350 [ 38.820014] ? rcu_note_context_switch+0x730/0x730 [ 38.824926] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 38.829940] dput+0x15/0x20 [ 38.832851] __fput+0x558/0x930 [ 38.836253] ? fput+0x1a0/0x1a0 [ 38.839511] ? check_same_owner+0x340/0x340 [ 38.843813] ? kasan_check_write+0x14/0x20 [ 38.848026] ? do_raw_spin_lock+0xc1/0x200 [ 38.852240] ____fput+0x15/0x20 [ 38.855859] task_work_run+0x1ec/0x2a0 [ 38.859749] ? task_work_cancel+0x250/0x250 [ 38.864050] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 38.869565] ? switch_task_namespaces+0xa2/0xd0 [ 38.874214] do_exit+0x1b08/0x2750 [ 38.877735] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.883255] ? mm_update_next_owner+0x9a0/0x9a0 [ 38.887916] ? ktime_get_coarse_real_ts64+0x243/0x3a0 [ 38.893088] ? init_special_inode+0x210/0x210 [ 38.897566] ? release_sock+0x1ec/0x2c0 [ 38.901521] ? lock_downgrade+0x8f0/0x8f0 [ 38.905649] ? lock_downgrade+0x8f0/0x8f0 [ 38.909779] ? kasan_check_read+0x11/0x20 [ 38.913919] ? do_raw_spin_unlock+0xa7/0x2f0 [ 38.918308] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 38.922871] ? release_sock+0x1ec/0x2c0 [ 38.926825] ? trace_hardirqs_on+0xd/0x10 [ 38.930950] ? __local_bh_enable_ip+0x161/0x230 [ 38.935609] ? trace_hardirqs_on+0x10/0x10 [ 38.939823] ? release_sock+0x1ec/0x2c0 [ 38.943775] ? __release_sock+0x3a0/0x3a0 [ 38.947918] ? tcp_sendpage_locked+0xc0/0xc0 [ 38.952422] ? current_time+0x72/0x1b0 [ 38.956293] ? lock_downgrade+0x8f0/0x8f0 [ 38.960419] ? inet_sendmsg+0x690/0x690 [ 38.964387] ? lock_release+0xa30/0xa30 [ 38.968341] ? kernel_sendpage+0x9a/0xf0 [ 38.972383] ? memset+0x31/0x40 [ 38.975647] ? __dequeue_signal+0xf9/0x7d0 [ 38.979861] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.985373] ? recalc_sigpending_tsk+0x140/0x180 [ 38.990106] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 38.995630] ? recalc_sigpending_tsk+0x180/0x180 [ 39.000373] ? get_signal+0x918/0x1970 [ 39.004248] ? lock_downgrade+0x8f0/0x8f0 [ 39.008376] ? generic_pipe_buf_nosteal+0x10/0x10 [ 39.013210] do_group_exit+0x177/0x440 [ 39.017082] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 39.021641] ? __ia32_sys_exit+0x50/0x50 [ 39.025680] ? kasan_check_write+0x14/0x20 [ 39.029890] ? do_raw_spin_lock+0xc1/0x200 [ 39.034102] get_signal+0x88e/0x1970 [ 39.037805] ? ptrace_notify+0x130/0x130 [ 39.041844] ? splice_direct_to_actor+0x470/0x8f0 [ 39.046667] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.052185] ? pipe_to_sendpage+0x400/0x400 [ 39.056503] ? do_splice_to+0x190/0x190 [ 39.060461] ? security_file_permission+0x1c2/0x230 [ 39.065471] ? rw_verify_area+0x118/0x360 [ 39.069598] do_signal+0x9c/0x21c0 [ 39.073120] ? splice_direct_to_actor+0x8f0/0x8f0 [ 39.077943] ? setup_sigcontext+0x7d0/0x7d0 [ 39.082246] ? lock_acquire+0x1e4/0x540 [ 39.086200] ? __might_fault+0x12b/0x1e0 [ 39.090239] ? lock_downgrade+0x8f0/0x8f0 [ 39.094370] exit_to_usermode_loop+0x2e0/0x370 [ 39.098931] ? syscall_slow_exit_work+0x500/0x500 [ 39.103762] do_syscall_64+0x6be/0x820 [ 39.107629] ? syscall_return_slowpath+0x5e0/0x5e0 [ 39.112625] ? syscall_return_slowpath+0x31d/0x5e0 [ 39.117542] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 39.122534] ? prepare_exit_to_usermode+0x291/0x3b0 [ 39.127547] ? perf_trace_sys_enter+0xb10/0xb10 [ 39.132201] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.137031] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 39.142197] RIP: 0033:0x441c29 [ 39.145374] Code: Bad RIP value. [ 39.148812] RSP: 002b:00007fff6e973338 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 39.156597] RAX: ffffffffffffffe0 RBX: 0000000000000000 RCX: 0000000000441c29 [ 39.163845] RDX: 0000000020000180 RSI: 0000000000000004 RDI: 0000000000000003 [ 39.171178] RBP: 00007fff6e973350 R08: 0000000000000001 R09: 0000000000000000 [ 39.178465] R10: 0a00004000000002 R11: 0000000000000246 R12: ffffffffffffffff [ 39.185775] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 39.193032] Modules linked in: [ 39.196205] Dumping ftrace buffer: [ 39.199724] (ftrace buffer empty) [ 39.203569] ---[ end trace 68c2f261fd3bbf54 ]--- [ 39.208335] RIP: 0010:shmem_undo_range+0xdaa/0x29a0 [ 39.213464] 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 [ 39.232629] RSP: 0018:ffff8801ab88e158 EFLAGS: 00010246 [ 39.238088] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 39.245368] RDX: 0000000000000000 RSI: ffffffff81aaab95 RDI: ffffed0035711c18 [ 39.252761] RBP: ffff8801ab88e8d0 R08: ffff8801a7af04c0 R09: ffffed003b5c4fc0 [ 39.260040] R10: ffffed003b5c4fc0 R11: ffff8801dae27e07 R12: ffffea0007058b00 [ 39.267481] R13: ffff8801ab88e8a8 R14: 0000000000000001 R15: 000000000000016e [ 39.274756] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 39.282979] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.288864] CR2: 0000000000441bff CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 39.296142] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.303423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.310784] Kernel panic - not syncing: Fatal exception [ 39.316679] Dumping ftrace buffer: [ 39.320205] (ftrace buffer empty) [ 39.323893] Kernel Offset: disabled [ 39.327500] Rebooting in 86400 seconds..