[ 725.664815] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts. [ 731.555765] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 731.674508] audit: type=1400 audit(1556147393.655:36): avc: denied { map } for pid=7209 comm="syz-executor267" path="/root/syz-executor267121691" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 731.905571] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 731.913634] IP: kthread_stop+0x4c/0x650 [ 731.917591] PGD 92a52067 P4D 92a52067 PUD 92a4e067 PMD 0 [ 731.923148] Oops: 0002 [#1] PREEMPT SMP KASAN [ 731.927635] Modules linked in: [ 731.930816] CPU: 0 PID: 7394 Comm: syz-executor267 Not tainted 4.14.113 #3 [ 731.938019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 731.947359] task: ffff8880a121a0c0 task.stack: ffff88808ae80000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 731.953447] RIP: 0010:kthread_stop+0x4c/0x650 [ 731.957933] RSP: 0018:ffff88808ae87a20 EFLAGS: 00010297 [ 731.963312] RAX: ffff8880a121a0c0 RBX: 0000000000000000 RCX: 0000000000000000 [ 731.970567] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000286 [ 731.977921] RBP: ffff88808ae87a40 R08: ffff8880a121a0c0 R09: 0000000000000000 [ 731.985236] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 731.992632] R13: ffff88809bc90730 R14: ffff88809bc90728 R15: ffffffff89bb9b80 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 731.999887] FS: 000000000108d880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 732.008408] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 732.014276] CR2: 0000000000000020 CR3: 0000000092a4c000 CR4: 00000000001406f0 [ 732.021526] Call Trace: [ 732.024179] vivid_stop_generating_vid_cap+0x1b9/0x664 [ 732.029474] vid_cap_stop_streaming+0x7c/0xd0 [ 732.033958] ? vid_cap_buf_queue+0x230/0x230 [ 732.038403] __vb2_queue_cancel+0xa6/0x8a0 [ 732.042629] ? lock_downgrade+0x6e0/0x6e0 [ 732.046765] vb2_core_streamoff+0x52/0x110 [ 732.050995] __vb2_cleanup_fileio+0x78/0x150 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 732.055390] vb2_core_queue_release+0x1d/0x80 [ 732.059871] _vb2_fop_release+0x1cf/0x2a0 [ 732.064138] vb2_fop_release+0x75/0xc0 [ 732.068018] vivid_fop_release+0x180/0x3f0 [ 732.072237] ? vivid_remove+0x3d0/0x3d0 [ 732.076247] ? dev_debug_store+0xe0/0xe0 [ 732.080297] v4l2_release+0xfb/0x190 [ 732.084036] __fput+0x277/0x7a0 [ 732.087307] ____fput+0x16/0x20 [ 732.090574] task_work_run+0x119/0x190 [ 732.094509] do_exit+0x7df/0x2c10 [ 732.097953] ? mm_update_next_owner+0x5d0/0x5d0 [ 732.102604] ? up_read+0x1a/0x40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 732.105959] ? __do_page_fault+0x358/0xb80 [ 732.110183] do_group_exit+0x111/0x330 [ 732.114058] SyS_exit_group+0x1d/0x20 [ 732.117841] ? do_group_exit+0x330/0x330 [ 732.121890] do_syscall_64+0x1eb/0x630 [ 732.125760] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 732.130655] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 732.135826] RIP: 0033:0x443b78 [ 732.139047] RSP: 002b:00007fffdb2d3b78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 732.146742] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443b78 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 732.154002] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 732.161549] RBP: 00000000004c34f0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 732.168845] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001 [ 732.176195] R13: 00000000006d5180 R14: 0000000000000000 R15: 0000000000000000 [ 732.183475] Code: 00 65 8b 1d 67 2f c3 7e 83 fb 3f 0f 87 63 04 00 00 e8 29 95 1e 00 89 db 48 0f a3 1d 7f 93 e6 06 0f 82 4c 03 00 00 e8 14 95 1e 00 41 ff 44 24 20 49 8d 7c 24 24 48 b8 00 00 00 00 00 fc ff df executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 732.202594] RIP: kthread_stop+0x4c/0x650 RSP: ffff88808ae87a20 [ 732.208555] CR2: 0000000000000020 [ 732.212403] ---[ end trace 88b3314bc4a09a79 ]--- [ 732.217295] Kernel panic - not syncing: Fatal exception [ 732.223517] Kernel Offset: disabled [ 732.227264] Rebooting in 86400 seconds..