[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 56.905109][ T26] audit: type=1800 audit(1567067710.658:25): pid=8514 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 56.926904][ T26] audit: type=1800 audit(1567067710.668:26): pid=8514 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 56.947796][ T26] audit: type=1800 audit(1567067710.668:27): pid=8514 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.175' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.382457][ T8668] IPVS: ftp: loaded support on port[0] = 21 [ 67.413063][ T12] rxrpc: Assertion failed [ 67.417827][ T12] ------------[ cut here ]------------ [ 67.423373][ T12] kernel BUG at net/rxrpc/local_object.c:433! [ 67.431025][ T12] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 67.437086][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc5+ #151 [ 67.444599][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.454641][ T12] Workqueue: krxrpcd rxrpc_local_processor [ 67.460425][ T12] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 67.466725][ T12] Code: 5f 0d bf fa 0f 0b e8 84 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 4c 0d bf fa 0f 0b e8 71 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 39 0d bf fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 67.486302][ T12] RSP: 0018:ffff8880a98d7ce8 EFLAGS: 00010282 [ 67.492338][ T12] RAX: 0000000000000017 RBX: ffff88808ad376b8 RCX: 0000000000000000 [ 67.500285][ T12] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed101531af8f [ 67.508229][ T12] RBP: ffff8880a98d7d30 R08: 0000000000000017 R09: ffffed1015d060d1 [ 67.516175][ T12] R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: ffff88808ad36f48 [ 67.524137][ T12] R13: ffff888090030708 R14: ffff88808ad37680 R15: ffff88808799d040 [ 67.532092][ T12] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.541002][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.547557][ T12] CR2: 000000000049f2e0 CR3: 0000000008e6d000 CR4: 00000000001406f0 [ 67.555507][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.563463][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.571404][ T12] Call Trace: [ 67.574673][ T12] process_one_work+0x9af/0x1740 [ 67.579588][ T12] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.584934][ T12] ? lock_acquire+0x190/0x410 [ 67.589588][ T12] worker_thread+0x98/0xe40 [ 67.594064][ T12] ? trace_hardirqs_on+0x67/0x240 [ 67.599082][ T12] kthread+0x361/0x430 [ 67.603128][ T12] ? process_one_work+0x1740/0x1740 [ 67.608297][ T12] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 67.614512][ T12] ret_from_fork+0x24/0x30 [ 67.618900][ T12] Modules linked in: [ 67.623170][ T12] ---[ end trace 74e498d185f35eac ]--- [ 67.628655][ T12] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 67.634962][ T12] Code: 5f 0d bf fa 0f 0b e8 84 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 4c 0d bf fa 0f 0b e8 71 6c d5 fa 48 c7 c7 e0 76 5a 88 e8 39 0d bf fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 67.654574][ T12] RSP: 0018:ffff8880a98d7ce8 EFLAGS: 00010282 [ 67.660644][ T12] RAX: 0000000000000017 RBX: ffff88808ad376b8 RCX: 0000000000000000 [ 67.668637][ T12] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed101531af8f [ 67.676597][ T12] RBP: ffff8880a98d7d30 R08: 0000000000000017 R09: ffffed1015d060d1 [ 67.684686][ T12] R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: ffff88808ad36f48 [ 67.692680][ T12] R13: ffff888090030708 R14: ffff88808ad37680 R15: ffff88808799d040 [ 67.700787][ T12] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 67.709777][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.716351][ T12] CR2: 000000000049f2e0 CR3: 0000000008e6d000 CR4: 00000000001406f0 [ 67.724341][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.732333][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.740321][ T12] Kernel panic - not syncing: Fatal exception [ 67.747479][ T12] Kernel Offset: disabled [ 67.751799][ T12] Rebooting in 86400 seconds..