[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.732522] audit: type=1800 audit(1572449179.939:33): pid=7304 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 37.754832] audit: type=1800 audit(1572449179.939:34): pid=7304 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.337373] audit: type=1400 audit(1572449183.539:35): avc: denied { map } for pid=7477 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts. executing program [ 47.830358] audit: type=1400 audit(1572449190.039:36): avc: denied { map } for pid=7489 comm="syz-executor847" path="/root/syz-executor847779684" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 47.846053] IPVS: ftp: loaded support on port[0] = 21 [ 47.889817] rxrpc: Assertion failed [ 47.893790] ------------[ cut here ]------------ [ 47.898530] kernel BUG at net/rxrpc/local_object.c:437! [ 47.905756] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 47.911130] CPU: 0 PID: 2704 Comm: kworker/0:2 Not tainted 4.19.81 #0 [ 47.917716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.927169] Workqueue: krxrpcd rxrpc_local_processor [ 47.932276] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 47.937886] Code: cf 30 ff fa 0f 0b e8 74 cb 14 fb 48 c7 c7 00 24 f1 87 e8 bc 30 ff fa 0f 0b e8 61 cb 14 fb 48 c7 c7 00 24 f1 87 e8 a9 30 ff fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 47.956773] RSP: 0018:ffff88809f61fce8 EFLAGS: 00010282 [ 47.962121] RAX: 0000000000000017 RBX: ffff8880a83976f8 RCX: 0000000000000000 [ 47.969375] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1013ec3f8f [ 47.976629] RBP: ffff88809f61fd30 R08: 0000000000000017 R09: ffffed1015d05079 [ 47.983968] R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: ffff8880a8396f88 [ 47.991218] R13: ffff8880988386c8 R14: ffff8880a83976c0 R15: ffff888094975180 [ 47.998483] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 48.006706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.012568] CR2: 000000000049f2e0 CR3: 000000000866d000 CR4: 00000000001406f0 [ 48.019820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.027067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.034358] Call Trace: [ 48.036937] process_one_work+0x989/0x1750 [ 48.041156] ? pwq_dec_nr_in_flight+0x320/0x320 [ 48.045844] ? lock_acquire+0x16f/0x3f0 [ 48.049832] ? kasan_check_write+0x14/0x20 [ 48.054082] ? do_raw_spin_lock+0xc8/0x240 [ 48.058327] worker_thread+0x98/0xe40 [ 48.062121] ? trace_hardirqs_on+0x67/0x220 [ 48.066443] kthread+0x354/0x420 [ 48.069796] ? process_one_work+0x1750/0x1750 [ 48.074276] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 48.079811] ret_from_fork+0x24/0x30 [ 48.083507] Modules linked in: [ 48.087089] ---[ end trace b3a0a3afdc8dfb4f ]--- [ 48.091914] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 48.097619] Code: cf 30 ff fa 0f 0b e8 74 cb 14 fb 48 c7 c7 00 24 f1 87 e8 bc 30 ff fa 0f 0b e8 61 cb 14 fb 48 c7 c7 00 24 f1 87 e8 a9 30 ff fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 48.116711] RSP: 0018:ffff88809f61fce8 EFLAGS: 00010282 [ 48.122280] RAX: 0000000000000017 RBX: ffff8880a83976f8 RCX: 0000000000000000 [ 48.129604] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1013ec3f8f [ 48.136877] RBP: ffff88809f61fd30 R08: 0000000