[....] 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. [ 41.201591] audit: type=1800 audit(1570753863.742:33): pid=7419 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 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 44.846350] kauditd_printk_skb: 1 callbacks suppressed [ 44.846365] audit: type=1400 audit(1570753867.382:35): avc: denied { map } for pid=7591 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 '10.128.0.67' (ECDSA) to the list of known hosts. executing program [ 51.501375] audit: type=1400 audit(1570753874.042:36): avc: denied { map } for pid=7603 comm="syz-executor086" path="/root/syz-executor086018115" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 51.518924] IPVS: ftp: loaded support on port[0] = 21 [ 51.560106] rxrpc: Assertion failed [ 51.564294] ------------[ cut here ]------------ [ 51.569208] kernel BUG at net/rxrpc/local_object.c:437! [ 51.575003] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 51.580369] CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 4.19.78 #0 [ 51.586752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.596110] Workqueue: krxrpcd rxrpc_local_processor [ 51.601206] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 51.606983] Code: af f6 fc fa 0f 0b e8 04 90 12 fb 48 c7 c7 00 6a f1 87 e8 9c f6 fc fa 0f 0b e8 f1 8f 12 fb 48 c7 c7 00 6a f1 87 e8 89 f6 fc fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 51.625865] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282 [ 51.631212] RAX: 0000000000000017 RBX: ffff88808c743278 RCX: 0000000000000000 [ 51.638460] RDX: 0000000000000000 RSI: ffffffff8155f406 RDI: ffffed1015456f8f [ 51.645710] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079 [ 51.652962] R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff88808c742b08 [ 51.660214] R13: ffff888091828708 R14: ffff88808c743240 R15: ffff888096363680 [ 51.667466] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 51.675678] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.681537] CR2: 0000000000000000 CR3: 000000000866d000 CR4: 00000000001406e0 [ 51.688787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.696037] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.703291] Call Trace: [ 51.705909] process_one_work+0x989/0x1750 [ 51.710144] ? pwq_dec_nr_in_flight+0x320/0x320 [ 51.714800] ? lock_acquire+0x16f/0x3f0 [ 51.718764] ? kasan_check_write+0x14/0x20 [ 51.723038] ? do_raw_spin_lock+0xc8/0x240 [ 51.727311] worker_thread+0x98/0xe40 [ 51.731112] kthread+0x354/0x420 [ 51.734476] ? process_one_work+0x1750/0x1750 [ 51.738965] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 51.744491] ret_from_fork+0x24/0x30 [ 51.748212] Modules linked in: [ 51.751524] ---[ end trace 380b530e5762af29 ]--- [ 51.756303] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 51.761976] Code: af f6 fc fa 0f 0b e8 04 90 12 fb 48 c7 c7 00 6a f1 87 e8 9c f6 fc fa 0f 0b e8 f1 8f 12 fb 48 c7 c7 00 6a f1 87 e8 89 f6 fc fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 51.780999] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282 [ 51.786351] RAX: 0000000000000017 RBX: ffff88808c743278 RCX: 0000000000000000 [ 51.793643] RDX: 0000000000000000 RSI: ffffffff8155f406 RDI: ffffed1015456f8f [ 51.800941] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079 [ 51.808192] R10: ffffed1015d25078 R