Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining dae[ 36.207113] audit: type=1800 audit(1571699600.022:33): pid=7262 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 mon: restorecond[ 36.228987] audit: type=1800 audit(1571699600.022:34): pid=7262 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 [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 42.077479] audit: type=1400 audit(1571699605.892:35): avc: denied { map } for pid=7437 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 '10.128.15.220' (ECDSA) to the list of known hosts. executing program [ 56.642702] audit: type=1400 audit(1571699620.462:36): avc: denied { map } for pid=7449 comm="syz-executor592" path="/root/syz-executor592589739" 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 [ 56.658623] IPVS: ftp: loaded support on port[0] = 21 [ 56.697402] rxrpc: Assertion failed [ 56.701827] ------------[ cut here ]------------ [ 56.706648] kernel BUG at net/rxrpc/local_object.c:437! [ 56.712414] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 56.717814] CPU: 0 PID: 2534 Comm: kworker/0:2 Not tainted 4.19.80 #0 [ 56.724377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.733768] Workqueue: krxrpcd rxrpc_local_processor [ 56.738901] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 56.744507] Code: df 31 ff fa 0f 0b e8 84 cc 14 fb 48 c7 c7 40 23 f1 87 e8 cc 31 ff fa 0f 0b e8 71 cc 14 fb 48 c7 c7 40 23 f1 87 e8 b9 31 ff fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 56.763390] RSP: 0018:ffff8880a09efce8 EFLAGS: 00010282 [ 56.768734] RAX: 0000000000000017 RBX: ffff8880a9691278 RCX: 0000000000000000 [ 56.775996] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed101413df8f [ 56.783254] RBP: ffff8880a09efd30 R08: 0000000000000017 R09: ffffed1015d05079 [ 56.790525] R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: ffff8880a9690b08 [ 56.797790] R13: ffff888081e606c8 R14: ffff8880a9691240 R15: ffff888098397a00 [ 56.805059] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 56.813267] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.819127] CR2: 0000000020000080 CR3: 00000000a88fd000 CR4: 00000000001406f0 [ 56.826416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.833668] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.840966] Call Trace: [ 56.843546] process_one_work+0x989/0x1750 [ 56.847801] ? pwq_dec_nr_in_flight+0x320/0x320 [ 56.852452] ? lock_acquire+0x16f/0x3f0 [ 56.856414] ? kasan_check_write+0x14/0x20 [ 56.860632] ? do_raw_spin_lock+0xc8/0x240 [ 56.864851] worker_thread+0x98/0xe40 [ 56.868634] ? trace_hardirqs_on+0x67/0x220 [ 56.872939] kthread+0x354/0x420 [ 56.876287] ? process_one_work+0x1750/0x1750 [ 56.880765] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 56.886300] ret_from_fork+0x24/0x30 [ 56.890051] Modules linked in: [ 56.893444] ---[ end trace f219bf1cac304201 ]--- [ 56.898319] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 56.903964] Code: df 31 ff fa 0f 0b e8 84 cc 14 fb 48 c7 c7 40 23 f1 87 e8 cc 31 ff fa 0f 0b e8 71 cc 14 fb 48 c7 c7 40 23 f1 87 e8 b9 31 ff fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 [ 56.922900] RSP: 0018:ffff8880a09efce8 EFLAGS: 00010282 [ 56.928256] RAX: 0000000000000017 RBX: ffff8880a9691278 RCX: 0000000000000000 [ 56.935560] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed101413df8f [ 56.942882] RBP: ffff8880a09efd30 R08: 0000000000000017 R09: fff