[ 41.111423] audit: type=1800 audit(1571861793.036:30): pid=7588 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [....] 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 45.616448] kauditd_printk_skb: 4 callbacks suppressed [ 45.616463] audit: type=1400 audit(1571861797.556:35): avc: denied { map } for pid=7765 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 '10.128.15.227' (ECDSA) to the list of known hosts. executing program [ 52.340718] audit: type=1400 audit(1571861804.286:36): avc: denied { map } for pid=7777 comm="syz-executor492" path="/root/syz-executor492980136" 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 [ 52.357525] IPVS: ftp: loaded support on port[0] = 21 [ 52.395759] rxrpc: Assertion failed [ 52.400224] ------------[ cut here ]------------ [ 52.404989] kernel BUG at net/rxrpc/local_object.c:437! [ 52.410687] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 52.416044] CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 4.19.80 #0 [ 52.422432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.431801] Workqueue: krxrpcd rxrpc_local_processor [ 52.436895] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 52.442503] 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 [ 52.461387] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282 [ 52.466743] RAX: 0000000000000017 RBX: ffff888095c2cdf8 RCX: 0000000000000000 [ 52.474251] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1015456f8f [ 52.481502] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079 [ 52.488750] R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff888095c2c688 [ 52.496000] R13: ffff88809be60688 R14: ffff888095c2cdc0 R15: ffff8880949f94c0 [ 52.503259] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 52.511472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.517343] CR2: 0000000020000080 CR3: 000000009e06f000 CR4: 00000000001406e0 [ 52.524595] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.531852] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.539101] Call Trace: [ 52.541688] process_one_work+0x989/0x1750 [ 52.545912] ? pwq_dec_nr_in_flight+0x320/0x320 [ 52.550572] ? lock_acquire+0x16f/0x3f0 [ 52.554526] ? kasan_check_write+0x14/0x20 [ 52.558739] ? do_raw_spin_lock+0xc8/0x240 [ 52.562965] worker_thread+0x98/0xe40 [ 52.566751] kthread+0x354/0x420 [ 52.570098] ? process_one_work+0x1750/0x1750 [ 52.574582] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 52.580110] ret_from_fork+0x24/0x30 [ 52.583803] Modules linked in: [ 52.587325] ---[ end trace bc79b8166ec7ddef ]--- [ 52.592132] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 52.597744] 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 [ 52.616668] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282 [ 52.622063] RAX: 0000000000000017 RBX: ffff888095c2cdf8 RCX: 0000000000000000 [ 52.629374] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed1015456f8f [ 52.636649] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079 [ 52.643963] R10: ffffed1015d25078