[ 40.993065] audit: type=1800 audit(1572059007.434:31): pid=7559 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 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: [ 46.990234] kauditd_printk_skb: 3 callbacks suppressed [ 46.990248] audit: type=1400 audit(1572059013.494:35): avc: denied { map } for pid=7734 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 '10.128.1.50' (ECDSA) to the list of known hosts. executing program [ 53.567088] audit: type=1400 audit(1572059020.064:36): avc: denied { map } for pid=7746 comm="syz-executor139" path="/root/syz-executor139706875" 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 [ 53.586964] IPVS: ftp: loaded support on port[0] = 21 [ 53.622770] rxrpc: Assertion failed [ 53.626808] ------------[ cut here ]------------ [ 53.631584] kernel BUG at net/rxrpc/local_object.c:437! [ 53.637147] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 53.642521] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.19.80 #0 [ 53.648910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.658259] Workqueue: krxrpcd rxrpc_local_processor [ 53.663370] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 53.668995] 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 [ 53.687926] RSP: 0018:ffff8880aa26fce8 EFLAGS: 00010282 [ 53.693283] RAX: 0000000000000017 RBX: ffff8880918e4978 RCX: 0000000000000000 [ 53.700537] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed101544df8f [ 53.707789] RBP: ffff8880aa26fd30 R08: 0000000000000017 R09: ffffed1015d05079 [ 53.715040] R10: ffffed1015d05078 R11: ffff8880ae8283c7 R12: ffff8880918e4208 [ 53.722292] R13: ffff8880a8aa07c8 R14: ffff8880918e4940 R15: ffff888079dcbb00 [ 53.729557] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 53.737764] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.743630] CR2: 00000000006cb090 CR3: 000000000866d000 CR4: 00000000001406f0 [ 53.750888] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.758141] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.765528] Call Trace: [ 53.768134] process_one_work+0x989/0x1750 [ 53.772410] ? pwq_dec_nr_in_flight+0x320/0x320 [ 53.777064] ? lock_acquire+0x16f/0x3f0 [ 53.781025] ? kasan_check_write+0x14/0x20 [ 53.785293] ? do_raw_spin_lock+0xc8/0x240 [ 53.789517] worker_thread+0x98/0xe40 [ 53.793519] ? trace_hardirqs_on+0x67/0x220 [ 53.797832] kthread+0x354/0x420 [ 53.801184] ? process_one_work+0x1750/0x1750 [ 53.805661] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 53.812588] ret_from_fork+0x24/0x30 [ 53.816293] Modules linked in: [ 53.819835] ---[ end trace f9c0637cc8d7224a ]--- [ 53.824611] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 [ 53.830269] 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 [ 53.849305] RSP: 0018:ffff8880aa26fce8 EFLAGS: 00010282 [ 53.854659] RAX: 0000000000000017 RBX: ffff8880918e4978 RCX: 0000000000000000 [ 53.862407] RDX: 0000000000000000 RSI: ffffffff81553f06 RDI: ffffed101544df8f [ 53.869701] RBP: ffff8880aa26fd30 R08: 00000000