[ 67.280766][ T26] audit: type=1800 audit(1564227386.537:27): pid=10049 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 67.315739][ T26] audit: type=1800 audit(1564227386.537:28): pid=10049 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 67.913588][ T26] audit: type=1800 audit(1564227387.267:29): pid=10049 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 67.933870][ T26] audit: type=1800 audit(1564227387.267:30): pid=10049 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 77.313847][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 82.310665][T10205] kasan: CONFIG_KASAN_INLINE enabled [ 82.316641][T10205] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 82.325113][T10205] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 82.332226][T10205] CPU: 1 PID: 10205 Comm: syz-executor265 Not tainted 5.3.0-rc1-next-20190726 #53 [ 82.341411][T10205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.351506][T10205] RIP: 0010:tls_trim_both_msgs+0x54/0x130 [ 82.357343][T10205] Code: 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 4d 8b b5 b0 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 82.377490][T10205] RSP: 0018:ffff88809037fac0 EFLAGS: 00010206 [ 82.383716][T10205] RAX: dffffc0000000000 RBX: ffff8880a8c0eec0 RCX: ffffffff862f4eef [ 82.391680][T10205] RDX: 0000000000000005 RSI: ffffffff862e9016 RDI: 0000000000000028 [ 82.399962][T10205] RBP: ffff88809037fae0 R08: ffff8880944a8040 R09: ffffed10125e7d51 [ 82.408148][T10205] R10: ffffed10125e7d50 R11: ffff888092f3ea83 R12: 0000000000000000 [ 82.416259][T10205] R13: ffff8880a9560c80 R14: 0000000000000000 R15: 00000000ffffffe0 [ 82.424509][T10205] FS: 000055555717a880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.433779][T10205] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.440416][T10205] CR2: 00007fc5f44109c0 CR3: 000000008b1cc000 CR4: 00000000001406e0 [ 82.448381][T10205] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.456344][T10205] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.464304][T10205] Call Trace: [ 82.467744][T10205] tls_sw_sendmsg+0xe38/0x17b0 [ 82.472591][T10205] ? rwlock_bug.part.0+0x90/0x90 [ 82.477666][T10205] ? tx_work_handler+0x180/0x180 [ 82.482597][T10205] ? lock_downgrade+0x920/0x920 [ 82.487600][T10205] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 82.493141][T10205] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 82.499661][T10205] inet6_sendmsg+0x9e/0xe0 [ 82.511029][T10205] ? inet6_ioctl+0x1c0/0x1c0 [ 82.515619][T10205] sock_sendmsg+0xd7/0x130 [ 82.520210][T10205] __sys_sendto+0x262/0x380 [ 82.524805][T10205] ? __ia32_sys_getpeername+0xb0/0xb0 [ 82.530177][T10205] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.536412][T10205] ? lock_downgrade+0x920/0x920 [ 82.541314][T10205] ? blkcg_maybe_throttle_current+0x5fe/0x1030 [ 82.547708][T10205] ? task_work_run+0x63/0x1c0 [ 82.552377][T10205] ? __blkcg_punt_bio_submit+0x1e0/0x1e0 [ 82.558061][T10205] ? unlock_page_memcg+0x40/0x40 [ 82.563118][T10205] ? _raw_spin_unlock_irq+0x5e/0x90 [ 82.568443][T10205] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.574810][T10205] ? do_syscall_64+0x65f/0x760 [ 82.579793][T10205] __x64_sys_sendto+0xe1/0x1a0 [ 82.584551][T10205] do_syscall_64+0xfa/0x760 [ 82.589220][T10205] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.595110][T10205] RIP: 0033:0x441339 [ 82.599378][T10205] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 82.619979][T10205] RSP: 002b:00007ffef90e4908 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 82.628970][T10205] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 82.636947][T10205] RDX: ffffffffffffffc1 RSI: 00000000200005c0 RDI: 0000000000000003 [ 82.645476][T10205] RBP: 00000000006cb018 R08: 0000000000000000 R09: 1201000000003618 [ 82.653955][T10205] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402160 [ 82.662354][T10205] R13: 00000000004021f0 R14: 0000000000000000 R15: 0000000000000000 [ 82.670526][T10205] Modules linked in: [ 82.675628][T10205] ---[ end trace 94e33101f438b014 ]--- [ 82.682149][T10205] RIP: 0010:tls_trim_both_msgs+0x54/0x130 [ 82.688364][T10205] Code: 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 4d 8b b5 b0 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b [ 82.709722][T10205] RSP: 0018:ffff88809037fac0 EFLAGS: 00010206 [ 82.716203][T10205] RAX: dffffc0000000000 RBX: ffff8880a8c0eec0 RCX: ffffffff862f4eef [ 82.724863][T10205] RDX: 0000000000000005 RSI: ffffffff862e9016 RDI: 0000000000000028 [ 82.733729][T10205] RBP: ffff88809037fae0 R08: ffff8880944a8040 R09: ffffed10125e7d51 [ 82.742047][T10205] R10: ffffed10125e7d50 R11: ffff888092f3ea83 R12: 0000000000000000 [ 82.750905][T10205] R13: ffff8880a9560c80 R14: 0000000000000000 R15: 00000000ffffffe0 [ 82.759236][T10205] FS: 000055555717a880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.768999][T10205] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.776377][T10205] CR2: 00007fc5f44109c0 CR3: 000000008b1cc000 CR4: 00000000001406e0 [ 82.784524][T10205] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.793048][T10205] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.801873][T10205] Kernel panic - not syncing: Fatal exception [ 82.809589][T10205] Kernel Offset: disabled [ 82.814360][T10205] Rebooting in 86400 seconds..