[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.453230] audit: type=1400 audit(1599764025.736:8): avc: denied { execmem } for pid=6357 comm="syz-executor749" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 32.475526] IPVS: ftp: loaded support on port[0] = 21 executing program [ 32.512043] IPVS: ftp: loaded support on port[0] = 21 [ 33.386450] rxrpc: AF_RXRPC: Leaked local ffff8880a8bc64c0 {1} [ 33.392764] ------------[ cut here ]------------ [ 33.397542] kernel BUG at net/rxrpc/local_object.c:408! [ 33.403812] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 33.409174] Modules linked in: [ 33.412339] CPU: 1 PID: 6094 Comm: kworker/u4:6 Not tainted 4.14.197-syzkaller #0 [ 33.419969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.429299] Workqueue: netns cleanup_net [ 33.433327] task: ffff888091a3a080 task.stack: ffff88808a2c0000 [ 33.439377] RIP: 0010:rxrpc_destroy_all_locals+0xe6/0xf2 [ 33.444889] RSP: 0018:ffff88808a2c7c28 EFLAGS: 00010286 [ 33.450224] RAX: dffffc0000000000 RBX: ffff888095f98700 RCX: fffffbfff14b5180 [ 33.457498] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000286 [ 33.464826] RBP: ffff888095f98720 R08: ffff888091a3a080 R09: dffffc0000000000 [ 33.472202] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888095f98720 [ 33.479537] R13: ffff888095f98730 R14: dffffc0000000000 R15: fffffbfff10fea3f [ 33.486785] FS: 0000000000000000(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 33.495080] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.500937] CR2: 00007fb092d10000 CR3: 00000000947c6000 CR4: 00000000001406e0 [ 33.508182] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.515423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.522700] Call Trace: [ 33.525302] rxrpc_exit_net+0x158/0x260 [ 33.529248] ? rxrpc_destroy_all_locals.cold+0x65/0x65 [ 33.534497] ops_exit_list+0xa5/0x150 [ 33.538269] cleanup_net+0x3b3/0x840 [ 33.541949] ? net_drop_ns+0x70/0x70 [ 33.545666] ? lock_acquire+0x170/0x3f0 [ 33.549611] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 33.555033] process_one_work+0x793/0x14a0 [ 33.559243] ? work_busy+0x320/0x320 [ 33.562924] ? worker_thread+0x158/0xff0 [ 33.566955] ? _raw_spin_unlock_irq+0x24/0x80 [ 33.571416] worker_thread+0x5cc/0xff0 [ 33.575273] ? rescuer_thread+0xc80/0xc80 [ 33.579391] kthread+0x30d/0x420 [ 33.582743] ? kthread_create_on_node+0xd0/0xd0 [ 33.587481] ret_from_fork+0x24/0x30 [ 33.591180] Code: 00 00 00 00 00 fc ff df 48 83 eb 20 e8 24 fd 8a fb 4c 8d 63 20 4c 39 e5 0f 85 52 00 00 00 e8 12 fd 8a fb 4c 89 ef e8 4a 23 84 00 <0f> 0b 48 89 ef e8 40 d0 b4 fb eb c0 e8 f9 fc 8a fb 48 c7 c7 60 [ 33.610366] RIP: rxrpc_destroy_all_locals+0xe6/0xf2 RSP: ffff88808a2c7c28 [ 33.623586] ---[ end trace 22f6b18eea151b08 ]--- [ 33.628375] Kernel panic - not syncing: Fatal exception [ 33.634894] Kernel Offset: disabled [ 33.638526] Rebooting in 86400 seconds..