Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts.
syzkaller login: [  218.304373][   T35] audit: type=1400 audit(1613022601.548:8): avc:  denied  { execmem } for  pid=8447 comm="syz-executor228" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[  218.362584][ T8455] IPVS: ftp: loaded support on port[0] = 21
[  218.372156][ T8454] IPVS: ftp: loaded support on port[0] = 21
[  218.373069][ T8459] IPVS: ftp: loaded support on port[0] = 21
[  218.381434][ T8456] IPVS: ftp: loaded support on port[0] = 21
[  218.386838][ T8458] IPVS: ftp: loaded support on port[0] = 21
[  218.392630][ T8457] IPVS: ftp: loaded support on port[0] = 21
executing program
executing program
executing program
executing program
executing program
executing program
[  220.098615][  T204] ==================================================================
[  220.106975][  T204] BUG: KASAN: null-ptr-deref in tcf_idrinfo_destroy+0x129/0x1d0
[  220.114726][  T204] Read of size 4 at addr 0000000000000010 by task kworker/u4:5/204
[  220.123491][  T204] 
[  220.126637][  T204] CPU: 0 PID: 204 Comm: kworker/u4:5 Not tainted 5.11.0-rc7-syzkaller #0
[  220.135048][  T204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  220.145116][  T204] Workqueue: netns cleanup_net
[  220.150078][  T204] Call Trace:
[  220.153462][  T204]  dump_stack+0x107/0x163
[  220.157803][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.163107][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.168429][  T204]  kasan_report.cold+0x5f/0xd5
[  220.173214][  T204]  ? static_obj+0x30/0xc0
[  220.177565][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.182894][  T204]  check_memory_region+0x13d/0x180
[  220.188011][  T204]  tcf_idrinfo_destroy+0x129/0x1d0
[  220.193135][  T204]  ? find_dump_kind+0x220/0x220
[  220.198077][  T204]  police_exit_net+0x168/0x360
[  220.202854][  T204]  ? tcf_police_dump+0xbd0/0xbd0
[  220.207812][  T204]  ops_exit_list+0x10d/0x160
[  220.212403][  T204]  cleanup_net+0x4ea/0xb10
[  220.216821][  T204]  ? ops_free_list.part.0+0x3d0/0x3d0
[  220.222197][  T204]  process_one_work+0x98d/0x15f0
[  220.227164][  T204]  ? pwq_dec_nr_in_flight+0x320/0x320
[  220.232549][  T204]  ? rwlock_bug.part.0+0x90/0x90
[  220.237497][  T204]  ? _raw_spin_lock_irq+0x41/0x50
[  220.242558][  T204]  worker_thread+0x64c/0x1120
[  220.247276][  T204]  ? process_one_work+0x15f0/0x15f0
[  220.252532][  T204]  kthread+0x3b1/0x4a0
[  220.256642][  T204]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  220.262544][  T204]  ret_from_fork+0x1f/0x30
[  220.266997][  T204] ==================================================================
[  220.275076][  T204] Disabling lock debugging due to kernel taint
[  220.282267][  T204] Kernel panic - not syncing: panic_on_warn set ...
[  220.288964][  T204] CPU: 0 PID: 204 Comm: kworker/u4:5 Tainted: G    B             5.11.0-rc7-syzkaller #0
[  220.298793][  T204] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  220.308932][  T204] Workqueue: netns cleanup_net
[  220.313721][  T204] Call Trace:
[  220.317002][  T204]  dump_stack+0x107/0x163
[  220.321423][  T204]  ? tcf_idrinfo_destroy+0x100/0x1d0
[  220.326825][  T204]  panic+0x306/0x73d
[  220.330804][  T204]  ? __warn_printk+0xf3/0xf3
[  220.335566][  T204]  ? preempt_schedule_common+0x59/0xc0
[  220.341019][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.346516][  T204]  ? preempt_schedule_thunk+0x16/0x18
[  220.352118][  T204]  ? trace_hardirqs_on+0x38/0x1c0
[  220.357146][  T204]  ? trace_hardirqs_on+0x51/0x1c0
[  220.362174][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.367547][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.372870][  T204]  end_report+0x58/0x5e
[  220.377038][  T204]  kasan_report.cold+0x67/0xd5
[  220.381805][  T204]  ? static_obj+0x30/0xc0
[  220.386161][  T204]  ? tcf_idrinfo_destroy+0x129/0x1d0
[  220.391557][  T204]  check_memory_region+0x13d/0x180
[  220.396772][  T204]  tcf_idrinfo_destroy+0x129/0x1d0
[  220.401882][  T204]  ? find_dump_kind+0x220/0x220
[  220.406760][  T204]  police_exit_net+0x168/0x360
[  220.411542][  T204]  ? tcf_police_dump+0xbd0/0xbd0
[  220.416490][  T204]  ops_exit_list+0x10d/0x160
[  220.421192][  T204]  cleanup_net+0x4ea/0xb10
[  220.425621][  T204]  ? ops_free_list.part.0+0x3d0/0x3d0
[  220.430994][  T204]  process_one_work+0x98d/0x15f0
[  220.436425][  T204]  ? pwq_dec_nr_in_flight+0x320/0x320
[  220.442239][  T204]  ? rwlock_bug.part.0+0x90/0x90
[  220.447183][  T204]  ? _raw_spin_lock_irq+0x41/0x50
[  220.452302][  T204]  worker_thread+0x64c/0x1120
[  220.457173][  T204]  ? process_one_work+0x15f0/0x15f0
[  220.462440][  T204]  kthread+0x3b1/0x4a0
[  220.466528][  T204]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  220.472417][  T204]  ret_from_fork+0x1f/0x30
[  220.477463][  T204] Kernel Offset: disabled
[  220.481901][  T204] Rebooting in 86400 seconds..