Warning: Permanently added '10.128.0.71' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.759801] audit: type=1400 audit(1599283372.934:8): avc:  denied  { execmem } for  pid=6352 comm="syz-executor098" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   34.820754] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
[   34.833051] ==================================================================
[   34.840508] BUG: KASAN: use-after-free in padata_parallel_worker+0x2b0/0x2e0
[   34.847690] Write of size 8 at addr ffff88808c49c498 by task kworker/0:2/2582
[   34.854949] 
[   34.856572] CPU: 0 PID: 2582 Comm: kworker/0:2 Not tainted 4.14.196-syzkaller #0
[   34.864093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.873453] Workqueue: pencrypt padata_parallel_worker
[   34.878718] Call Trace:
[   34.881300]  dump_stack+0x1b2/0x283
[   34.885618]  print_address_description.cold+0x54/0x1d3
[   34.890890]  kasan_report_error.cold+0x8a/0x194
[   34.895644]  ? padata_parallel_worker+0x2b0/0x2e0
[   34.900482]  __asan_report_store8_noabort+0x68/0x70
[   34.905492]  ? padata_parallel_worker+0x2b0/0x2e0
[   34.910344]  padata_parallel_worker+0x2b0/0x2e0
[   34.915003]  ? lock_acquire+0x170/0x3f0
[   34.919002]  ? invoke_padata_reorder+0x40/0x40
[   34.923577]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   34.929017]  process_one_work+0x793/0x14a0
[   34.933266]  ? work_busy+0x320/0x320
[   34.936964]  ? worker_thread+0x158/0xff0
[   34.941031]  ? _raw_spin_unlock_irq+0x24/0x80
[   34.945515]  worker_thread+0x5cc/0xff0
[   34.949402]  ? rescuer_thread+0xc80/0xc80
[   34.953555]  kthread+0x30d/0x420
[   34.956909]  ? kthread_create_on_node+0xd0/0xd0
[   34.961567]  ret_from_fork+0x24/0x30
[   34.965286] 
[   34.966897] Allocated by task 6352:
[   34.970510]  kasan_kmalloc+0xeb/0x160
[   34.974306]  __kmalloc+0x15a/0x400
[   34.977832]  tls_push_record+0xfa/0x1270
[   34.981877]  tls_sw_sendmsg+0xbb0/0xfd0
[   34.985836]  inet_sendmsg+0x11a/0x4e0
[   34.989641]  sock_sendmsg+0xb5/0x100
[   34.993360]  SyS_sendto+0x1c7/0x2c0
[   34.996987]  do_syscall_64+0x1d5/0x640
[   35.000875]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   35.006049] 
[   35.007663] Freed by task 6352:
[   35.010929]  kasan_slab_free+0xc3/0x1a0
[   35.014887]  kfree+0xc9/0x250
[   35.017993]  tls_push_record+0xc3b/0x1270
[   35.022135]  tls_sw_sendmsg+0xbb0/0xfd0
[   35.026096]  inet_sendmsg+0x11a/0x4e0
[   35.029886]  sock_sendmsg+0xb5/0x100
[   35.033592]  SyS_sendto+0x1c7/0x2c0
[   35.037209]  do_syscall_64+0x1d5/0x640
[   35.041088]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   35.047129] 
[   35.048743] The buggy address belongs to the object at ffff88808c49c440
[   35.048743]  which belongs to the cache kmalloc-256 of size 256
[   35.061407] The buggy address is located 88 bytes inside of
[   35.061407]  256-byte region [ffff88808c49c440, ffff88808c49c540)
[   35.073455] The buggy address belongs to the page:
[   35.078387] page:ffffea0002312700 count:1 mapcount:0 mapping:ffff88808c49c080 index:0xffff88808c49c6c0
[   35.087830] flags: 0xfffe0000000100(slab)
[   35.091969] raw: 00fffe0000000100 ffff88808c49c080 ffff88808c49c6c0 0000000100000008
[   35.099839] raw: ffffea0002312ca0 ffffea00027ef520 ffff88812fe527c0 0000000000000000
[   35.107721] page dumped because: kasan: bad access detected
[   35.113411] 
[   35.115020] Memory state around the buggy address:
[   35.120036]  ffff88808c49c380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.127378]  ffff88808c49c400: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[   35.134722] >ffff88808c49c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.142075]                             ^
[   35.146206]  ffff88808c49c500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   35.153547]  ffff88808c49c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.161012] ==================================================================
[   35.168378] Disabling lock debugging due to kernel taint
[   35.174644] Kernel panic - not syncing: panic_on_warn set ...
[   35.174644] 
[   35.182012] CPU: 0 PID: 2582 Comm: kworker/0:2 Tainted: G    B           4.14.196-syzkaller #0
[   35.191525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   35.200888] Workqueue: pencrypt padata_parallel_worker
[   35.206153] Call Trace:
[   35.208748]  dump_stack+0x1b2/0x283
[   35.212362]  panic+0x1f9/0x42d
[   35.215549]  ? add_taint.cold+0x16/0x16
[   35.219518]  kasan_end_report+0x43/0x49
[   35.223481]  kasan_report_error.cold+0xa7/0x194
[   35.228142]  ? padata_parallel_worker+0x2b0/0x2e0
[   35.232974]  __asan_report_store8_noabort+0x68/0x70
[   35.237992]  ? padata_parallel_worker+0x2b0/0x2e0
[   35.242825]  padata_parallel_worker+0x2b0/0x2e0
[   35.247583]  ? lock_acquire+0x170/0x3f0
[   35.251556]  ? invoke_padata_reorder+0x40/0x40
[   35.256124]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   35.261577]  process_one_work+0x793/0x14a0
[   35.265802]  ? work_busy+0x320/0x320
[   35.269501]  ? worker_thread+0x158/0xff0
[   35.273566]  ? _raw_spin_unlock_irq+0x24/0x80
[   35.278071]  worker_thread+0x5cc/0xff0
[   35.281961]  ? rescuer_thread+0xc80/0xc80
[   35.286114]  kthread+0x30d/0x420
[   35.289474]  ? kthread_create_on_node+0xd0/0xd0
[   35.294142]  ret_from_fork+0x24/0x30
[   35.299068] Kernel Offset: disabled
[   35.302698] Rebooting in 86400 seconds..