INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-kasan-gce-5,10.128.0.14' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz7.accept_dad = 0
net.ipv6.conf.syz6.accept_dad = 0
net.ipv6.conf.syz5.accept_dad = 0
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz3.accept_dad = 0
net.ipv6.conf.syz1.accept_dad = 0
net.ipv6.conf.syz4.accept_dad = 0
net.ipv6.conf.syz5.router_solicitations = 0
net.ipv6.conf.syz2.accept_dad = 0
net.ipv6.conf.syz0.router_solicitations = 0
net.ipv6.conf.syz7.router_solicitations = 0
net.ipv6.conf.syz6.router_solicitations = 0
net.ipv6.conf.syz1.router_solicitations = 0
net.ipv6.conf.syz3.router_solicitations = 0
net.ipv6.conf.syz4.router_solicitations = 0
net.ipv6.conf.syz2.router_solicitations = 0
executing program
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syzkaller login: [   53.729230] ==================================================================
[   53.730288] BUG: KASAN: use-after-free in aead_recvmsg+0x1758/0x1bc0
[   53.731212] Read of size 4 at addr ffff8801c67ef55c by task syzkaller324552/3413
[   53.732198] 
[   53.732430] CPU: 1 PID: 3413 Comm: syzkaller324552 Not tainted 4.15.0-rc2+ #209
[   53.733420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.734643] Call Trace:
[   53.735009]  dump_stack+0x194/0x257
[   53.735500]  ? arch_local_irq_restore+0x53/0x53
[   53.736151]  ? show_regs_print_info+0x18/0x18
[   53.736754]  ? af_alg_make_sg+0x510/0x510
[   53.737309]  ? aead_recvmsg+0x1758/0x1bc0
[   53.738042]  print_address_description+0x73/0x250
[   53.738686]  ? aead_recvmsg+0x1758/0x1bc0
[   53.739241]  kasan_report+0x25b/0x340
[   53.739755]  __asan_report_load4_noabort+0x14/0x20
[   53.740408]  aead_recvmsg+0x1758/0x1bc0
[   53.740960]  ? aead_release+0x50/0x50
[   53.741475]  ? selinux_socket_recvmsg+0x36/0x40
[   53.742096]  ? security_socket_recvmsg+0x91/0xc0
[   53.742731]  ? aead_release+0x50/0x50
[   53.743244]  sock_recvmsg+0xc9/0x110
[   53.743760]  ? __sock_recv_wifi_status+0x210/0x210
[   53.744417]  ___sys_recvmsg+0x29b/0x630
[   53.744960]  ? ___sys_sendmsg+0x8a0/0x8a0
[   53.745530]  ? fget_raw+0x20/0x20
[   53.746000]  ? __handle_mm_fault+0x3e20/0x3e20
[   53.746623]  ? vmacache_find+0x5f/0x280
[   53.747166]  ? up_read+0x1a/0x40
[   53.747621]  ? __do_page_fault+0x3d6/0xc90
[   53.748194]  ? __fdget+0x18/0x20
[   53.748675]  __sys_recvmsg+0xe2/0x210
[   53.749183]  ? __sys_recvmsg+0xe2/0x210
[   53.752099]  ? SyS_sendmmsg+0x60/0x60
[   53.755877]  ? __do_page_fault+0xc90/0xc90
[   53.760091]  ? lockdep_sys_exit+0x47/0xf0
[   53.764219]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   53.769208]  SyS_recvmsg+0x2d/0x50
[   53.772720]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   53.777442] RIP: 0033:0x44a669
[   53.780598] RSP: 002b:00007fa198be3dc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[   53.788273] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a669
[   53.795510] RDX: 0000000000000040 RSI: 00000000206b0fc8 RDI: 0000000000000005
[   53.802746] RBP: 0000000000000000 R08: 00007fa198be4700 R09: 00007fa198be4700
[   53.810069] R10: 00007fa198be4700 R11: 0000000000000202 R12: 0000000000000000
[   53.817306] R13: 00007ffe1eb7d09f R14: 00007fa198be49c0 R15: 0000000000000000
[   53.824564] 
[   53.826159] Allocated by task 3293:
[   53.829758]  save_stack+0x43/0xd0
[   53.833175]  kasan_kmalloc+0xad/0xe0
[   53.836856]  __kmalloc+0x162/0x760
[   53.840363]  crypto_create_tfm+0x82/0x2e0
[   53.844478]  crypto_alloc_tfm+0x10e/0x2f0
[   53.848592]  crypto_alloc_skcipher+0x2c/0x40
[   53.852970]  crypto_get_default_null_skcipher+0x5f/0x80
[   53.858298]  aead_bind+0x89/0x140
[   53.861714]  alg_bind+0x1ab/0x440
[   53.865132]  SYSC_bind+0x1b4/0x3f0
[   53.868638]  SyS_bind+0x24/0x30
[   53.871885]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   53.876602] 
[   53.878196] Freed by task 3297:
[   53.881439]  save_stack+0x43/0xd0
[   53.884857]  kasan_slab_free+0x71/0xc0
[   53.888725]  kfree+0xca/0x250
[   53.891797]  kzfree+0x28/0x30
[   53.894867]  crypto_destroy_tfm+0x140/0x2e0
[   53.899152]  crypto_put_default_null_skcipher+0x35/0x60
[   53.904479]  aead_sock_destruct+0x13c/0x220
[   53.908766]  __sk_destruct+0xfd/0x910
[   53.912532]  sk_destruct+0x47/0x80
[   53.916036]  __sk_free+0x57/0x230
[   53.919455]  sk_free+0x2a/0x40
[   53.922612]  af_alg_release+0x5d/0x70
[   53.926382]  sock_release+0x8d/0x1e0
[   53.930062]  sock_close+0x16/0x20
[   53.933483]  __fput+0x333/0x7f0
[   53.936730]  ____fput+0x15/0x20
[   53.939976]  task_work_run+0x199/0x270
[   53.943828]  do_exit+0x9bb/0x1ae0
[   53.947245]  do_group_exit+0x149/0x400
[   53.951098]  SyS_exit_group+0x1d/0x20
[   53.954861]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   53.959581] 
[   53.961174] The buggy address belongs to the object at ffff8801c67ef540
[   53.961174]  which belongs to the cache kmalloc-128 of size 128
[   53.973793] The buggy address is located 28 bytes inside of
[   53.973793]  128-byte region [ffff8801c67ef540, ffff8801c67ef5c0)
[   53.985547] The buggy address belongs to the page:
[   53.990445] page:00000000b37f70ec count:1 mapcount:0 mapping:00000000fd21d6d8 index:0x0
[   53.998555] flags: 0x2fffc0000000100(slab)
[   54.002758] raw: 02fffc0000000100 ffff8801c67ef000 0000000000000000 0000000100000015
[   54.010608] raw: ffffea00071a70a0 ffffea0007184060 ffff8801db000640 0000000000000000
[   54.018462] page dumped because: kasan: bad access detected
[   54.024140] 
[   54.025737] Memory state around the buggy address:
[   54.030632]  ffff8801c67ef400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   54.037955]  ffff8801c67ef480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   54.045278] >ffff8801c67ef500: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[   54.052599]                                                     ^
[   54.058794]  ffff8801c67ef580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   54.066116]  ffff8801c67ef600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   54.073438] ==================================================================
[   54.080760] Disabling lock debugging due to kernel taint
[   54.086402] Kernel panic - not syncing: panic_on_warn set ...
[   54.086402] 
[   54.093737] CPU: 1 PID: 3413 Comm: syzkaller324552 Tainted: G    B            4.15.0-rc2+ #209
[   54.102449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.111768] Call Trace:
[   54.114325]  dump_stack+0x194/0x257
[   54.117920]  ? arch_local_irq_restore+0x53/0x53
[   54.122557]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   54.127277]  ? vsnprintf+0x1ed/0x1900
[   54.131045]  ? aead_recvmsg+0x1720/0x1bc0
[   54.135159]  panic+0x1e4/0x41c
[   54.138316]  ? refcount_error_report+0x214/0x214
[   54.143044]  ? add_taint+0x1c/0x50
[   54.146548]  ? add_taint+0x1c/0x50
[   54.150053]  ? aead_recvmsg+0x1758/0x1bc0
[   54.154167]  kasan_end_report+0x50/0x50
[   54.158111]  kasan_report+0x144/0x340
[   54.161876]  __asan_report_load4_noabort+0x14/0x20
[   54.166774]  aead_recvmsg+0x1758/0x1bc0
[   54.170724]  ? aead_release+0x50/0x50
[   54.174490]  ? selinux_socket_recvmsg+0x36/0x40
[   54.179124]  ? security_socket_recvmsg+0x91/0xc0
[   54.183844]  ? aead_release+0x50/0x50
[   54.187612]  sock_recvmsg+0xc9/0x110
[   54.191290]  ? __sock_recv_wifi_status+0x210/0x210
[   54.196183]  ___sys_recvmsg+0x29b/0x630
[   54.200126]  ? ___sys_sendmsg+0x8a0/0x8a0
[   54.204253]  ? fget_raw+0x20/0x20
[   54.207673]  ? __handle_mm_fault+0x3e20/0x3e20
[   54.212218]  ? vmacache_find+0x5f/0x280
[   54.216167]  ? up_read+0x1a/0x40
[   54.219513]  ? __do_page_fault+0x3d6/0xc90
[   54.223715]  ? __fdget+0x18/0x20
[   54.227050]  __sys_recvmsg+0xe2/0x210
[   54.230815]  ? __sys_recvmsg+0xe2/0x210
[   54.234753]  ? SyS_sendmmsg+0x60/0x60
[   54.238521]  ? __do_page_fault+0xc90/0xc90
[   54.242725]  ? lockdep_sys_exit+0x47/0xf0
[   54.246843]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   54.251826]  SyS_recvmsg+0x2d/0x50
[   54.255334]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   54.260054] RIP: 0033:0x44a669
[   54.263207] RSP: 002b:00007fa198be3dc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002f
[   54.270879] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a669
[   54.278112] RDX: 0000000000000040 RSI: 00000000206b0fc8 RDI: 0000000000000005
[   54.285348] RBP: 0000000000000000 R08: 00007fa198be4700 R09: 00007fa198be4700
[   54.292583] R10: 00007fa198be4700 R11: 0000000000000202 R12: 0000000000000000
[   54.299817] R13: 00007ffe1eb7d09f R14: 00007fa198be49c0 R15: 0000000000000000
[   54.307088] Dumping ftrace buffer:
[   54.310594]    (ftrace buffer empty)
[   54.314272] Kernel Offset: disabled
[   54.317866] Rebooting in 86400 seconds..