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-mmots-kasan-gce-0,10.128.0.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.725160] FAULT_INJECTION: forcing a failure. [ 27.725160] name failslab, interval 1, probability 0, space 0, times 1 [ 27.726740] CPU: 0 PID: 3083 Comm: syzkaller162535 Not tainted 4.15.0-rc1-mm1+ #29 [ 27.727749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.728969] Call Trace: [ 27.729329] dump_stack+0x194/0x257 [ 27.729820] ? arch_local_irq_restore+0x53/0x53 [ 27.730456] should_fail+0x8c0/0xa40 [ 27.730956] ? trace_hardirqs_on+0xd/0x10 [ 27.731529] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 27.732214] ? prepare_to_wait+0x4d0/0x4d0 [ 27.732779] ? lock_sock_nested+0x91/0x110 [ 27.733349] ? find_held_lock+0x39/0x1d0 [ 27.733941] ? __lock_is_held+0xbc/0x140 [ 27.734497] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 27.735276] ? __kmalloc+0x471/0x760 [ 27.735776] ? rcu_note_context_switch+0x710/0x710 [ 27.736442] should_failslab+0xec/0x120 [ 27.737012] __kmalloc+0x63/0x760 [ 27.737497] ? sock_kmalloc+0x112/0x190 [ 27.738035] sock_kmalloc+0x112/0x190 [ 27.738580] ? copy_overflow+0x30/0x30 [ 27.739100] ? lock_sock_nested+0x91/0x110 [ 27.739668] ? trace_hardirqs_on+0xd/0x10 [ 27.740222] ? af_alg_count_tsgl+0x1a8/0x210 [ 27.740818] skcipher_recvmsg+0x3f8/0xf20 [ 27.741386] ? skcipher_release+0x50/0x50 [ 27.741942] ? selinux_socket_recvmsg+0x36/0x40 [ 27.742565] ? security_socket_recvmsg+0x91/0xc0 [ 27.743198] ? skcipher_release+0x50/0x50 [ 27.743753] sock_recvmsg+0xc9/0x110 [ 27.744253] ? __sock_recv_wifi_status+0x210/0x210 [ 27.744921] ___sys_recvmsg+0x29b/0x630 [ 27.745464] ? ___sys_sendmsg+0x8a0/0x8a0 [ 27.749580] ? save_stack+0x43/0xd0 [ 27.753174] ? kasan_slab_free+0x71/0xc0 [ 27.757209] ? get_pid_task+0xbc/0x140 [ 27.761063] ? proc_fail_nth_write+0x9b/0x1d0 [ 27.765529] ? fget_raw+0x20/0x20 [ 27.768958] ? lock_downgrade+0x980/0x980 [ 27.773079] ? kernel_read+0x120/0x120 [ 27.776940] ? __fdget+0x18/0x20 [ 27.780283] __sys_recvmsg+0xe2/0x210 [ 27.784048] ? __sys_recvmsg+0xe2/0x210 [ 27.787989] ? SyS_sendmmsg+0x60/0x60 [ 27.791760] ? __sb_end_write+0x9e/0xd0 [ 27.795702] ? vfs_write+0x22a/0x510 [ 27.799393] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.804379] SyS_recvmsg+0x2d/0x50 [ 27.807887] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 27.812607] RIP: 0033:0x440589 [ 27.815761] RSP: 002b:00007ffdc7246618 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 27.823436] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000440589 [ 27.830677] RDX: 0000000000000000 RSI: 0000000020008000 RDI: 0000000000000004 [ 27.837915] RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000032 [ 27.845152] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401eb0 [ 27.852387] R13: 0000000000401f40 R14: 0000000000000000 R15: 0000000000000000 [ 27.859927] kasan: CONFIG_KASAN_INLINE enabled [ 27.864513] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.871883] general protection fault: 0000 [#1] SMP KASAN [ 27.877388] Dumping ftrace buffer: [ 27.880893] (ftrace buffer empty) [ 27.884566] Modules linked in: [ 27.887726] CPU: 0 PID: 3083 Comm: syzkaller162535 Not tainted 4.15.0-rc1-mm1+ #29 [ 27.895395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.904713] task: 00000000bd36cf8d task.stack: 00000000de516db5 [ 27.910738] RIP: 0010:af_alg_free_areq_sgls+0x5d1/0xab0 [ 27.916063] RSP: 0018:ffff8801cb0677d0 EFLAGS: 00010246 [ 27.921388] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff823a3a4a [ 27.928621] RDX: 0000000000000000 RSI: 1ffff100397ef29b RDI: 0000000000000000 [ 27.935862] RBP: ffff8801cb0679c8 R08: 1ffff1003960ce7e R09: 0000000000000000 [ 27.943098] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 27.950330] R13: 0000000000000000 R14: ffff8801cbf794c0 R15: ffffed003960cf2c [ 27.957565] FS: 0000000000ad7880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 27.965752] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.971597] CR2: 0000000020001000 CR3: 00000001ce0bc000 CR4: 00000000001406f0 [ 27.978832] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.986066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.993303] Call Trace: [ 27.995866] ? af_alg_unregister_type+0x3d0/0x3d0 [ 28.000685] ? rcu_read_lock_sched_held+0x108/0x120 [ 28.005669] ? __kmalloc+0x471/0x760 [ 28.009349] ? sock_kmalloc+0x112/0x190 [ 28.013288] ? sock_kmalloc+0x11f/0x190 [ 28.017233] ? copy_overflow+0x30/0x30 [ 28.021085] ? lock_sock_nested+0x91/0x110 [ 28.025285] ? trace_hardirqs_on+0xd/0x10 [ 28.029397] ? af_alg_count_tsgl+0x1a8/0x210 [ 28.033769] af_alg_free_resources+0x36/0x80 [ 28.038143] skcipher_recvmsg+0x8e5/0xf20 [ 28.042259] ? skcipher_release+0x50/0x50 [ 28.046372] ? selinux_socket_recvmsg+0x36/0x40 [ 28.051006] ? security_socket_recvmsg+0x91/0xc0 [ 28.055724] ? skcipher_release+0x50/0x50 [ 28.059835] sock_recvmsg+0xc9/0x110 [ 28.063512] ? __sock_recv_wifi_status+0x210/0x210 [ 28.068406] ___sys_recvmsg+0x29b/0x630 [ 28.072348] ? ___sys_sendmsg+0x8a0/0x8a0 [ 28.076461] ? save_stack+0x43/0xd0 [ 28.080048] ? kasan_slab_free+0x71/0xc0 [ 28.084078] ? get_pid_task+0xbc/0x140 [ 28.087931] ? proc_fail_nth_write+0x9b/0x1d0 [ 28.092399] ? fget_raw+0x20/0x20 [ 28.095823] ? lock_downgrade+0x980/0x980 [ 28.099936] ? kernel_read+0x120/0x120 [ 28.103790] ? __fdget+0x18/0x20 [ 28.107123] __sys_recvmsg+0xe2/0x210 [ 28.110886] ? __sys_recvmsg+0xe2/0x210 [ 28.114825] ? SyS_sendmmsg+0x60/0x60 [ 28.118591] ? __sb_end_write+0x9e/0xd0 [ 28.122528] ? vfs_write+0x22a/0x510 [ 28.126214] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 28.131197] SyS_recvmsg+0x2d/0x50 [ 28.134705] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 28.139422] RIP: 0033:0x440589 [ 28.142576] RSP: 002b:00007ffdc7246618 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 28.150249] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000440589 [ 28.157486] RDX: 0000000000000000 RSI: 0000000020008000 RDI: 0000000000000004 [ 28.164724] RBP: 0000000000000005 R08: 0000000000000001 R09: 0000000000000032 [ 28.171958] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401eb0 [ 28.179191] R13: 0000000000401f40 R14: 0000000000000000 R15: 0000000000000000 [ 28.186448] Code: 00 00 48 8d 45 98 48 bb 00 00 00 00 00 fc ff df 48 89 85 48 fe ff ff 48 c1 e8 03 4c 8d 3c 18 e8 66 01 36 ff 4c 89 e0 48 c1 e8 03 <80> 3c 18 00 0f 85 4b 03 00 00 49 8b 04 24 48 83 e0 fc 48 89 85 [ 28.205509] RIP: af_alg_free_areq_sgls+0x5d1/0xab0 RSP: ffff8801cb0677d0 [ 28.212365] ---[ end trace ad09445ac87d9e14 ]--- [ 28.217132] Kernel panic - not syncing: Fatal exception [ 28.222519] Dumping ftrace buffer: [ 28.226376] (ftrace buffer empty) [ 28.230053] Kernel Offset: disabled [ 28.233646] Rebooting in 86400 seconds..