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-net-kasan-gce-8,10.128.0.22' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 27.607961] kasan: CONFIG_KASAN_INLINE enabled [ 27.608745] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.609921] general protection fault: 0000 [#1] SMP KASAN [ 27.610677] Dumping ftrace buffer: [ 27.611157] (ftrace buffer empty) [ 27.611653] Modules linked in: [ 27.612088] CPU: 0 PID: 3358 Comm: syzkaller649688 Not tainted 4.14.0+ #128 [ 27.613056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.614277] task: ffff8801cad54500 task.stack: ffff8801cda90000 [ 27.615081] RIP: 0010:blkcipher_walk_done+0x447/0xde0 [ 27.615766] RSP: 0018:ffff8801cda976f0 EFLAGS: 00010202 [ 27.616493] RAX: 0000000000000000 RBX: 00000000000003ef RCX: ffff8801cda977e0 [ 27.617445] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 27.618398] RBP: ffff8801cda97740 R08: ffffed0037aa1e02 R09: 0000000000000010 [ 27.619359] R10: 0000000000000000 R11: ffffed0037aa1e01 R12: ffff8801cda978b8 [ 27.620331] R13: ffff8801cda977a0 R14: ffff8801cda977e8 R15: ffff8801cace6d90 [ 27.621285] FS: 00007f081af79700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 27.622360] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.623152] CR2: 00007f081576de78 CR3: 00000001ce38e000 CR4: 00000000001406f0 [ 27.624146] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.625103] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.626074] Call Trace: [ 27.626466] skcipher_null_crypt+0x1da/0x2d0 [ 27.627071] ? null_compress+0x80/0x80 [ 27.627614] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 27.628354] ? null_compress+0x80/0x80 [ 27.632207] skcipher_encrypt_blkcipher+0x213/0x310 [ 27.637190] ? skcipher_encrypt_blkcipher+0x213/0x310 [ 27.642348] ? skcipher_setkey_blkcipher+0x170/0x170 [ 27.647417] ? af_alg_alloc_areq+0x1f2/0x2f0 [ 27.651792] aead_recvmsg+0x7db/0x1970 [ 27.655647] ? aead_recvmsg+0x67d/0x1970 [ 27.659674] ? release_sock+0x1d4/0x2a0 [ 27.663615] ? __local_bh_enable_ip+0x121/0x230 [ 27.668258] ? aead_sendpage_nokey+0xa0/0xa0 [ 27.672633] ? aead_check_key.isra.6+0x61/0x200 [ 27.677272] aead_recvmsg_nokey+0x60/0x80 [ 27.681386] ? aead_recvmsg+0x1970/0x1970 [ 27.685502] sock_recvmsg+0xc9/0x110 [ 27.689181] ? __sock_recv_wifi_status+0x210/0x210 [ 27.694077] ___sys_recvmsg+0x29b/0x630 [ 27.698023] ? ___sys_sendmsg+0x8a0/0x8a0 [ 27.702145] ? fget_raw+0x20/0x20 [ 27.705569] ? lock_release+0xda0/0xda0 [ 27.709511] ? lock_downgrade+0x980/0x980 [ 27.713624] ? do_raw_spin_trylock+0x190/0x190 [ 27.718177] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 27.723248] ? __fdget+0x18/0x20 [ 27.726582] __sys_recvmsg+0xe2/0x210 [ 27.730347] ? __sys_recvmsg+0xe2/0x210 [ 27.734287] ? SyS_sendmmsg+0x60/0x60 [ 27.738054] ? account_kernel_stack+0x155/0x1f0 [ 27.742692] ? lockdep_sys_exit+0x47/0xf0 [ 27.746809] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 27.751791] SyS_recvmsg+0x2d/0x50 [ 27.755299] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 27.760017] RIP: 0033:0x4463e9 [ 27.763174] RSP: 002b:00007f081af78dc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 27.770846] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004463e9 [ 27.778080] RDX: 0000000000002103 RSI: 0000000020709fc8 RDI: 0000000000000006 [ 27.785315] RBP: 0000000000000086 R08: 00007f081af79700 R09: 00007f081af79700 [ 27.792636] R10: 00007f081af79700 R11: 0000000000000202 R12: 0000000000000000 [ 27.799871] R13: 00007ffce933985f R14: 00007f081af799c0 R15: 0000000000000000 executing program executing program executing program [ 27.807114] Code: c8 48 89 f7 48 c1 ef 03 80 3c 17 00 0f 85 53 08 00 00 48 8d 78 08 48 ba 00 00 00 00 00 fc ff df 49 89 45 38 48 89 fe 48 c1 ee 03 <0f> b6 14 16 84 d2 74 09 80 fa 03 0f 8e 37 07 00 00 48 89 ca 44 [ 27.826181] RIP: blkcipher_walk_done+0x447/0xde0 RSP: ffff8801cda976f0 [ 27.832897] ---[ end trace 4988f7547f8ac03f ]--- [ 27.839465] Kernel panic - not syncing: Fatal exception [ 27.844837] Dumping ftrace buffer: [ 27.848341] (ftrace buffer empty) [ 27.852019] Kernel Offset: disabled [ 27.855613] Rebooting in 86400 seconds..