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-2,10.128.0.55' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 executing program executing program executing program executing program executing program executing program syzkaller login: [ 29.362297] kasan: CONFIG_KASAN_INLINE enabled [ 29.363231] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.364624] general protection fault: 0000 [#1] SMP KASAN [ 29.365401] Dumping ftrace buffer: [ 29.365880] (ftrace buffer empty) [ 29.366397] Modules linked in: [ 29.366834] CPU: 1 PID: 6063 Comm: syzkaller061337 Not tainted 4.14.0+ #192 [ 29.367767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.368989] task: ffff8801c15620c0 task.stack: ffff8801c17d0000 [ 29.369812] RIP: 0010:blkcipher_walk_done+0x447/0xde0 [ 29.370500] RSP: 0018:ffff8801c17d76f0 EFLAGS: 00010202 [ 29.371230] RAX: 0000000000000000 RBX: 00000000000003ef RCX: ffff8801c17d77e0 [ 29.372185] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 29.373140] RBP: ffff8801c17d7740 R08: ffffed0037561e02 R09: 0000000000000010 [ 29.374093] R10: 0000000000000000 R11: ffffed0037561e01 R12: ffff8801c17d78b8 [ 29.375045] R13: ffff8801c17d77a0 R14: ffff8801c17d77e8 R15: ffff8801c1799550 [ 29.376019] FS: 00007fce4c8e2700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 29.377098] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.377873] CR2: 0000000020c13000 CR3: 00000001c148a000 CR4: 00000000001406e0 [ 29.378828] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.379782] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.380734] Call Trace: [ 29.381098] skcipher_null_crypt+0x1da/0x2d0 [ 29.381707] ? null_compress+0x80/0x80 [ 29.382229] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 29.382974] ? null_compress+0x80/0x80 [ 29.386830] skcipher_encrypt_blkcipher+0x213/0x310 [ 29.391809] ? skcipher_encrypt_blkcipher+0x213/0x310 [ 29.396965] ? skcipher_setkey_blkcipher+0x170/0x170 [ 29.402036] ? af_alg_alloc_areq+0x1f2/0x2f0 [ 29.406414] aead_recvmsg+0x7db/0x1970 [ 29.410270] ? aead_recvmsg+0x67d/0x1970 [ 29.414300] ? release_sock+0x1d4/0x2a0 [ 29.418242] ? __local_bh_enable_ip+0x121/0x230 [ 29.422885] ? aead_sendpage_nokey+0xa0/0xa0 [ 29.427261] ? aead_check_key.isra.6+0x61/0x200 [ 29.431897] aead_recvmsg_nokey+0x60/0x80 [ 29.436015] ? aead_recvmsg+0x1970/0x1970 [ 29.440128] sock_recvmsg+0xc9/0x110 [ 29.443807] ? __sock_recv_wifi_status+0x210/0x210 [ 29.448703] ___sys_recvmsg+0x29b/0x630 [ 29.452650] ? ___sys_sendmsg+0x8a0/0x8a0 [ 29.456775] ? fget_raw+0x20/0x20 [ 29.460194] ? find_held_lock+0x39/0x1d0 [ 29.464226] ? lock_downgrade+0x980/0x980 [ 29.468345] ? __fdget+0x18/0x20 [ 29.471681] __sys_recvmsg+0xe2/0x210 [ 29.475447] ? __sys_recvmsg+0xe2/0x210 [ 29.479389] ? SyS_sendmmsg+0x60/0x60 [ 29.483157] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.488142] ? lockdep_sys_exit+0x47/0xf0 [ 29.492261] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 29.497248] SyS_recvmsg+0x2d/0x50 [ 29.500755] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 29.505475] RIP: 0033:0x44b8a9 [ 29.508632] RSP: 002b:00007fce4c8e1d08 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 29.516306] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044b8a9 [ 29.523542] RDX: 0000000000002103 RSI: 0000000020709fc8 RDI: 0000000000000005 [ 29.530952] RBP: 0000000000000086 R08: 00007fce4c8e2700 R09: 00007fce4c8e2700 [ 29.539489] R10: 00007fce4c8e2700 R11: 0000000000000246 R12: 0000000000000000 [ 29.549421] R13: 00007ffe7218a1ff R14: 00007fce4c8e29c0 R15: 0000000000000000 executing program executing program executing program [ 29.556665] 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 [ 29.575755] RIP: blkcipher_walk_done+0x447/0xde0 RSP: ffff8801c17d76f0 [ 29.582591] ---[ end trace 8b3f6157e6765410 ]--- [ 29.594740] Kernel panic - not syncing: Fatal exception [ 29.600716] Dumping ftrace buffer: [ 29.604227] (ftrace buffer empty) [ 29.608596] Kernel Offset: disabled [ 29.613750] Rebooting in 86400 seconds..