[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 12.497329] sshd (3025) used greatest stack depth: 14504 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.533528] audit: type=1400 audit(1513201057.450:6): avc: denied { map } for pid=3130 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-9,10.128.0.50' (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 [ 34.362437] audit: type=1400 audit(1513201074.279:7): avc: denied { map } for pid=3148 comm="syzkaller231876" path="/root/syzkaller231876395" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 41.064964] kasan: CONFIG_KASAN_INLINE enabled [ 41.069662] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.077243] general protection fault: 0000 [#1] SMP KASAN [ 41.082750] Dumping ftrace buffer: [ 41.086255] (ftrace buffer empty) [ 41.089931] Modules linked in: [ 41.093091] CPU: 0 PID: 7704 Comm: syzkaller231876 Not tainted 4.15.0-rc2-mm1+ #39 [ 41.100760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.110089] RIP: 0010:blkcipher_walk_first+0x17a/0x570 executing program executing program [ 41.115350] RSP: 0018:ffff8801c8ef7700 EFLAGS: 00010202 [ 41.120677] RAX: dffffc0000000000 RBX: ffff8801c8ef78e8 RCX: ffffffff82267f11 [ 41.127912] RDX: 0000000000000001 RSI: 1ffff100391def09 RDI: 0000000000000008 [ 41.135168] RBP: ffff8801c8ef7748 R08: 0000000000000000 R09: ffff8801d320a950 [ 41.142409] R10: ffff8801c8ef78b8 R11: ffffed003a641531 R12: 0000000000000000 [ 41.149648] R13: ffff8801c8ef7848 R14: 0000000000000010 R15: ffff8801c8ef77d0 [ 41.156888] FS: 00007f72c96ff700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 41.165079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.170926] CR2: 00000000200fd000 CR3: 00000001d9869000 CR4: 00000000001406f0 [ 41.178164] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.185400] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.192652] Call Trace: [ 41.195211] ? null_compress+0x80/0x80 [ 41.199063] blkcipher_walk_virt+0x219/0x2a0 [ 41.203438] skcipher_null_crypt+0x10e/0x2d0 [ 41.207811] ? null_compress+0x80/0x80 [ 41.211664] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 41.217165] ? __kmalloc+0x471/0x760 [ 41.220847] ? af_alg_unregister_type+0x3d0/0x3d0 [ 41.225660] ? null_compress+0x80/0x80 [ 41.229511] skcipher_encrypt_blkcipher+0x213/0x310 [ 41.234493] ? skcipher_encrypt_blkcipher+0x213/0x310 [ 41.239652] ? skcipher_setkey_blkcipher+0x170/0x170 [ 41.244721] ? af_alg_alloc_areq+0x1f2/0x2f0 [ 41.249097] aead_recvmsg+0x7ed/0x1bc0 [ 41.252950] ? aead_recvmsg+0x670/0x1bc0 [ 41.256983] ? aead_release+0x50/0x50 [ 41.260749] ? selinux_socket_recvmsg+0x36/0x40 [ 41.265389] ? security_socket_recvmsg+0x91/0xc0 [ 41.270110] ? aead_release+0x50/0x50 [ 41.273874] sock_recvmsg+0xc9/0x110 [ 41.277551] ? __sock_recv_wifi_status+0x210/0x210 [ 41.282445] ___sys_recvmsg+0x29b/0x630 [ 41.286388] ? ___sys_sendmsg+0x8a0/0x8a0 [ 41.290509] ? fget_raw+0x20/0x20 [ 41.293928] ? __handle_mm_fault+0x3dd0/0x3dd0 [ 41.298475] ? vmacache_find+0x5f/0x280 [ 41.302416] ? up_read+0x1a/0x40 [ 41.305766] ? __do_page_fault+0x3d6/0xc90 [ 41.309964] ? lock_downgrade+0x980/0x980 [ 41.314078] ? __fdget+0x18/0x20 [ 41.317412] __sys_recvmsg+0xe2/0x210 [ 41.321175] ? __sys_recvmsg+0xe2/0x210 [ 41.325119] ? SyS_sendmmsg+0x60/0x60 [ 41.328885] ? __do_page_fault+0xc90/0xc90 [ 41.333084] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.338067] ? lockdep_sys_exit+0x47/0xf0 [ 41.342271] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.347255] SyS_recvmsg+0x2d/0x50 [ 41.350763] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 41.355483] RIP: 0033:0x448229 [ 41.358638] RSP: 002b:00007f72c96fed08 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 41.366317] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000448229 [ 41.373563] RDX: 0000000000002002 RSI: 0000000020fd9fc8 RDI: 000000000000008e [ 41.380810] RBP: 0000000000000000 R08: 00007f72c96ff700 R09: 00007f72c96ff700 [ 41.388047] R10: 00007f72c96ff700 R11: 0000000000000246 R12: 0000000000000000 [ 41.395282] R13: 00007ffc9fe339ff R14: 00007f72c96ff9c0 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program [ 41.402528] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 a7 03 00 00 4d 8b 67 20 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 18 03 00 00 49 8d 7f 28 48 [ 41.421601] RIP: blkcipher_walk_first+0x17a/0x570 RSP: ffff8801c8ef7700 [ 41.428423] ---[ end trace 936cd9db95b6f033 ]--- [ 41.435633] Kernel panic - not syncing: Fatal exception [ 41.440998] Dumping ftrace buffer: [ 41.444506] (ftrace buffer empty) [ 41.448182] Kernel Offset: disabled [ 41.451777] Rebooting in 86400 seconds..