[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 13.639184] audit: type=1400 audit(1513143383.844:6): avc: denied { map } for pid=3131 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-5,10.128.0.41' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 19.909843] audit: type=1400 audit(1513143390.115:7): avc: denied { map } for pid=3145 comm="syzkaller556753" path="/root/syzkaller556753084" 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 [ 19.947908] kasan: CONFIG_KASAN_INLINE enabled [ 19.952550] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 19.960264] general protection fault: 0000 [#1] SMP KASAN [ 19.965800] Dumping ftrace buffer: [ 19.969305] (ftrace buffer empty) [ 19.972984] Modules linked in: [ 19.976152] CPU: 0 PID: 3145 Comm: syzkaller556753 Not tainted 4.15.0-rc3+ #219 [ 19.983563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.992890] RIP: 0010:scatterwalk_copychunks+0x337/0x480 [ 19.998405] RSP: 0018:ffff8801c497f2f0 EFLAGS: 00010202 [ 20.003731] RAX: 0000000000000000 RBX: 0000000000000029 RCX: ffffffff82501e79 [ 20.010965] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008 [ 20.018201] RBP: ffff8801c497f350 R08: ffffed00389a0ede R09: ffffed00389a0ede [ 20.025436] R10: 0000000000000003 R11: ffffed00389a0edd R12: 0000000000000029 [ 20.032675] R13: ffff8801c497f660 R14: dffffc0000000000 R15: 0000000000000000 [ 20.039919] FS: 0000000001227880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 20.048111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.053965] CR2: 00000000208b4fb0 CR3: 00000001c4d46000 CR4: 00000000001406f0 [ 20.061204] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.068439] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.075674] Call Trace: [ 20.078242] skcipher_walk_next+0x8db/0x1bd0 [ 20.082628] ? skcipher_walk_done+0xcb0/0xcb0 [ 20.087095] ? memcpy+0x45/0x50 [ 20.090345] skcipher_walk_first+0x138/0x400 [ 20.094733] ? rmd256_final+0x187/0x230 [ 20.098676] skcipher_walk_skcipher+0x519/0x6e0 [ 20.103313] skcipher_walk_virt+0x58/0xd0 [ 20.107428] chacha20_simd+0x167/0x410 [ 20.111281] ? crypto_shash_final+0xdb/0x1f0 [ 20.115655] ? rmd256_transform+0x20/0x1580 [ 20.119953] ? chacha20_dosimd+0x340/0x340 [ 20.124155] ? shash_finup_unaligned+0x47/0x60 [ 20.128703] ? crypto_hash_walk_done+0x124/0x410 [ 20.133428] ? shash_ahash_finup+0x1d9/0x270 [ 20.137814] poly_tail_continue+0x42a/0x6b0 [ 20.142101] ? poly_tail_continue+0x42a/0x6b0 [ 20.146564] ? crypto_ahash_op+0xc4/0x140 [ 20.150679] poly_tail+0x40f/0x520 [ 20.154188] poly_cipherpad+0x33e/0x470 [ 20.158130] poly_cipher+0x303/0x440 [ 20.161810] poly_adpad+0x347/0x480 [ 20.165403] poly_ad+0x25c/0x300 [ 20.168738] poly_setkey+0x2fc/0x3e0 [ 20.172424] poly_init+0x16c/0x1d0 [ 20.175933] poly_genkey+0x422/0x590 [ 20.179619] chachapoly_decrypt+0x73/0x90 [ 20.183736] aead_recvmsg+0x14a7/0x1bc0 [ 20.187685] ? aead_release+0x50/0x50 [ 20.191463] ? selinux_socket_recvmsg+0x36/0x40 [ 20.196099] ? security_socket_recvmsg+0x91/0xc0 [ 20.200828] ? aead_release+0x50/0x50 [ 20.204596] sock_recvmsg+0xc9/0x110 [ 20.208275] ? __sock_recv_wifi_status+0x210/0x210 [ 20.213173] ___sys_recvmsg+0x29b/0x630 [ 20.217116] ? ___sys_sendmsg+0x8a0/0x8a0 [ 20.221242] ? vmacache_find+0x5f/0x280 [ 20.225193] ? up_read+0x1a/0x40 [ 20.228532] ? __do_page_fault+0x3d6/0xc90 [ 20.232734] ? fd_install+0x4d/0x60 [ 20.236329] ? __fdget+0x18/0x20 [ 20.239663] __sys_recvmsg+0xe2/0x210 [ 20.243434] ? __sys_recvmsg+0xe2/0x210 [ 20.247373] ? SyS_sendmmsg+0x60/0x60 [ 20.251141] ? __do_page_fault+0xc90/0xc90 [ 20.255342] ? SyS_setsockopt+0x215/0x360 [ 20.259467] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 20.264451] SyS_recvmsg+0x2d/0x50 [ 20.267958] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 20.272679] RIP: 0033:0x43ffa9 [ 20.275835] RSP: 002b:00007ffcafde9df8 EFLAGS: 00000207 ORIG_RAX: 000000000000002f [ 20.283507] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffa9 [ 20.290742] RDX: 0000000000012163 RSI: 0000000020d63fc8 RDI: 0000000000000004 [ 20.297977] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 20.305212] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401910 [ 20.312448] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 20.319692] Code: 89 ff e8 7d 6e 2a 00 4c 89 ea 49 89 c7 48 c1 ea 03 42 80 3c 32 00 0f 85 c9 00 00 00 49 8d 7f 08 4d 89 7d 00 48 89 fa 48 c1 ea 03 <42> 0f b6 14 32 84 d2 74 09 80 fa 03 0f 8e 9e 00 00 00 48 8b 45 [ 20.338761] RIP: scatterwalk_copychunks+0x337/0x480 RSP: ffff8801c497f2f0 [ 20.345701] ---[ end trace 26d2ac246ee7fd36 ]--- [ 20.350599] Kernel panic - not syncing: Fatal exception [ 20.356377] Dumping ftrace buffer: [ 20.359884] (ftrace buffer empty) [ 20.363559] Kernel Offset: disabled [ 20.367152] Rebooting in 86400 seconds..