[....] Starting enhanced syslogd: rsyslogd[ 12.587620] audit: type=1400 audit(1513136728.232:5): avc: denied { syslog } for pid=3001 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.942624] audit: type=1400 audit(1513136733.587:6): avc: denied { map } for pid=3140 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-next-kasan-gce-0,10.128.0.19' (ECDSA) to the list of known hosts. executing program [ 24.269211] audit: type=1400 audit(1513136739.914:7): avc: denied { map } for pid=3154 comm="syzkaller127861" path="/root/syzkaller127861271" 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 [ 24.288009] kasan: CONFIG_KASAN_INLINE enabled [ 24.288062] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.288071] general protection fault: 0000 [#1] SMP KASAN [ 24.288076] Dumping ftrace buffer: [ 24.288079] (ftrace buffer empty) [ 24.288081] Modules linked in: [ 24.288091] CPU: 0 PID: 3154 Comm: syzkaller127861 Not tainted 4.15.0-rc3-next-20171212+ #65 [ 24.288094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.288106] RIP: 0010:scatterwalk_copychunks+0x337/0x480 [ 24.288109] RSP: 0018:ffff8801c4a672e8 EFLAGS: 00010202 [ 24.288115] RAX: 0000000000000000 RBX: 0000000000000029 RCX: ffffffff82504a69 [ 24.288118] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008 [ 24.288122] RBP: ffff8801c4a67348 R08: ffffed003888db6e R09: ffffed003888db6e [ 24.288126] R10: 0000000000000003 R11: ffffed003888db6d R12: 0000000000000029 [ 24.288129] R13: ffff8801c4a67660 R14: dffffc0000000000 R15: 0000000000000000 [ 24.288134] FS: 00000000024da880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 24.288138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.288141] CR2: 00000000208b4fb0 CR3: 00000001c6232000 CR4: 00000000001406f0 [ 24.288147] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.288150] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.288152] Call Trace: [ 24.288167] skcipher_walk_next+0x8db/0x1bd0 [ 24.288183] ? skcipher_walk_done+0xcb0/0xcb0 [ 24.288199] ? memcpy+0x45/0x50 [ 24.288213] skcipher_walk_first+0x138/0x400 [ 24.288218] ? memset+0x31/0x40 [ 24.288230] skcipher_walk_skcipher+0x51b/0x6e0 [ 24.288239] skcipher_walk_virt+0x58/0xd0 [ 24.288248] chacha20_simd+0x167/0x410 [ 24.288256] ? crypto_shash_final+0xdb/0x1f0 [ 24.288262] ? rmd256_transform+0x20/0x1580 [ 24.288269] ? chacha20_dosimd+0x340/0x340 [ 24.288277] ? shash_finup_unaligned+0x47/0x60 [ 24.288285] ? crypto_hash_walk_done+0x124/0x410 [ 24.288296] ? shash_ahash_finup+0x1d9/0x270 [ 24.288320] poly_tail_continue+0x42a/0x6b0 [ 24.288327] ? poly_tail_continue+0x42a/0x6b0 [ 24.288332] ? crypto_ahash_op+0xc4/0x140 [ 24.288342] poly_tail+0x40f/0x520 [ 24.288352] poly_cipherpad+0x33e/0x470 [ 24.288362] poly_cipher+0x303/0x440 [ 24.288371] poly_adpad+0x347/0x480 [ 24.288381] poly_ad+0x25c/0x300 [ 24.288390] poly_setkey+0x2fc/0x3e0 [ 24.288400] poly_init+0x16c/0x1d0 [ 24.288408] poly_genkey+0x422/0x590 [ 24.288418] chachapoly_decrypt+0x73/0x90 [ 24.288426] aead_recvmsg+0x154b/0x1cf0 [ 24.288447] ? aead_release+0x50/0x50 [ 24.288456] ? selinux_socket_recvmsg+0x36/0x40 [ 24.288464] ? security_socket_recvmsg+0x91/0xc0 [ 24.288472] ? aead_release+0x50/0x50 [ 24.288479] sock_recvmsg+0xc9/0x110 [ 24.288485] ? __sock_recv_wifi_status+0x210/0x210 [ 24.288493] ___sys_recvmsg+0x29b/0x630 [ 24.288505] ? ___sys_sendmsg+0x8a0/0x8a0 [ 24.288527] ? vmacache_find+0x5f/0x280 [ 24.288539] ? up_read+0x1a/0x40 [ 24.288547] ? __do_page_fault+0x3d6/0xc90 [ 24.288553] ? fd_install+0x4d/0x60 [ 24.288565] ? __fdget+0x18/0x20 [ 24.288576] __sys_recvmsg+0xe2/0x210 [ 24.288581] ? __sys_recvmsg+0xe2/0x210 [ 24.288588] ? SyS_sendmmsg+0x60/0x60 [ 24.288596] ? __do_page_fault+0xc90/0xc90 [ 24.288606] ? SyS_setsockopt+0x215/0x360 [ 24.288621] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.288631] SyS_recvmsg+0x2d/0x50 [ 24.288641] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.288645] RIP: 0033:0x43ffa9 [ 24.288648] RSP: 002b:00007ffe26c06cd8 EFLAGS: 00000207 ORIG_RAX: 000000000000002f [ 24.288654] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffa9 [ 24.288658] RDX: 0000000000012163 RSI: 0000000020d63fc8 RDI: 0000000000000004 [ 24.288661] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 24.288665] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401910 [ 24.288668] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 24.288682] Code: 89 ff e8 1d 6d 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 [ 24.288793] RIP: scatterwalk_copychunks+0x337/0x480 RSP: ffff8801c4a672e8 [ 24.288801] ---[ end trace e33297c977a87a11 ]--- [ 24.288805] Kernel panic - not syncing: Fatal exception [ 24.295826] Dumping ftrace buffer: [ 24.295828] (ftrace buffer empty) [ 24.295831] Kernel Offset: disabled [ 24.719377] Rebooting in 86400 seconds..