[....] Starting enhanced syslogd: rsyslogd[ 13.965373] audit: type=1400 audit(1513126954.355:5): avc: denied { syslog } for pid=3000 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: [ 17.968469] audit: type=1400 audit(1513126958.358:6): 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-kasan-gce-3,10.128.15.207' (ECDSA) to the list of known hosts. executing program [ 24.327831] audit: type=1400 audit(1513126964.717:7): avc: denied { map } for pid=3154 comm="syzkaller182506" path="/root/syzkaller182506292" 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 [ 24.352688] kasan: CONFIG_KASAN_INLINE enabled [ 24.352699] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.352706] general protection fault: 0000 [#1] SMP KASAN [ 24.352710] Dumping ftrace buffer: [ 24.352713] (ftrace buffer empty) [ 24.352714] Modules linked in: [ 24.352720] CPU: 0 PID: 3154 Comm: syzkaller182506 Not tainted 4.15.0-rc3+ #218 [ 24.352722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.352733] RIP: 0010:blkcipher_walk_done+0x300/0xde0 [ 24.352735] RSP: 0018:ffff8801c508f4a0 EFLAGS: 00010202 [ 24.352738] RAX: 0000000000000000 RBX: 0000000064417904 RCX: 0000000000000001 [ 24.352741] RDX: dffffc0000000000 RSI: 0000000000000fd6 RDI: 0000000000000008 [ 24.352743] RBP: ffff8801c508f4f0 R08: ffffed003954f7fb R09: 0000000000000000 [ 24.352745] R10: 0000000000000003 R11: ffffed003954f7fa R12: ffff8801c508f6a8 [ 24.352747] R13: ffff8801c508f590 R14: ffff8801c508f5d8 R15: ffff8801c508f5b8 [ 24.352751] FS: 0000000001c47880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 24.352753] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.352755] CR2: 0000000020931fd0 CR3: 00000001c67f4000 CR4: 00000000001406f0 [ 24.352760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.352762] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.352764] Call Trace: [ 24.352769] ? crypto_inc+0x74/0x1b0 [ 24.352777] crypto_ctr_crypt+0x3ca/0x840 [ 24.352782] ? rmd256_update+0x92/0x140 [ 24.352790] ? blowfish_setkey+0x710/0x710 [ 24.352794] ? crypto_rfc3686_create+0xc40/0xc40 [ 24.352805] ? shash_ahash_finup+0x1d9/0x270 [ 24.352811] ? crypto_rfc3686_create+0xc40/0xc40 [ 24.352815] skcipher_decrypt_blkcipher+0x213/0x310 [ 24.352818] ? skcipher_decrypt_blkcipher+0x213/0x310 [ 24.352823] ? skcipher_encrypt_blkcipher+0x310/0x310 [ 24.352829] ? scatterwalk_ffwd+0xbf/0x370 [ 24.352835] poly_tail_continue+0x42a/0x6b0 [ 24.352838] ? crypto_ahash_op+0xc4/0x140 [ 24.352845] poly_tail+0x40f/0x520 [ 24.352851] poly_cipherpad+0x33e/0x470 [ 24.352857] poly_cipher+0x303/0x440 [ 24.352863] poly_adpad+0x347/0x480 [ 24.352869] poly_ad+0x25c/0x300 [ 24.352874] poly_setkey+0x2fc/0x3e0 [ 24.352880] poly_init+0x16c/0x1d0 [ 24.352885] poly_genkey+0x422/0x590 [ 24.352891] chachapoly_encrypt+0x418/0x620 [ 24.352899] aead_recvmsg+0x1295/0x1bc0 [ 24.352912] ? aead_release+0x50/0x50 [ 24.352919] ? selinux_socket_recvmsg+0x36/0x40 [ 24.352924] ? security_socket_recvmsg+0x91/0xc0 [ 24.352929] ? aead_release+0x50/0x50 [ 24.352935] sock_recvmsg+0xc9/0x110 [ 24.352939] ? __sock_recv_wifi_status+0x210/0x210 [ 24.352944] ___sys_recvmsg+0x29b/0x630 [ 24.352952] ? ___sys_sendmsg+0x8a0/0x8a0 [ 24.352964] ? rcu_note_context_switch+0x710/0x710 [ 24.352971] ? fget_raw+0x20/0x20 [ 24.352978] ? __sys_sendmmsg+0x1e6/0x5f0 [ 24.352981] ? __sys_sendmmsg+0x3f0/0x5f0 [ 24.352992] ? SyS_sendmsg+0x50/0x50 [ 24.352998] ? __fdget+0x18/0x20 [ 24.353008] __sys_recvmsg+0xe2/0x210 [ 24.353012] ? __sys_recvmsg+0xe2/0x210 [ 24.353017] ? SyS_sendmmsg+0x60/0x60 [ 24.353024] ? __do_page_fault+0xc90/0xc90 [ 24.353030] ? SyS_setsockopt+0x215/0x360 [ 24.353041] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.353047] SyS_recvmsg+0x2d/0x50 [ 24.353054] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.353057] RIP: 0033:0x43ffa9 [ 24.353059] RSP: 002b:00007ffdeea69838 EFLAGS: 00000207 ORIG_RAX: 000000000000002f [ 24.353063] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffa9 [ 24.353065] RDX: 0000000000000020 RSI: 00000000201f5000 RDI: 0000000000000004 [ 24.353067] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 24.353069] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401910 [ 24.353071] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 24.353080] Code: 00 fc ff df 48 c1 e9 03 80 3c 11 00 0f 85 7a 09 00 00 48 8d 78 08 48 ba 00 00 00 00 00 fc ff df 49 89 45 20 48 89 f9 48 c1 e9 03 <0f> b6 14 11 84 d2 74 09 80 fa 03 0f 8e 3e 09 00 00 4c 89 f9 8b [ 24.353146] RIP: blkcipher_walk_done+0x300/0xde0 RSP: ffff8801c508f4a0 [ 24.353168] ---[ end trace 83ed52401d96819d ]--- [ 24.353171] Kernel panic - not syncing: Fatal exception [ 24.353698] Dumping ftrace buffer: [ 24.353700] (ftrace buffer empty) [ 24.353702] Kernel Offset: disabled [ 24.761236] Rebooting in 86400 seconds..