[....] Starting enhanced syslogd: rsyslogd[ 5.983060] audit: type=1400 audit(1513266525.498:5): avc: denied { syslog } for pid=2967 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: [ 9.249534] audit: type=1400 audit(1513266528.765:6): avc: denied { map } for pid=3102 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-5,10.128.15.215' (ECDSA) to the list of known hosts. executing program [ 15.134601] audit: type=1400 audit(1513266534.650:7): avc: denied { map } for pid=3116 comm="syzkaller511820" path="/root/syzkaller511820982" 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 [ 15.147382] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 15.148502] IP: blkcipher_walk_done+0xe7/0x360 [ 15.149135] PGD 213656067 P4D 213656067 PUD 21371f067 PMD 0 [ 15.149902] Oops: 0000 [#1] SMP [ 15.150376] Dumping ftrace buffer: [ 15.150877] (ftrace buffer empty) [ 15.151371] Modules linked in: [ 15.151803] CPU: 0 PID: 3116 Comm: syzkaller511820 Not tainted 4.15.0-rc3-next-20171214+ #67 [ 15.152980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 15.154253] RIP: 0010:blkcipher_walk_done+0xe7/0x360 [ 15.154924] RSP: 0018:ffffc900018bb828 EFLAGS: 00010293 [ 15.160261] RAX: 0000000000000000 RBX: ffffc900018bb8b0 RCX: ffffffff81739c3b [ 15.167504] RDX: 0000000000000000 RSI: ffffc900018bb8b0 RDI: ffff8802136d4810 [ 15.174748] RBP: ffffc900018bb850 R08: a458311a4890bbbc R09: 0000000000000001 [ 15.181984] R10: ffffc900018bb980 R11: ffff88020c2a8f50 R12: 0000000060453082 [ 15.189217] R13: ffffc900018bb9b0 R14: ffff8802136d4810 R15: 0000000000000f60 [ 15.196463] FS: 000000000114c880(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 15.204657] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.210512] CR2: 0000000000000008 CR3: 00000002134ee000 CR4: 00000000001406f0 [ 15.217747] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 15.224981] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 15.232223] Call Trace: [ 15.234779] glue_ctr_crypt_128bit+0x1ef/0x390 [ 15.239334] ? __kernel_fpu_end+0x37/0xb0 [ 15.243451] ctr_crypt+0x34/0x40 [ 15.246781] ? ctr_crypt+0x34/0x40 [ 15.250292] __ablk_encrypt+0x43/0x50 [ 15.254058] ablk_encrypt+0xd9/0xf0 [ 15.257650] skcipher_decrypt_ablkcipher+0x6d/0x70 [ 15.262542] poly_tail_continue+0x128/0x170 [ 15.266826] poly_tail+0x128/0x160 [ 15.270332] poly_cipherpad+0x126/0x160 [ 15.274269] poly_cipher+0xb9/0xd0 [ 15.277774] poly_adpad+0x126/0x160 [ 15.281363] poly_ad+0x7d/0x90 [ 15.284518] poly_setkey+0x107/0x130 [ 15.288204] poly_init+0x5a/0x70 [ 15.291532] poly_genkey+0x181/0x1c0 [ 15.295210] chachapoly_encrypt+0x10c/0x130 [ 15.299511] aead_recvmsg+0x758/0x8c0 [ 15.303282] sock_recvmsg+0x4d/0x70 [ 15.306872] ? kernel_sendmsg_locked+0xb0/0xb0 [ 15.311419] ___sys_recvmsg+0x118/0x2b0 [ 15.315362] ? __handle_mm_fault+0x2ec/0x1930 [ 15.319824] ? find_held_lock+0x35/0xa0 [ 15.323761] ? __fget_light+0x64/0xa0 [ 15.327524] ? __fdget+0x18/0x20 [ 15.330856] __sys_recvmsg+0x4d/0x90 [ 15.334544] ? __sys_recvmsg+0x4d/0x90 [ 15.338407] SyS_recvmsg+0x2d/0x50 [ 15.341914] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 15.346633] RIP: 0033:0x43ff89 [ 15.349786] RSP: 002b:00007ffd01b31518 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 15.357459] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff89 [ 15.364694] RDX: 0000000000000002 RSI: 000000002022efc8 RDI: 0000000000000004 [ 15.371927] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 15.379162] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018f0 [ 15.386397] R13: 0000000000401980 R14: 0000000000000000 R15: 0000000000000000 [ 15.393633] Code: e8 8f fc c3 ff 4c 8b 73 20 44 8b 7b 28 41 8b 46 0c 41 03 46 08 41 39 c7 72 4f e8 75 fc c3 ff 4c 89 f7 e8 3d f5 0b 00 48 89 43 20 <8b> 40 08 89 43 28 e8 5e fc c3 ff 4c 8b 73 38 44 8b 7b 40 41 8b [ 15.412676] RIP: blkcipher_walk_done+0xe7/0x360 RSP: ffffc900018bb828 [ 15.419214] CR2: 0000000000000008 [ 15.422723] ---[ end trace 5b734bd48ad16447 ]--- [ 15.427605] Kernel panic - not syncing: Fatal exception [ 15.433365] Dumping ftrace buffer: [ 15.436875] (ftrace buffer empty) [ 15.440552] Kernel Offset: disabled [ 15.444143] Rebooting in 86400 seconds..