[....] Starting enhanced syslogd: rsyslogd[ 12.305492] audit: type=1400 audit(1513003567.832:5): avc: denied { syslog } for pid=2990 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: [ 16.716009] audit: type=1400 audit(1513003572.242:6): avc: denied { map } for pid=3129 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-8,10.128.15.209' (ECDSA) to the list of known hosts. executing program [ 26.502706] audit: type=1400 audit(1513003582.029:7): avc: denied { map } for pid=3144 comm="syzkaller262225" path="/root/syzkaller262225535" 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 [ 26.548975] kasan: CONFIG_KASAN_INLINE enabled [ 26.553625] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.561039] general protection fault: 0000 [#1] SMP KASAN [ 26.566552] Dumping ftrace buffer: [ 26.570057] (ftrace buffer empty) [ 26.573732] Modules linked in: [ 26.576895] CPU: 1 PID: 3144 Comm: syzkaller262225 Not tainted 4.15.0-rc2-mm1+ #39 [ 26.584565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.593891] RIP: 0010:scatterwalk_copychunks+0x337/0x480 [ 26.599302] RSP: 0018:ffff8801c53e72f0 EFLAGS: 00010203 [ 26.604628] RAX: 000000000056807c RBX: 0000000000f1ae60 RCX: ffffffff825056d9 [ 26.611863] RDX: 00000000000ad010 RSI: 0000000000000000 RDI: 0000000000568084 [ 26.619100] RBP: ffff8801c53e7350 R08: 00000000fffff8f8 R09: 0000000000000000 [ 26.626334] R10: 0000000000000004 R11: ffff8801c53f0500 R12: 0000000000f1ae60 [ 26.633569] R13: ffff8801c53e7548 R14: dffffc0000000000 R15: 000000000056807c [ 26.640805] FS: 000000000241c880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 26.648996] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.654845] CR2: 0000000020f7bfe0 CR3: 00000001c5795000 CR4: 00000000001406e0 [ 26.662081] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.669321] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.676559] Call Trace: [ 26.679122] blkcipher_walk_done+0xa4b/0xde0 [ 26.683502] glue_ctr_crypt_128bit+0x597/0xc20 [ 26.688057] ? glue_ecb_crypt_128bit+0x5c0/0x5c0 [ 26.692783] ? wp512_final+0x19e/0x2a0 [ 26.696638] ? memset+0x31/0x40 [ 26.699888] ? memzero_explicit+0xe/0x10 [ 26.703914] ? wp384_final+0x8b/0xc0 [ 26.707594] ? wp256_final+0xc0/0xc0 [ 26.711274] ? wp512_update+0x3b5/0x510 [ 26.715226] ctr_crypt+0x34/0x40 [ 26.718558] ? ctr_crypt+0x34/0x40 [ 26.722064] ? encrypt_callback+0x240/0x240 [ 26.726351] __ablk_encrypt+0x1d1/0x2d0 [ 26.730292] ? ablk_set_key+0x1a0/0x1a0 [ 26.734234] ? shash_async_update+0x20/0x20 [ 26.738520] ? kfree+0xe4/0x250 [ 26.741765] ? __ablk_encrypt+0x2d0/0x2d0 [ 26.745876] ablk_encrypt+0x23e/0x2c0 [ 26.749642] ? __ablk_encrypt+0x2d0/0x2d0 [ 26.753758] skcipher_decrypt_ablkcipher+0x312/0x420 [ 26.758826] ? scatterwalk_ffwd+0xbf/0x370 [ 26.763036] poly_tail_continue+0x42a/0x6b0 [ 26.767325] poly_tail+0x40f/0x520 [ 26.770835] poly_cipherpad+0x33e/0x470 [ 26.774776] poly_cipher+0x303/0x440 [ 26.778464] poly_adpad+0x347/0x480 [ 26.782058] poly_ad+0x25c/0x300 [ 26.785393] poly_setkey+0x2fc/0x3e0 [ 26.789074] poly_init+0x16c/0x1d0 [ 26.792583] poly_genkey+0x422/0x590 [ 26.796265] chachapoly_decrypt+0x73/0x90 [ 26.800378] aead_recvmsg+0x14a7/0x1bc0 [ 26.804325] ? aead_release+0x50/0x50 [ 26.808093] ? selinux_socket_recvmsg+0x36/0x40 [ 26.812727] ? security_socket_recvmsg+0x91/0xc0 [ 26.817454] ? aead_release+0x50/0x50 [ 26.821222] sock_recvmsg+0xc9/0x110 [ 26.824900] ? __sock_recv_wifi_status+0x210/0x210 [ 26.829796] ___sys_recvmsg+0x29b/0x630 [ 26.833737] ? ___sys_sendmsg+0x8a0/0x8a0 [ 26.837860] ? fget_raw+0x20/0x20 [ 26.841280] ? __handle_mm_fault+0x3dd0/0x3dd0 [ 26.845837] ? vmacache_find+0x5f/0x280 [ 26.849781] ? up_read+0x1a/0x40 [ 26.853116] ? __do_page_fault+0x3d6/0xc90 [ 26.857316] ? fd_install+0x4d/0x60 [ 26.860910] ? __fdget+0x18/0x20 [ 26.864246] __sys_recvmsg+0xe2/0x210 [ 26.868013] ? __sys_recvmsg+0xe2/0x210 [ 26.871957] ? SyS_sendmmsg+0x60/0x60 [ 26.875728] ? __do_page_fault+0xc90/0xc90 [ 26.879929] ? SyS_setsockopt+0x215/0x360 [ 26.884047] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.889034] SyS_recvmsg+0x2d/0x50 [ 26.892543] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.897263] RIP: 0033:0x43ff39 [ 26.900418] RSP: 002b:00007ffde0e7d3c8 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 26.908090] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff39 [ 26.915335] RDX: 0000000000000000 RSI: 0000000020c0c000 RDI: 0000000000000004 [ 26.922570] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 26.929804] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018a0 [ 26.937037] R13: 0000000000401930 R14: 0000000000000000 R15: 0000000000000000 [ 26.944279] Code: 89 ff e8 2d 6c 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 [ 26.963345] RIP: scatterwalk_copychunks+0x337/0x480 RSP: ffff8801c53e72f0 [ 26.970279] ---[ end trace d81f631a20524d90 ]--- [ 26.975028] Kernel panic - not syncing: Fatal exception [ 26.980821] Dumping ftrace buffer: [ 26.984327] (ftrace buffer empty) [ 26.987999] Kernel Offset: disabled [ 26.991600] Rebooting in 86400 seconds..