[....] Starting enhanced syslogd: rsyslogd[ 11.165863] audit: type=1400 audit(1513868362.730:5): avc: denied { syslog } for pid=2999 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: [ 15.745049] audit: type=1400 audit(1513868367.309:6): 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-9,10.128.15.193' (ECDSA) to the list of known hosts. executing program executing program [ 26.142800] audit: type=1400 audit(1513868377.707:7): avc: denied { map } for pid=3155 comm="syzkaller472155" path="/root/syzkaller472155999" 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 [ 26.165873] kasan: CONFIG_KASAN_INLINE enabled [ 26.165887] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.165895] general protection fault: 0000 [#1] SMP KASAN [ 26.165900] Dumping ftrace buffer: [ 26.165904] (ftrace buffer empty) [ 26.165906] Modules linked in: [ 26.165915] CPU: 0 PID: 3155 Comm: syzkaller472155 Not tainted 4.15.0-rc4-next-20171221+ #78 [ 26.165919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.165931] RIP: 0010:scatterwalk_copychunks+0x337/0x480 [ 26.165935] RSP: 0018:ffff8801c8ac7238 EFLAGS: 00010202 [ 26.165941] RAX: 0000000000000000 RBX: 0000000000000fa6 RCX: ffffffff82513ac9 [ 26.165944] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008 [ 26.165948] RBP: ffff8801c8ac7298 R08: ffffed003b2bd5b2 R09: ffffed003b2bd5b2 [ 26.165952] R10: 0000000000000002 R11: ffffed003b2bd5b1 R12: 0000000000000fa6 [ 26.165955] R13: ffff8801c8ac7610 R14: dffffc0000000000 R15: 0000000000000000 [ 26.165960] FS: 000000000193d880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 26.165964] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.165968] CR2: 0000000020b10000 CR3: 00000001d9848001 CR4: 00000000001606f0 [ 26.165974] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.165978] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.165979] Call Trace: [ 26.165995] skcipher_walk_next+0x8db/0x1bd0 [ 26.166014] ? skcipher_walk_done+0xcb0/0xcb0 [ 26.166028] ? print_irqtrace_events+0x270/0x270 [ 26.166043] skcipher_walk_first+0x138/0x400 [ 26.166056] skcipher_walk_skcipher+0x51b/0x6e0 [ 26.166064] skcipher_walk_virt+0x58/0xd0 [ 26.166082] crypto_chacha20_crypt+0xc9/0xbd0 [ 26.166095] ? crypto_chacha20_setkey+0xc0/0xc0 [ 26.166106] ? crypto_sm3_finup+0x8d/0x150 [ 26.166116] ? crypto_hash_walk_done+0x124/0x410 [ 26.166126] ? shash_ahash_finup+0x1d9/0x270 [ 26.166151] poly_tail_continue+0x42a/0x6b0 [ 26.166157] ? poly_tail_continue+0x42a/0x6b0 [ 26.166162] ? crypto_ahash_op+0xc4/0x140 [ 26.166173] poly_tail+0x40f/0x520 [ 26.166183] poly_cipherpad+0x33e/0x470 [ 26.166194] poly_cipher+0x303/0x440 [ 26.166202] poly_adpad+0x347/0x480 [ 26.166212] poly_ad+0x25c/0x300 [ 26.166220] poly_setkey+0x2fc/0x3e0 [ 26.166229] poly_init+0x16c/0x1d0 [ 26.166237] poly_genkey+0x422/0x590 [ 26.166246] chachapoly_encrypt+0x418/0x620 [ 26.166258] aead_recvmsg+0x137f/0x1cf0 [ 26.166280] ? aead_release+0x50/0x50 [ 26.166290] ? selinux_socket_recvmsg+0x36/0x40 [ 26.166298] ? security_socket_recvmsg+0x91/0xc0 [ 26.166307] ? aead_release+0x50/0x50 [ 26.166315] sock_recvmsg+0xc9/0x110 [ 26.166321] ? __sock_recv_wifi_status+0x210/0x210 [ 26.166330] ___sys_recvmsg+0x2a4/0x640 [ 26.166343] ? ___sys_sendmsg+0x8b0/0x8b0 [ 26.166356] ? __do_page_fault+0x5f7/0xc90 [ 26.166364] ? lock_downgrade+0x980/0x980 [ 26.166375] ? __fget_light+0x297/0x380 [ 26.166383] ? fget_raw+0x20/0x20 [ 26.166391] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 26.166396] ? vmacache_find+0x5f/0x280 [ 26.166407] ? up_read+0x1a/0x40 [ 26.166414] ? __do_page_fault+0x3d6/0xc90 [ 26.166421] ? SYSC_accept4+0x4ff/0x870 [ 26.166432] ? __fdget+0x18/0x20 [ 26.166442] __sys_recvmsg+0xe2/0x210 [ 26.166448] ? __sys_recvmsg+0xe2/0x210 [ 26.166456] ? SyS_sendmmsg+0x60/0x60 [ 26.166465] ? __do_page_fault+0xc90/0xc90 [ 26.166475] ? SyS_setsockopt+0x215/0x360 [ 26.166491] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.166502] SyS_recvmsg+0x2d/0x50 [ 26.166511] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.166516] RIP: 0033:0x43fef9 [ 26.166519] RSP: 002b:00007ffdd03d8688 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 26.166525] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fef9 [ 26.166528] RDX: 0000000000000000 RSI: 0000000020c0c000 RDI: 0000000000000005 [ 26.166532] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 26.166535] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401860 [ 26.166539] R13: 00000000004018f0 R14: 0000000000000000 R15: 0000000000000000 [ 26.166553] Code: 89 ff e8 cd 89 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 [ 26.166667] RIP: scatterwalk_copychunks+0x337/0x480 RSP: ffff8801c8ac7238 [ 26.166797] ---[ end trace 4a3588eaf2c61209 ]--- [ 26.166804] Kernel panic - not syncing: Fatal exception [ 26.169065] Dumping ftrace buffer: [ 26.169067] (ftrace buffer empty) [ 26.169070] Kernel Offset: disabled [ 26.597491] Rebooting in 86400 seconds..