[....] Starting enhanced syslogd: rsyslogd[ 11.076242] audit: type=1400 audit(1513069146.667:5): avc: denied { syslog } for pid=2987 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: [ 28.652728] audit: type=1400 audit(1513069164.243:6): avc: denied { map } for pid=3131 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-7,10.128.15.193' (ECDSA) to the list of known hosts. executing program [ 34.809754] audit: type=1400 audit(1513069170.400:7): avc: denied { map } for pid=3145 comm="syzkaller965915" path="/root/syzkaller965915858" 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 [ 34.826939] kasan: CONFIG_KASAN_INLINE enabled [ 34.826950] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.826957] general protection fault: 0000 [#1] SMP KASAN [ 34.826960] Dumping ftrace buffer: [ 34.826963] (ftrace buffer empty) [ 34.826965] Modules linked in: [ 34.826970] CPU: 0 PID: 3145 Comm: syzkaller965915 Not tainted 4.15.0-rc2-mm1+ #39 [ 34.826973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.826982] RIP: 0010:scatterwalk_copychunks+0x337/0x480 [ 34.826985] RSP: 0018:ffff8801c56c72c0 EFLAGS: 00010202 [ 34.826988] RAX: 0000000000000000 RBX: 0000000000000fe1 RCX: ffffffff825056d9 [ 34.826990] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000008 [ 34.826993] RBP: ffff8801c56c7320 R08: ffffed0038bd5be2 R09: ffffed0038bd5be2 [ 34.826995] R10: 0000000000000002 R11: ffffed0038bd5be1 R12: 0000000000000fe1 [ 34.826998] R13: ffff8801c56c7630 R14: dffffc0000000000 R15: 0000000000000000 [ 34.827004] FS: 00000000018c8880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 34.827007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.827009] CR2: 000000002072bf80 CR3: 00000001c570a000 CR4: 00000000001406f0 [ 34.827013] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.827016] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.827017] Call Trace: [ 34.827029] skcipher_walk_next+0x8db/0x1bd0 [ 34.827039] ? skcipher_walk_done+0xcb0/0xcb0 [ 34.827051] skcipher_walk_first+0x138/0x400 [ 34.827058] ? memzero_explicit+0xe/0x10 [ 34.827065] ? tgr160_final+0x8b/0xc0 [ 34.827071] skcipher_walk_skcipher+0x519/0x6e0 [ 34.827076] skcipher_walk_virt+0x58/0xd0 [ 34.827082] chacha20_simd+0x167/0x410 [ 34.827086] ? tgr128_final+0x160/0x160 [ 34.827091] ? crypto_shash_final+0xdb/0x1f0 [ 34.827095] ? chacha20_dosimd+0x340/0x340 [ 34.827101] ? shash_finup_unaligned+0x47/0x60 [ 34.827106] ? crypto_hash_walk_done+0x124/0x410 [ 34.827113] ? shash_ahash_finup+0x1d9/0x270 [ 34.827129] poly_tail_continue+0x42a/0x6b0 [ 34.827133] ? poly_tail_continue+0x42a/0x6b0 [ 34.827136] ? crypto_ahash_op+0xc4/0x140 [ 34.827142] poly_tail+0x40f/0x520 [ 34.827148] poly_cipherpad+0x33e/0x470 [ 34.827155] poly_cipher+0x303/0x440 [ 34.827161] poly_adpad+0x347/0x480 [ 34.827167] poly_ad+0x25c/0x300 [ 34.827172] poly_setkey+0x2fc/0x3e0 [ 34.827178] poly_init+0x16c/0x1d0 [ 34.827184] poly_genkey+0x422/0x590 [ 34.827190] chachapoly_encrypt+0x418/0x620 [ 34.827199] aead_recvmsg+0x1295/0x1bc0 [ 34.827212] ? aead_release+0x50/0x50 [ 34.827219] ? selinux_socket_recvmsg+0x36/0x40 [ 34.827224] ? security_socket_recvmsg+0x91/0xc0 [ 34.827229] ? aead_release+0x50/0x50 [ 34.827233] sock_recvmsg+0xc9/0x110 [ 34.827237] ? __sock_recv_wifi_status+0x210/0x210 [ 34.827242] ___sys_recvmsg+0x29b/0x630 [ 34.827250] ? ___sys_sendmsg+0x8a0/0x8a0 [ 34.827270] ? up_read+0x1a/0x40 [ 34.827276] ? __do_page_fault+0x3d6/0xc90 [ 34.827281] ? fd_install+0x4d/0x60 [ 34.827289] ? __fdget+0x18/0x20 [ 34.827296] __sys_recvmsg+0xe2/0x210 [ 34.827299] ? __sys_recvmsg+0xe2/0x210 [ 34.827303] ? SyS_sendmmsg+0x60/0x60 [ 34.827308] ? __do_page_fault+0xc90/0xc90 [ 34.827314] ? SyS_setsockopt+0x215/0x360 [ 34.827324] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.827331] SyS_recvmsg+0x2d/0x50 [ 34.827338] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 34.827341] RIP: 0033:0x440079 [ 34.827343] RSP: 002b:00007fffa954ea48 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 34.827347] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440079 [ 34.827349] RDX: 0000000000000002 RSI: 000000002022efc8 RDI: 0000000000000004 [ 34.827351] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 34.827353] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004019e0 [ 34.827355] R13: 0000000000401a70 R14: 0000000000000000 R15: 0000000000000000 [ 34.827364] 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 [ 34.827436] RIP: scatterwalk_copychunks+0x337/0x480 RSP: ffff8801c56c72c0 [ 34.827460] ---[ end trace b0f8bdeadd73f832 ]--- [ 34.827462] Kernel panic - not syncing: Fatal exception [ 34.835664] Dumping ftrace buffer: [ 34.835666] (ftrace buffer empty) [ 34.835668] Kernel Offset: disabled [ 35.249503] Rebooting in 86400 seconds..