[....] Starting enhanced syslogd: rsyslogd[ 11.401042] audit: type=1400 audit(1513981523.347:5): avc: denied { syslog } for pid=2996 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: [ 16.060679] audit: type=1400 audit(1513981528.007:6): avc: denied { map } for pid=3135 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-9,10.128.0.36' (ECDSA) to the list of known hosts. [ 22.247858] audit: type=1400 audit(1513981534.194:7): avc: denied { map } for pid=3149 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2017/12/22 22:25:34 parsed 1 programs 2017/12/22 22:25:34 executed programs: 0 [ 22.364531] audit: type=1400 audit(1513981534.311:8): avc: denied { map } for pid=3149 comm="syz-execprog" path="/root/syzkaller-shm252464087" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 22.390142] audit: type=1400 audit(1513981534.311:9): avc: denied { sys_admin } for pid=3154 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 22.471374] audit: type=1400 audit(1513981534.418:10): avc: denied { sys_chroot } for pid=3157 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 22.495844] audit: type=1400 audit(1513981534.422:11): avc: denied { prog_load } for pid=3158 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 22.518949] audit: type=1400 audit(1513981534.465:12): avc: denied { prog_run } for pid=3158 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 2017/12/22 22:25:39 executed programs: 507 2017/12/22 22:25:44 executed programs: 995 [ 33.382578] WARNING: CPU: 1 PID: 6411 at ./include/net/sock.h:1507 strp_data_ready+0x2b7/0x390 [ 33.391376] Kernel panic - not syncing: panic_on_warn set ... [ 33.391376] [ 33.398710] CPU: 1 PID: 6411 Comm: syz-executor0 Not tainted 4.15.0-rc4+ #234 [ 33.405955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.415277] Call Trace: [ 33.417849] dump_stack+0x194/0x257 [ 33.421449] ? arch_local_irq_restore+0x53/0x53 [ 33.426089] ? vsnprintf+0x1ed/0x1900 [ 33.429864] panic+0x1e4/0x41c [ 33.433029] ? refcount_error_report+0x214/0x214 [ 33.437752] ? show_regs_print_info+0x18/0x18 [ 33.442219] ? __warn+0x1c1/0x200 [ 33.445644] ? strp_data_ready+0x2b7/0x390 [ 33.449845] __warn+0x1dc/0x200 [ 33.453091] ? strp_data_ready+0x2b7/0x390 [ 33.457294] report_bug+0x211/0x2d0 [ 33.460893] fixup_bug.part.11+0x37/0x80 [ 33.464922] do_error_trap+0x2d7/0x3e0 [ 33.468780] ? math_error+0x400/0x400 [ 33.472548] ? check_noncircular+0x20/0x20 [ 33.476760] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.481575] do_invalid_op+0x1b/0x20 [ 33.485257] invalid_op+0x22/0x40 [ 33.488675] RIP: 0010:strp_data_ready+0x2b7/0x390 [ 33.493482] RSP: 0018:ffff8801d8b27800 EFLAGS: 00010293 [ 33.498812] RAX: ffff8801d8464700 RBX: ffff8801d84a9c48 RCX: ffffffff84ac91d7 [ 33.506060] RDX: 0000000000000000 RSI: ffff8801d86891a0 RDI: ffffffff860e39a0 [ 33.513295] RBP: ffff8801d8b27820 R08: 1ffff1003b164e45 R09: 1ffffffff0d6a9c1 [ 33.520533] R10: ffff8801d8b276e8 R11: ffffed003b164e30 R12: ffff8801d8689100 [ 33.527768] R13: ffff8801d84a9c50 R14: ffff8801d8b27988 R15: ffff8801d8689100 [ 33.535025] ? strp_data_ready+0x2b7/0x390 [ 33.539237] psock_data_ready+0x56/0x70 [ 33.543182] unix_dgram_sendmsg+0xa72/0x1600 [ 33.547572] ? unix_shutdown+0x870/0x870 [ 33.551619] ? security_socket_sendmsg+0x89/0xb0 [ 33.556343] ? unix_shutdown+0x870/0x870 [ 33.560375] sock_sendmsg+0xca/0x110 [ 33.564061] sock_write_iter+0x31a/0x5d0 [ 33.568090] ? sock_sendmsg+0x110/0x110 [ 33.572039] ? bpf_fd_pass+0x280/0x280 [ 33.575898] ? __might_sleep+0x6c/0x190 [ 33.579844] do_iter_readv_writev+0x525/0x7f0 [ 33.584310] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 33.589039] ? rw_verify_area+0xe5/0x2b0 [ 33.593073] do_iter_write+0x154/0x540 [ 33.596928] ? dup_iter+0x260/0x260 [ 33.600520] ? __lock_is_held+0xb6/0x140 [ 33.604557] vfs_writev+0x18a/0x340 [ 33.608151] ? __fget_light+0x297/0x380 [ 33.612094] ? vfs_iter_write+0xb0/0xb0 [ 33.616036] ? get_unused_fd_flags+0x190/0x190 [ 33.620594] ? sock_alloc_file+0x2a6/0x560 [ 33.624798] ? sock_release+0x1e0/0x1e0 [ 33.628741] ? __fdget_pos+0x130/0x190 [ 33.632597] ? __fdget_raw+0x20/0x20 [ 33.636276] ? init_peercred+0x11e/0x1e0 [ 33.640310] do_writev+0xfc/0x2a0 [ 33.643728] ? do_writev+0xfc/0x2a0 [ 33.647326] ? vfs_writev+0x340/0x340 [ 33.651094] ? entry_SYSCALL_64_fastpath+0x5/0x96 [ 33.655905] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.660897] SyS_writev+0x27/0x30 [ 33.664342] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 33.669066] RIP: 0033:0x452ac9 [ 33.672223] RSP: 002b:00007ff71e5a5c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000014 [ 33.679897] RAX: ffffffffffffffda RBX: 00007ff71e5a6700 RCX: 0000000000452ac9 [ 33.687134] RDX: 0000000000000001 RSI: 0000000020d33000 RDI: 0000000000000003 [ 33.694371] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.703869] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 [ 33.711366] R13: 0000000000a2f7ef R14: 00007ff71e5a69c0 R15: 0000000000000000 [ 33.719519] Dumping ftrace buffer: [ 33.723101] (ftrace buffer empty) [ 33.726787] Kernel Offset: disabled [ 33.730646] Rebooting in 86400 seconds..