INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-android-49-kasan-gce-0,10.128.0.41' (ECDSA) to the list of known hosts. 2017/12/03 04:14:42 parsed 1 programs 2017/12/03 04:14:42 executed programs: 0 syzkaller login: [ 19.536956] kasan: CONFIG_KASAN_INLINE enabled [ 19.537695] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 19.538668] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 19.539488] Dumping ftrace buffer: [ 19.539978] (ftrace buffer empty) [ 19.540475] Modules linked in: [ 19.540947] CPU: 0 PID: 3264 Comm: syz-executor0 Not tainted 4.9.66-gb763480 #103 [ 19.541948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.543164] task: ffff8801d4ea1800 task.stack: ffff8801d2320000 [ 19.543998] RIP: 0010:[] [] sidtab_search_core+0x6a/0x320 [ 19.545232] RSP: 0018:ffff8801d2327a18 EFLAGS: 00010202 [ 19.545981] RAX: dffffc0000000000 RBX: 0000000000000008 RCX: 1ffff1003a464f18 [ 19.546946] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffffffff8593e620 [ 19.547897] RBP: ffff8801d2327a48 R08: ffffffff85393700 R09: ffffffff83a5e040 [ 19.548864] R10: 0000000000000001 R11: ffff8801d4ea1800 R12: 0000000000000001 [ 19.549854] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801ce434cf0 [ 19.550817] FS: 00007fb26cda1700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 19.551889] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.552660] CR2: 00000000004d5638 CR3: 00000001d5eec000 CR4: 00000000001406f0 [ 19.553623] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.554573] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.555523] Stack: [ 19.555817] 0000000000000001 ffffffff8593e620 0000000000000001 0000000000000001 [ 19.556944] 0000000000000001 ffff8801ce434cf0 ffff8801d2327a68 ffffffff81c0587f [ 19.564245] dffffc0000000000 ffff8801ce434cf4 ffff8801d2327b90 ffffffff81c239a2 [ 19.572193] Call Trace: [ 19.574749] [] sidtab_search+0x1f/0x30 [ 19.580257] [] security_bounded_transition+0xb2/0x3a0 [ 19.587063] [] ? security_validate_transition+0x60/0x60 [ 19.594041] [] ? memcpy+0x45/0x50 [ 19.599107] [] ? kmemdup+0x44/0x50 [ 19.604263] [] ? selinux_cred_prepare+0x78/0xa0 [ 19.610551] [] ? current_is_single_threaded+0x85/0x4e0 [ 19.617449] [] ? security_prepare_creds+0x89/0xb0 [ 19.623938] [] selinux_setprocattr+0x8b0/0xa80 [ 19.630134] [] ? ptrace_parent_sid+0x400/0x400 [ 19.636330] [] ? mutex_lock_nested+0x870/0x870 [ 19.642524] [] security_setprocattr+0x8d/0xc0 [ 19.648634] [] proc_pid_attr_write+0x1bd/0x270 [ 19.654829] [] ? proc_coredump_filter_read+0x1e0/0x1e0 [ 19.661725] [] __vfs_write+0x103/0x680 [ 19.667225] [] ? do_iter_readv_writev+0x400/0x400 [ 19.673682] [] ? __lock_is_held+0xa1/0xf0 [ 19.679441] [] ? __lock_is_held+0xa1/0xf0 [ 19.685206] [] ? rcu_read_lock_sched_held+0x103/0x120 [ 19.692008] [] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 19.698554] [] ? __sb_start_write+0x14a/0x310 [ 19.704663] [] vfs_write+0x189/0x530 [ 19.709993] [] SyS_write+0xd9/0x1b0 [ 19.715232] [] ? SyS_read+0x1b0/0x1b0 [ 19.720648] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 19.727456] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 19.734004] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 19.740543] Code: ea 03 41 83 e4 7f 80 3c 02 00 0f 85 7d 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 33 4d 63 e4 4b 8d 1c e6 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 41 02 00 00 48 8b 1b 48 85 db 0f 84 8b 00 00 [ 19.766870] RIP [] sidtab_search_core+0x6a/0x320 [ 19.773352] RSP [ 19.777009] ---[ end trace 45765276d79af750 ]--- [ 19.781739] Kernel panic - not syncing: Fatal exception [ 19.787544] Dumping ftrace buffer: [ 19.791051] (ftrace buffer empty) [ 19.794723] Kernel Offset: disabled [ 19.798311] Rebooting in 86400 seconds..