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-3,10.128.0.60' (ECDSA) to the list of known hosts. 2017/10/05 15:47:49 parsed 1 programs 2017/10/05 15:47:49 executed programs: 0 syzkaller login: [ 45.974413] kasan: CONFIG_KASAN_INLINE enabled [ 45.975099] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 45.976064] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 45.976892] Dumping ftrace buffer: [ 45.977364] (ftrace buffer empty) [ 45.977857] Modules linked in: [ 45.978322] CPU: 1 PID: 3583 Comm: syz-executor0 Not tainted 4.9.52-g3217ccc #58 [ 45.979336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.980575] task: ffff8801c95d4800 task.stack: ffff8801c9d90000 [ 45.981383] RIP: 0010:[] [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 45.982623] RSP: 0018:ffff8801c9d97b20 EFLAGS: 00010202 [ 45.983352] RAX: 1ffff1003928344d RBX: ffff8801c941a258 RCX: 0000000000000001 [ 45.984312] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff8801d1b9ed74 [ 45.985263] RBP: ffff8801c9d97b70 R08: ffffed003996c390 R09: ffff8801ccb61c60 [ 45.986259] R10: 0000000000000005 R11: ffffed003996c390 R12: 0000000000000001 [ 45.987210] R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000 [ 45.988210] FS: 00007f74c7eb4700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 45.989296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.990079] CR2: 0000000020603000 CR3: 00000001cdcb8000 CR4: 00000000001406e0 [ 45.991110] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.992060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.993020] Stack: [ 45.993318] ffff8801c941a270 ffffed003928344b ffffed003928344e ffff8801c941a268 [ 45.994441] ffff8801d1b9ed58 ffff8801c941a240 0000000000000000 0000000000000000 [ 46.002892] 0000000000000000 ffff8801c941a338 ffff8801c9d97bb0 ffffffff82662295 [ 46.010845] Call Trace: [ 46.013395] [] sg_finish_rem_req+0x2b5/0x340 [ 46.019416] [] sg_read+0x91c/0x1400 [ 46.024659] [] ? do_futex+0x3e8/0x1640 [ 46.030157] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 46.036789] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.043768] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 46.050397] [] __vfs_read+0x103/0x670 [ 46.055810] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 46.062783] [] ? __kernel_write+0x340/0x340 [ 46.068716] [] ? fsnotify+0x86/0xf30 [ 46.074042] [] ? fsnotify+0xf30/0xf30 [ 46.079455] [] ? avc_policy_seqno+0x9/0x20 [ 46.085302] [] ? selinux_file_permission+0x82/0x460 [ 46.091934] [] ? security_file_permission+0x89/0x1e0 [ 46.098650] [] ? rw_verify_area+0xe5/0x2b0 [ 46.104497] [] vfs_read+0x107/0x330 [ 46.109736] [] SyS_read+0xd9/0x1b0 [ 46.114887] [] ? vfs_copy_file_range+0x680/0x680 [ 46.121254] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 46.127797] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 46.134338] Code: 45 b8 eb 3e e8 47 88 d0 fe 48 8b 45 c8 48 c1 e8 03 42 80 3c 38 00 0f 85 3a 01 00 00 4c 8b 73 10 4b 8d 14 2e 48 89 d1 48 c1 e9 03 <42> 80 3c 39 00 0f 85 0b 01 00 00 48 8b 12 49 83 c5 08 48 85 d2 [ 46.160614] RIP [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 46.167533] RSP [ 46.171284] ---[ end trace c3c3b6da3f122e1b ]--- [ 46.176015] Kernel panic - not syncing: Fatal exception [ 46.181678] Dumping ftrace buffer: [ 46.185189] (ftrace buffer empty) [ 46.188863] Kernel Offset: disabled [ 46.192455] Rebooting in 86400 seconds..