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-9,10.128.15.218' (ECDSA) to the list of known hosts. 2017/10/12 00:02:42 parsed 1 programs 2017/10/12 00:02:42 executed programs: 0 2017/10/12 00:02:47 executed programs: 619 2017/10/12 00:02:52 executed programs: 1228 2017/10/12 00:02:57 executed programs: 1831 2017/10/12 00:03:02 executed programs: 2444 2017/10/12 00:03:07 executed programs: 3016 2017/10/12 00:03:12 executed programs: 3554 2017/10/12 00:03:17 executed programs: 4151 2017/10/12 00:03:22 executed programs: 4733 syzkaller login: INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes 2017/10/12 00:03:27 executed programs: 5272 [ 108.954345] kasan: CONFIG_KASAN_INLINE enabled [ 108.959229] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 108.966615] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 108.972828] Dumping ftrace buffer: [ 108.976339] (ftrace buffer empty) [ 108.980019] Modules linked in: [ 108.983300] CPU: 0 PID: 13180 Comm: syz-executor0 Not tainted 4.9.54-g34e23de #62 [ 108.990905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 109.000226] task: ffff8801d8fd6000 task.stack: ffff8801d4ef0000 [ 109.006247] RIP: 0010:[] [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 109.015523] RSP: 0018:ffff8801d4ef7b20 EFLAGS: 00010202 [ 109.020935] RAX: 1ffff10039f8b44d RBX: ffff8801cfc5a258 RCX: 0000000000000002 [ 109.028170] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8801cef6001c [ 109.035405] RBP: ffff8801d4ef7b70 R08: ffffed003a4c7390 R09: ffff8801d2639c60 [ 109.042640] R10: 0000000000000005 R11: ffffed003a4c7390 R12: 0000000000000002 [ 109.049875] R13: 0000000000000010 R14: 0000000000000000 R15: dffffc0000000000 [ 109.057112] FS: 00007f894e947700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 109.065304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.071151] CR2: 00007fb8e5ca0000 CR3: 00000001ce255000 CR4: 00000000001406f0 [ 109.078388] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.085625] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.092858] Stack: [ 109.094976] ffff8801cfc5a270 ffffed0039f8b44b ffffed0039f8b44e ffff8801cfc5a268 [ 109.102931] ffff8801cef60000 ffff8801cfc5a240 0000000000000000 0000000000000000 [ 109.110885] 0000000000000000 ffff8801cfc5a338 ffff8801d4ef7bb0 ffffffff82662b75 [ 109.118837] Call Trace: [ 109.121393] [] sg_finish_rem_req+0x2b5/0x340 [ 109.127414] [] sg_read+0x91c/0x1400 [ 109.132659] [] ? do_futex+0x3e8/0x1640 [ 109.138161] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 109.144794] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 109.151774] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 109.158406] [] __vfs_read+0x103/0x670 [ 109.163822] [] ? __kernel_write+0x340/0x340 [ 109.169760] [] ? fsnotify+0x86/0xf30 [ 109.175090] [] ? fsnotify+0xf30/0xf30 [ 109.180506] [] ? avc_policy_seqno+0x9/0x20 [ 109.186355] [] ? selinux_file_permission+0x82/0x460 [ 109.192989] [] ? security_file_permission+0x89/0x1e0 [ 109.199706] [] ? rw_verify_area+0xe5/0x2b0 [ 109.205560] [] vfs_read+0x107/0x330 [ 109.210802] [] SyS_read+0xd9/0x1b0 [ 109.215957] [] ? vfs_copy_file_range+0x680/0x680 [ 109.222326] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 109.228874] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 109.235414] Code: 45 b8 eb 3e e8 67 82 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 [ 109.261778] RIP [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 109.268712] RSP [ 109.272496] ---[ end trace 1c86fffba7e859c8 ]--- [ 109.277252] Kernel panic - not syncing: Fatal exception [ 109.283006] Dumping ftrace buffer: [ 109.286513] (ftrace buffer empty) [ 109.290190] Kernel Offset: disabled [ 109.293782] Rebooting in 86400 seconds..