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-4,10.128.0.42' (ECDSA) to the list of known hosts. 2017/10/07 14:17:39 parsed 1 programs 2017/10/07 14:17:39 executed programs: 0 syzkaller login: [ 45.664546] kasan: CONFIG_KASAN_INLINE enabled [ 45.665305] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 45.666305] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 45.667160] Dumping ftrace buffer: [ 45.667645] (ftrace buffer empty) [ 45.668140] Modules linked in: [ 45.668609] CPU: 1 PID: 4295 Comm: syz-executor0 Not tainted 4.9.53-g2b3a26c #60 [ 45.669627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.670845] task: ffff8801c98ab000 task.stack: ffff8801ca2e0000 [ 45.671642] RIP: 0010:[] [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 45.672885] RSP: 0018:ffff8801ca2e7b20 EFLAGS: 00010202 [ 45.673605] RAX: 1ffff1003945886d RBX: ffff8801ca2c4358 RCX: 0000000000000002 [ 45.674555] RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8801ca2c211c [ 45.675505] RBP: ffff8801ca2e7b70 R08: ffffed00392b1778 R09: ffff8801c958bba0 [ 45.676456] R10: 0000000000000005 R11: ffffed00392b1778 R12: 0000000000000002 [ 45.677411] R13: 0000000000000010 R14: 0000000000000000 R15: dffffc0000000000 [ 45.678381] FS: 00007f4347db2700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 45.679562] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.680399] CR2: 00000000202ecff1 CR3: 00000001c9628000 CR4: 00000000001406e0 [ 45.681381] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.682332] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.683325] Stack: [ 45.683639] ffff8801ca2c4370 ffffed003945886b ffffed003945886e ffff8801ca2c4368 [ 45.685020] ffff8801ca2c2100 ffff8801ca2c4340 0000000000000000 0000000000000000 [ 45.692971] 0000000000000000 ffff8801ca2c4438 ffff8801ca2e7bb0 ffffffff82662a75 [ 45.700935] Call Trace: [ 45.703489] [] sg_finish_rem_req+0x2b5/0x340 [ 45.709512] [] sg_read+0x91c/0x1400 [ 45.714756] [] ? do_futex+0x3e8/0x1640 [ 45.720259] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 45.726889] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 45.733867] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 45.740502] [] __vfs_read+0x103/0x670 [ 45.745942] [] ? __kernel_write+0x340/0x340 [ 45.751880] [] ? fsnotify+0x86/0xf30 [ 45.757210] [] ? fsnotify+0xf30/0xf30 [ 45.762628] [] ? avc_policy_seqno+0x9/0x20 [ 45.768481] [] ? selinux_file_permission+0x82/0x460 [ 45.775131] [] ? security_file_permission+0x89/0x1e0 [ 45.781858] [] ? rw_verify_area+0xe5/0x2b0 [ 45.787708] [] vfs_read+0x107/0x330 [ 45.792950] [] SyS_read+0xd9/0x1b0 [ 45.798105] [] ? vfs_copy_file_range+0x680/0x680 [ 45.804474] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 45.811021] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 45.817564] Code: 45 b8 eb 3e e8 67 83 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 [ 45.844102] RIP [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 45.851026] RSP [ 45.854736] ---[ end trace 5893c3b73180ec51 ]--- [ 45.859463] Kernel panic - not syncing: Fatal exception [ 45.865290] Dumping ftrace buffer: [ 45.868803] (ftrace buffer empty) [ 45.872480] Kernel Offset: disabled [ 45.876072] Rebooting in 86400 seconds..