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-3,10.128.0.10' (ECDSA) to the list of known hosts. 2017/10/03 17:36:45 parsed 1 programs 2017/10/03 17:36:45 executed programs: 0 syzkaller login: [ 71.048999] kasan: CONFIG_KASAN_INLINE enabled [ 71.049710] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 71.050757] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 71.051666] Dumping ftrace buffer: [ 71.052143] (ftrace buffer empty) [ 71.052640] Modules linked in: [ 71.053120] CPU: 0 PID: 4034 Comm: syz-executor0 Not tainted 4.9.52-g291d968 #56 [ 71.054105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.055335] task: ffff8801cf028000 task.stack: ffff8801d1b20000 [ 71.056131] RIP: 0010:[] [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 71.057424] RSP: 0018:ffff8801d1b27b20 EFLAGS: 00010202 [ 71.058144] RAX: 1ffff1003a46886d RBX: ffff8801d2344358 RCX: 0000000000000001 [ 71.059095] RDX: 0000000000000008 RSI: 0000000000000000 RDI: ffff8801d14940f4 [ 71.060044] RBP: ffff8801d1b27b70 R08: ffffed0039c8e270 R09: ffff8801ce471360 [ 71.060995] R10: 0000000000000005 R11: ffffed0039c8e270 R12: 0000000000000001 [ 71.061947] R13: 0000000000000008 R14: 0000000000000000 R15: dffffc0000000000 [ 71.062923] FS: 00007f0704252700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 71.063998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.064782] CR2: 00007f0704251db8 CR3: 00000001cfcdc000 CR4: 00000000001406f0 [ 71.065732] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.066681] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.067633] Stack: [ 71.067927] ffff8801d2344370 ffffed003a46886b ffffed003a46886e ffff8801d2344368 [ 71.069069] ffff8801d14940d8 ffff8801d2344340 0000000000000000 0000000000000000 [ 71.076889] 0000000000000000 ffff8801d2344438 ffff8801d1b27bb0 ffffffff82662295 [ 71.084833] Call Trace: [ 71.087386] [] sg_finish_rem_req+0x2b5/0x340 [ 71.093413] [] sg_read+0x91c/0x1400 [ 71.098662] [] ? do_futex+0x3e8/0x1640 [ 71.104166] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 71.110803] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 71.117782] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 71.124412] [] __vfs_read+0x103/0x670 [ 71.129827] [] ? __kernel_write+0x340/0x340 [ 71.135765] [] ? fsnotify+0x86/0xf30 [ 71.141093] [] ? fsnotify+0xf30/0xf30 [ 71.146508] [] ? avc_policy_seqno+0x9/0x20 [ 71.152357] [] ? selinux_file_permission+0x82/0x460 [ 71.158985] [] ? security_file_permission+0x89/0x1e0 [ 71.165703] [] ? rw_verify_area+0xe5/0x2b0 [ 71.171553] [] vfs_read+0x107/0x330 [ 71.176795] [] SyS_read+0xd9/0x1b0 [ 71.181957] [] ? vfs_copy_file_range+0x680/0x680 [ 71.188328] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 71.194874] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 71.201415] 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 [ 71.227741] RIP [] sg_remove_scat.isra.20+0x17b/0x2d0 [ 71.234663] RSP [ 71.238342] ---[ end trace 5157c6502c56beff ]--- [ 71.243120] Kernel panic - not syncing: Fatal exception [ 71.248487] Dumping ftrace buffer: [ 71.251995] (ftrace buffer empty) [ 71.255673] Kernel Offset: disabled [ 71.259265] Rebooting in 86400 seconds..