INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-android-49-kasan-gce-0,10.128.0.5' (ECDSA) to the list of known hosts. 2017/10/22 14:44:29 parsed 1 programs 2017/10/22 14:44:29 executed programs: 0 2017/10/22 14:44:34 executed programs: 504 2017/10/22 14:44:39 executed programs: 939 syzkaller login: [ 52.539082] kasan: CONFIG_KASAN_INLINE enabled [ 52.539778] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 52.545553] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 52.547257] Dumping ftrace buffer: [ 52.548148] (ftrace buffer empty) [ 52.548986] Modules linked in: [ 52.549476] CPU: 1 PID: 10989 Comm: syz-executor1 Not tainted 4.9.57-g9eaaf14 #69 [ 52.550880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.552131] task: ffff8801c9d3c800 task.stack: ffff8801c7330000 [ 52.552940] RIP: 0010:[] [] sg_read+0xcc1/0x1400 [ 52.554041] RSP: 0018:ffff8801c7337700 EFLAGS: 00010246 [ 52.554779] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000000c [ 52.555745] RDX: 0000000000000000 RSI: 0000000000000fdc RDI: ffff8801cf7b8170 [ 52.556720] RBP: ffff8801c7337808 R08: 0000000000000000 R09: ffffed003848d585 [ 52.557695] R10: 0000000000000005 R11: ffffed003848d584 R12: 0000000000001000 [ 52.558669] R13: 0000000000000000 R14: ffff8801c246ac00 R15: ffff8801cf7b8140 [ 52.562447] FS: 00007fd84d07e700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 52.570648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.576507] CR2: 00007ff31fab52e0 CR3: 00000001ce36a000 CR4: 00000000001406e0 [ 52.581897] kasan: CONFIG_KASAN_INLINE enabled [ 52.581899] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 52.595619] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.602856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.610093] Stack: [ 52.612207] 0000000000000100 ffffea000741a600 ffff8801cf7b8158 ffffea0000000fdc [ 52.620165] ffff8801c7337770 ffff8801cf7b8168 0000000000001000 0000000000000246 [ 52.628113] ffff8801d1bfe500 1ffff10038e66eec ffff8801c6736000 ffff8801c6736024 [ 52.636064] Call Trace: [ 52.638623] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 52.645256] [] ? fsnotify+0xf30/0xf30 [ 52.650673] [] ? avc_policy_seqno+0x9/0x20 [ 52.656524] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 52.663503] [] ? security_file_permission+0x89/0x1e0 [ 52.670218] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 52.676849] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 52.683485] [] do_readv_writev+0x520/0x750 [ 52.689333] [] ? vfs_write+0x4e0/0x4e0 [ 52.694836] [] ? kasan_unpoison_shadow+0x35/0x50 [ 52.701208] [] ? push_pipe+0x372/0x770 [ 52.706709] [] ? sanity+0x1ff/0x610 [ 52.711953] [] ? iov_iter_get_pages_alloc+0x2c7/0xf10 [ 52.718758] [] vfs_readv+0x84/0xc0 [ 52.723915] [] default_file_splice_read+0x43f/0x7a0 [ 52.730547] [] ? do_splice_direct+0x270/0x270 [ 52.736658] [] ? get_futex_key+0x1000/0x1000 [ 52.742679] [] ? save_stack+0xa3/0xd0 [ 52.748096] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.755075] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 52.762054] [] ? kasan_kmalloc+0xad/0xe0 [ 52.767732] [] ? security_file_permission+0x89/0x1e0 [ 52.774452] [] ? do_splice_direct+0x270/0x270 [ 52.780562] [] do_splice_to+0x10a/0x160 [ 52.786151] [] SyS_splice+0xf5f/0x1520 [ 52.791653] [] ? SyS_futex+0x22e/0x2d0 [ 52.797163] [] ? compat_SyS_vmsplice+0x240/0x240 [ 52.803534] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.810080] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 52.816620] Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 19 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5f 28 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 ed 06 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 [ 52.842995] RIP [] sg_read+0xcc1/0x1400 [ 52.848699] RSP [ 52.852300] general protection fault: 0000 [#2] PREEMPT SMP KASAN [ 52.858520] Dumping ftrace buffer: [ 52.860547] ---[ end trace b61dc58fe85ef9b0 ]--- [ 52.860552] Kernel panic - not syncing: Fatal exception [ 52.872083] (ftrace buffer empty) [ 52.875762] Modules linked in: [ 52.879040] CPU: 0 PID: 11059 Comm: syz-executor4 Tainted: G D 4.9.57-g9eaaf14 #69 [ 52.887842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.897165] task: ffff8801d1378000 task.stack: ffff8801cfbd0000 [ 52.903186] RIP: 0010:[] [] __free_pages+0x21/0x80 [ 52.911416] RSP: 0018:ffff8801cfbd75f0 EFLAGS: 00010a07 [ 52.916831] RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: 1ffff100380c2423 [ 52.924068] RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c [ 52.931308] RBP: ffff8801cfbd7600 R08: ffffed00380c245a R09: ffffed00380c245a [ 52.938547] R10: 000000000000000b R11: ffffed00380c2459 R12: 0000000000000004 [ 52.945785] R13: 0000000000000020 R14: ffff8801c0612100 R15: dffffc0000000000 [ 52.953026] FS: 00007ff3eb170700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 52.961223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.967074] CR2: 0000000020327000 CR3: 00000001c6c20000 CR4: 00000000001406f0 [ 52.974314] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.981554] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.988792] Stack: [ 52.990912] ffff8801d1378000 ffff8801c0612258 ffff8801cfbd7660 ffffffff826601f1 [ 52.998874] ffff8801c0612270 ffffed00380c244b ffffed00380c244e ffff8801c0612268 [ 53.006838] dead4ead00000000 ffff8801c0612240 0000000000000000 0000000000000000 [ 53.014812] Call Trace: [ 53.017376] [] sg_remove_scat.isra.20+0x1c1/0x2d0 [ 53.023838] [] sg_finish_rem_req+0x2b5/0x340 [ 53.029862] [] sg_new_read.isra.21+0x356/0x3e0 [ 53.036060] [] ? sg_get_rq_mark+0x14d/0x190 [ 53.041998] [] sg_read+0x8a6/0x1400 [ 53.047245] [] ? __check_object_size+0x174/0x3a9 [ 53.053617] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 53.060254] [] ? fsnotify+0xf30/0xf30 [ 53.065673] [] ? avc_policy_seqno+0x9/0x20 [ 53.071526] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 53.078508] [] ? security_file_permission+0x89/0x1e0 [ 53.085227] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 53.091861] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 53.098496] [] do_readv_writev+0x520/0x750 [ 53.104348] [] ? vfs_write+0x4e0/0x4e0 [ 53.109859] [] ? kasan_unpoison_shadow+0x35/0x50 [ 53.116232] [] ? push_pipe+0x372/0x770 [ 53.121736] [] ? sanity+0x1ff/0x610 [ 53.126984] [] ? iov_iter_get_pages_alloc+0x2c7/0xf10 [ 53.133789] [] vfs_readv+0x84/0xc0 [ 53.138949] [] default_file_splice_read+0x43f/0x7a0 [ 53.145584] [] ? do_splice_direct+0x270/0x270 [ 53.151700] [] ? get_futex_key+0x1000/0x1000 [ 53.157728] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 53.164710] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 53.171693] [] ? __do_page_fault+0x61a/0xd70 [ 53.177721] [] ? security_file_permission+0x89/0x1e0 [ 53.184442] [] ? do_splice_direct+0x270/0x270 [ 53.190554] [] do_splice_to+0x10a/0x160 [ 53.196148] [] SyS_splice+0xf5f/0x1520 [ 53.201652] [] ? SyS_futex+0x22e/0x2d0 [ 53.207158] [] ? compat_SyS_vmsplice+0x240/0x240 [ 53.213533] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.220081] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 53.226623] Code: ff 66 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d [ 53.253181] RIP [] __free_pages+0x21/0x80 [ 53.259065] RSP [ 53.263115] Dumping ftrace buffer: [ 53.266633] (ftrace buffer empty) [ 53.270308] Kernel Offset: disabled [ 53.273898] Rebooting in 86400 seconds..