INIT: Id "1" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 119.388469] sg_write: data in/out 822404280/68 bytes for SCSI command 0x12-- guessing data in; [ 119.388469] program syzkaller552331 not setting count and/or reply_len properly [ 119.390839] sg_write: data in/out 822404280/68 bytes for SCSI command 0x12-- guessing data in; [ 119.390839] program syzkaller552331 not setting count and/or reply_len properly [ 119.434952] kasan: CONFIG_KASAN_INLINE enabled [ 119.434954] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 119.434962] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 119.434966] Dumping ftrace buffer: [ 119.434968] (ftrace buffer empty) [ 119.434971] Modules linked in: [ 119.434976] CPU: 1 PID: 3398 Comm: syzkaller552331 Not tainted 4.9.73-gf3f3457 #11 [ 119.434979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 119.434982] task: ffff8801c9a64800 task.stack: ffff8801c7848000 [ 119.434993] RIP: 0010:[] [] __free_pages+0x21/0x80 [ 119.434995] RSP: 0018:ffff8801c784f990 EFLAGS: 00010a07 [ 119.434997] RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b [ 119.434999] RDX: 1bd5a9d5a0000003 RSI: 0000000000000000 RDI: dead4ead0000001c [ 119.435002] RBP: ffff8801c784f9a0 R08: ffffed00391e2e70 R09: ffff8801c8f17360 [ 119.435004] R10: 0000000000000005 R11: ffffed00391e2e70 R12: 0000000000000004 [ 119.435006] R13: 0000000000000020 R14: ffff8801c6a48000 R15: dffffc0000000000 [ 119.435009] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f77ceb40 [ 119.435011] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 119.435013] CR2: 0000000020544f60 CR3: 00000001cd4db000 CR4: 00000000001406e0 [ 119.435018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 119.435020] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 119.435021] Stack: [ 119.435027] 0000000000000000 ffff8801c6a48158 ffff8801c784fa00 ffffffff82664fc1 [ 119.435032] ffff8801c6a48170 ffffed0038d4902b ffffed0038d4902e ffff8801c6a48168 [ 119.435036] dead4ead00000000 ffff8801c6a48140 0000000000000000 0000000000000000 [ 119.435037] Call Trace: [ 119.435044] [] sg_remove_scat.isra.19+0x1c1/0x2d0 [ 119.435047] [] sg_finish_rem_req+0x2b5/0x340 [ 119.435051] [] sg_read+0xa1c/0x1440 [ 119.435055] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 119.435060] [] ? fsnotify+0xf30/0xf30 [ 119.435067] [] ? avc_policy_seqno+0x9/0x20 [ 119.435073] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 119.435077] [] ? security_file_permission+0x89/0x1e0 [ 119.435080] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 119.435084] [] ? sg_proc_seq_show_debug+0xd10/0xd10 [ 119.435088] [] compat_do_readv_writev+0x522/0x760 [ 119.435092] [] ? do_pwritev+0x1a0/0x1a0 [ 119.435099] [] ? _raw_spin_unlock+0x2c/0x50 [ 119.435106] [] ? check_preemption_disabled+0x3b/0x200 [ 119.435110] [] ? __fget+0x201/0x3a0 [ 119.435113] [] ? __fget+0x228/0x3a0 [ 119.435116] [] ? __fget+0x47/0x3a0 [ 119.435120] [] compat_readv+0xe3/0x150 [ 119.435124] [] do_compat_readv+0xf4/0x1d0 [ 119.435128] [] ? compat_readv+0x150/0x150 [ 119.435132] [] compat_SyS_readv+0x26/0x30 [ 119.435136] [] ? SyS_pwritev2+0x80/0x80 [ 119.435141] [] do_fast_syscall_32+0x2f7/0x890 [ 119.435145] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 119.435149] [] entry_SYSENTER_compat+0x51/0x60 [ 119.435202] Code: e9 27 fc ff ff 0f 1f 44 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 [ 119.435207] RIP [] __free_pages+0x21/0x80 [ 119.435208] RSP [ 119.435214] ---[ end trace 73e549c460224e75 ]--- [ 119.435216] Kernel panic - not syncing: Fatal exception [ 119.435577] Dumping ftrace buffer: [ 119.435579] (ftrace buffer empty) [ 119.435581] Kernel Offset: disabled [ 119.815127] Rebooting in 86400 seconds..