kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4921 Comm: syz-executor0 Not tainted 4.9.56-g5c73594 #66 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cf3ae000 task.stack: ffff8801cf3f8000 RIP: 0010:[] [] sg_remove_scat.isra.20+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP: 0018:ffff8801cf3ffb20 EFLAGS: 00010202 RAX: 1ffff10039e7d02d RBX: ffff8801cf3e8158 RCX: 0000000000000002 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffff8801cf3cc21c RBP: ffff8801cf3ffb70 R08: ffffed0039af1a28 R09: ffff8801cd78d120 R10: 0000000000000005 R11: ffffed0039af1a28 R12: 0000000000000002 R13: 0000000000000010 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007efdc1aec700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efdc1aebdb8 CR3: 00000001cd791000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff8801cf3e8170 ffffed0039e7d02b ffffed0039e7d02e ffff8801cf3e8168 ffff8801cf3cc200 ffff8801cf3e8140 0000000000000000 0000000000000000 0000000000000000 ffff8801cf3e8238 ffff8801cf3ffbb0 ffffffff82662c35 Call Trace: [] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836 [] sg_read+0x91c/0x1400 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x107/0x330 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Code: 45 b8 eb 3e e8 17 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 RIP [] sg_remove_scat.isra.20+0x17b/0x2d0 drivers/scsi/sg.c:1949 RSP ---[ end trace 4518b1faa10a553c ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..