kasan: CONFIG_KASAN_INLINE enabled 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: 3330 Comm: syzkaller017576 Not tainted 4.9.72-gcb7518e #10 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801cd14b000 task.stack: ffff8801c8a68000 RIP: 0010:[] [] sg_read_oxfer drivers/scsi/sg.c:1976 [inline] RIP: 0010:[] [] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520 RSP: 0018:ffff8801c8a6fb60 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82667453 RDX: 0000000000000000 RSI: 00000000000000a6 RDI: ffff8801c8ac0170 RBP: ffff8801c8a6fc68 R08: 53054a2135708f0e R09: ffffed00392b6fe5 R10: 0000000000000005 R11: ffffed00392b6fe4 R12: 0000000000001000 R13: 0000000000000000 R14: ffff8801c95b7f00 R15: ffff8801c8ac0140 FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:000000000815f840 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000209f0000 CR3: 00000001c9723000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff826707c0 ffff8801c8a6fb90 ffff8801c8ac0158 00000000000000a6 ffffffff8156f270 ffff8801c8ac0168 00000000000000ca ffffffff81285913 ffff8801d153a500 1ffff1003914df78 0000000020185f36 0000000020185f5a Call Trace: [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8a 06 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 df 05 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 RIP [] sg_read_oxfer drivers/scsi/sg.c:1976 [inline] RIP [] sg_read+0xd0c/0x1440 drivers/scsi/sg.c:520 RSP ---[ end trace 7c75040768ed4d34 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..