------------[ cut here ]------------
WARNING: CPU: 2 PID: 5833 at drivers/ata/libata-core.c:5398 ata_qc_issue+0x512/0xe40 drivers/ata/libata-core.c:5397
Kernel panic - not syncing: panic_on_warn set ...

CPU: 2 PID: 5833 Comm: syz-executor3 Not tainted 4.14.0-rc7-next-20171103+ #10
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1c4/0x1e0 kernel/panic.c:546
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:177
 do_trap_no_signal arch/x86/kernel/traps.c:211 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:260
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:297
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:310
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:906
RIP: 0010:ata_qc_issue+0x512/0xe40 drivers/ata/libata-core.c:5397
RSP: 0018:ffff88003bd8ee80 EFLAGS: 00010016
RAX: 0000000000010000 RBX: 000000000000000a RCX: ffffffff8395cf62
RDX: 00000000000007f7 RSI: ffffc90002f83000 RDI: ffff88003b460264
RBP: ffff88003bd8ef88 R08: ffff88003b460274 R09: ffff88003b460278
R10: 0000000000000004 R11: ffffed000768c04c R12: 0000000000000000
R13: ffff88003b460258 R14: ffff88003b460080 R15: ffff88003b460208
 ata_scsi_translate+0x34a/0x5e0 drivers/ata/libata-scsi.c:2024
 __ata_scsi_queuecmd drivers/ata/libata-scsi.c:4326 [inline]
 ata_scsi_queuecmd+0x2ae/0x6b0 drivers/ata/libata-scsi.c:4375
 scsi_dispatch_cmd+0x432/0xb60 drivers/scsi/scsi_lib.c:1711
 scsi_request_fn+0xdf0/0x1e50 drivers/scsi/scsi_lib.c:1849
 __blk_run_queue_uncond block/blk-core.c:377 [inline]
 __blk_run_queue+0x1a6/0x370 block/blk-core.c:397
 blk_execute_rq_nowait+0x200/0x310 block/blk-exec.c:78
 sg_common_write.isra.17+0xbf8/0x1cb0 drivers/scsi/sg.c:806
 sg_new_write.isra.20+0x5c6/0x830 drivers/scsi/sg.c:746
 sg_ioctl+0x1bed/0x2da0 drivers/scsi/sg.c:890
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x447c89
RSP: 002b:00007f8872eafbd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8872eb06cc RCX: 0000000000447c89
RDX: 0000000020007000 RSI: 0000000000002285 RDI: 0000000000000017
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000068d0 R14: 00000000006ea970 R15: 00007f8872eb0700
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..