On Fri, Oct 27, 2017 at 10:19 AM, syzbot <bot+f7b556d1766502a69d85071d2ff08bd87be53d0f@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzkaller hit the following crash on > 91dfed74eabcdae9378131546c446442c29bf769 > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is attached. > C reproducer is attached > syzkaller reproducer is attached. See https://goo.gl/kgGztJ > for information about syzkaller reproducers This also happened on more recent commits, including linux-next 36ef71cae353f88fd6e095e2aaa3e5953af1685d (Oct 19): ------------[ cut here ]------------ WARNING: CPU: 2 PID: 3514 at drivers/ata/libata-core.c:5395 ata_qc_issue+0x512/0xe40 drivers/ata/libata-core.c:5394 Kernel panic - not syncing: panic_on_warn set ... CPU: 2 PID: 3514 Comm: syz-executor3 Not tainted 4.14.0-rc5-next-20171018+ #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1c4/0x1e0 kernel/panic.c:546 report_bug+0x211/0x2d0 lib/bug.c:183 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:905 RIP: 0010:ata_qc_issue+0x512/0xe40 drivers/ata/libata-core.c:5394 RSP: 0018:ffff880050736f60 EFLAGS: 00010016 RAX: 0000000000010000 RBX: 0000000000000002 RCX: ffffffff837472d2 RDX: 0000000000000531 RSI: ffffc900018d6000 RDI: ffff88003c0d0290 RBP: ffff880050737068 R08: 0000000000000028 R09: 0000000000000000 R10: 0000000000000004 R11: ffffed000781a046 R12: 0000000000000000 R13: ffff88003c0d0248 R14: ffff88003c0d0080 R15: ffff88003c0d01f8 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:1713 scsi_request_fn+0xdf0/0x1e50 drivers/scsi/scsi_lib.c:1851 __blk_run_queue_uncond block/blk-core.c:376 [inline] __blk_run_queue+0x1a6/0x370 block/blk-core.c:396 __elv_add_request+0x497/0xce0 block/elevator.c:673 blk_execute_rq_nowait+0x1f8/0x310 block/blk-exec.c:77 blk_execute_rq+0x109/0x1c0 block/blk-exec.c:101 sg_scsi_ioctl+0x38b/0x750 block/scsi_ioctl.c:508 sg_ioctl+0x1f08/0x2d90 drivers/scsi/sg.c:1078 vfs_ioctl fs/ioctl.c:45 [inline] do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:685 SYSC_ioctl fs/ioctl.c:700 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x447c89 RSP: 002b:00007f28dd18ebd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f28dd18f6cc RCX: 0000000000447c89 RDX: 000000002004bff8 RSI: 0000000000000001 RDI: 0000000000000013 RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000300 R14: 00000000006e43a0 R15: 00007f28dd18f700 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds.. > WARNING: CPU: 1 PID: 2909 at drivers/ata/libata-core.c:5391 > ata_qc_issue+0x519/0xea0 drivers/ata/libata-core.c:5390 > Kernel panic - not syncing: panic_on_warn set ... > > CPU: 1 PID: 2909 Comm: syzkaller668320 Not tainted 4.13.0-rc4-next-20170811 > #1 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:16 [inline] > dump_stack+0x194/0x257 lib/dump_stack.c:52 > panic+0x1e4/0x417 kernel/panic.c:180 > __warn+0x1c4/0x1d9 kernel/panic.c:541 > report_bug+0x211/0x2d0 lib/bug.c:183 > fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:190 > do_trap_no_signal arch/x86/kernel/traps.c:224 [inline] > do_trap+0x260/0x390 arch/x86/kernel/traps.c:273 > do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:310 > do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:323 > invalid_op+0x1e/0x30 arch/x86/entry/entry_64.S:930 > RIP: 0010:ata_qc_issue+0x519/0xea0 drivers/ata/libata-core.c:5390 > RSP: 0018:ffff880069de68f8 EFLAGS: 00010097 > RAX: ffff88006c840580 RBX: 0000000000000002 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: ffff88006b8b2500 RDI: ffff88006b8b0290 > RBP: ffff880069de6a10 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000004 R11: ffffed000d716046 R12: 0000000000000000 > R13: ffff88006b8b238c R14: ffff88006b8b01f8 R15: ffff88006b8b0080 > ata_scsi_translate+0x34a/0x5e0 drivers/ata/libata-scsi.c:2023 > __ata_scsi_queuecmd drivers/ata/libata-scsi.c:4325 [inline] > ata_scsi_queuecmd+0x2ae/0x6b0 drivers/ata/libata-scsi.c:4374 > scsi_dispatch_cmd+0x432/0xb60 drivers/scsi/scsi_lib.c:1686 > scsi_queue_rq+0x155a/0x1e00 drivers/scsi/scsi_lib.c:1962 > blk_mq_dispatch_rq_list+0x8bc/0x1720 block/blk-mq.c:1073 > blk_mq_sched_dispatch_requests+0x752/0xb40 block/blk-mq-sched.c:147 > __blk_mq_run_hw_queue+0x1aa/0x280 block/blk-mq.c:1155 > __blk_mq_delay_run_hw_queue+0x175/0x1b0 block/blk-mq.c:1203 > blk_mq_run_hw_queue+0x1e/0x30 block/blk-mq.c:1224 > blk_mq_sched_insert_request+0x275/0x890 block/blk-mq-sched.c:386 > blk_execute_rq_nowait+0x16d/0x310 block/blk-exec.c:64 > sg_common_write.isra.17+0xf80/0x1c10 drivers/scsi/sg.c:806 > sg_write+0x7a0/0xc90 drivers/scsi/sg.c:677 > __vfs_write+0xef/0x970 fs/read_write.c:468 > vfs_write+0x189/0x510 fs/read_write.c:518 > SYSC_write fs/read_write.c:565 [inline] > SyS_write+0xef/0x220 fs/read_write.c:557 > entry_SYSCALL_64_fastpath+0x1f/0xbe > RIP: 0033:0x439059 > RSP: 002b:00007ffe8db065b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000001 > RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000439059 > RDX: 000000000000002a RSI: 0000000020010000 RDI: 0000000000000003 > RBP: 0000000000000086 R08: 00000000000000fe R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 > R13: 0000000000401cb0 R14: 0000000000401d40 R15: 0000000000000000 > Dumping ftrace buffer: > (ftrace buffer empty) > Kernel Offset: disabled > Rebooting in 86400 seconds.. > > > --- > This bug is generated by a dumb bot. It may contain errors. > See https://goo.gl/tpsmEJ for details. > Direct all questions to syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. > Once a fix for this bug is committed, please reply to this email with: > #syz fix: exact-commit-title > To mark this as a duplicate of another syzbot report, please reply with: > #syz dup: exact-subject-of-another-report > If it's a one-off invalid bug report, please reply with: > #syz invalid > Note: if the crash happens again, it will cause creation of a new bug > report. > > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/001a11425956f5f3d0055c82f08d%40google.com. > For more options, visit https://groups.google.com/d/optout. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
