https://bugzilla.kernel.org/show_bug.cgi?id=120371
Bug ID: 120371
Summary: UBSAN splat in drivers/scsi/scsi_devinfo.c:458:21
Product: IO/Storage
Version: 2.5
Kernel Version: 4.7.0-rc3
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: SCSI
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 220111
--> https://bugzilla.kernel.org/attachment.cgi?id=220111&action=edit
.config
While booting, UBSAN reports an index out of range use in
drivers/scsi/scsi_devinfo.c:458:21:
[ 2.226941]
================================================================================
[ 2.226944] UBSAN: Undefined behaviour in
/usr/local/src/kernel/linux-git/drivers/scsi/scsi_devinfo.c:458:21
[ 2.226945] index 8 is out of range for type 'char [8]'
[ 2.226948] CPU: 3 PID: 6 Comm: kworker/u16:0 Not tainted
4.7.0-rc3-00002-g44c5afa #1
[ 2.226948] Hardware name: Apple Inc. MacBookPro8,2/Mac-94245A3940C91C80,
BIOS MBP81.88Z.0047.B27.1201241646 01/24/12
[ 2.226955] Workqueue: events_unbound async_run_entry_fn
[ 2.226958] 000000000000000e ffff88026614fa50 ffffffff815c8665
ffffffff81190e52
[ 2.226961] ffff88026614fa78 0000000000000008 ffff88026614fa68
ffffffff8163e77d
[ 2.226963] ffffffff8263a560 ffff88026614fac0 ffffffff8163ee95
0000000000000286
[ 2.226963] Call Trace:
[ 2.226968] [<ffffffff815c8665>] dump_stack+0x68/0xa3
[ 2.226971] [<ffffffff81190e52>] ? down_trylock+0x32/0x60
[ 2.226975] [<ffffffff8163e77d>] ubsan_epilogue+0xd/0x40
[ 2.226978] [<ffffffff8163ee95>] __ubsan_handle_out_of_bounds+0x75/0xa0
[ 2.226980] [<ffffffff8119758d>] ? trace_hardirqs_on+0xd/0x10
[ 2.226984] [<ffffffff817ccf49>] scsi_dev_info_list_find+0x279/0x2b0
[ 2.226986] [<ffffffff817cd49c>] scsi_get_device_flags_keyed+0x1c/0x80
[ 2.226989] [<ffffffff817cd50b>] scsi_get_device_flags+0xb/0x10
[ 2.226991] [<ffffffff817c6a79>] scsi_probe_and_add_lun+0x4b9/0x1200
[ 2.226993] [<ffffffff817c7fdb>] __scsi_add_device+0x11b/0x140
[ 2.226996] [<ffffffff817f920b>] ata_scsi_scan_host+0x10b/0x200
[ 2.226999] [<ffffffff817eefb5>] async_port_probe+0x45/0x80
[ 2.227001] [<ffffffff8114b052>] async_run_entry_fn+0x52/0x220
[ 2.227003] [<ffffffff8113b4a3>] process_one_work+0x273/0x8d0
[ 2.227005] [<ffffffff8113b43f>] ? process_one_work+0x20f/0x8d0
[ 2.227007] [<ffffffff8113bd0d>] worker_thread+0x20d/0x7e0
[ 2.227009] [<ffffffff8113bb00>] ? process_one_work+0x8d0/0x8d0
[ 2.227011] [<ffffffff81146dfd>] kthread+0x13d/0x1a0
[ 2.227016] [<ffffffff81b3232f>] ret_from_fork+0x1f/0x40
[ 2.227018] [<ffffffff81146cc0>] ? kthread_create_on_node+0x260/0x260
[ 2.227019]
================================================================================
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