* UBSAN: Undefined behaviour in drivers/scsi/scsi_devinfo.c:457:21
@ 2016-05-17 16:45 Meelis Roos
0 siblings, 0 replies; only message in thread
From: Meelis Roos @ 2016-05-17 16:45 UTC (permalink / raw)
To: linux-scsi, Linux Kernel list, Hannes Reinecke,
James E.J. Bottomley, Martin K. Petersen
Found another UBSAN warning on 32-bit powerpc, during pata_macio driver
initialization. I hope it is not a false positive :)
[ 2.540935] ================================================================================
[ 2.547807] UBSAN: Undefined behaviour in drivers/scsi/scsi_devinfo.c:457:21
[ 2.554665] index 8 is out of range for type 'char [8]'
[ 2.561498] CPU: 0 PID: 9 Comm: kworker/u2:1 Not tainted 4.6.0-dirty #102
[ 2.568395] Workqueue: events_unbound async_run_entry_fn
[ 2.575241] Call Trace:
[ 2.581953] [ef111bf0] [c0398480] ubsan_epilogue+0x18/0x4c (unreliable)
[ 2.588875] [ef111c00] [c0398ba0] __ubsan_handle_out_of_bounds+0x7c/0x90
[ 2.595856] [ef111c40] [c049c258] scsi_dev_info_list_find+0x294/0x2d8
[ 2.602876] [ef111c80] [c049caf8] scsi_get_device_flags_keyed+0x2c/0xc0
[ 2.609860] [ef111ca0] [c0495a10] scsi_probe_and_add_lun+0x398/0x113c
[ 2.616837] [ef111d60] [c0496b1c] __scsi_add_device+0x12c/0x158
[ 2.623720] [ef111d90] [c04c17f0] ata_scsi_scan_host+0x1a0/0x2f0
[ 2.630573] [ef111de0] [c0076c68] async_run_entry_fn+0x68/0x1f8
[ 2.637382] [ef111e20] [c0068e34] process_one_work+0x1e8/0x6b8
[ 2.644109] [ef111e80] [c0069378] worker_thread+0x74/0x704
[ 2.650764] [ef111ef0] [c00731fc] kthread+0xd8/0x134
[ 2.657326] [ef111f40] [c0019394] ret_from_kernel_thread+0x5c/0x64
[ 2.663877] ================================================================================
--
Meelis Roos (mroos@linux.ee)
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2016-05-17 16:45 UBSAN: Undefined behaviour in drivers/scsi/scsi_devinfo.c:457:21 Meelis Roos
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