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ata: Fix ZBC_OUT command block check

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commit b320a0a9f2 upstream.

The block (LBA) specified must not exceed the last addressable LBA,
which is dev->nr_sectors - 1. So fix the correct check is
"if (block >= dev->n_sectors)" and not "if (block > dev->n_sectords)".

Additionally, the asc/ascq to return for an LBA that is not a zone start
LBA should be ILLEGAL REQUEST, regardless if the bad LBA is out of
range.

Reported-by: David Butterfield <david.butterfield@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Damien Le Moal 2018-06-26 20:56:54 +09:00 committed by Greg Kroah-Hartman
parent a3bb42c1bc
commit aae31a169e
1 changed files with 7 additions and 6 deletions
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13
drivers/ata/libata-scsi.c
View file

@ -3801,8 +3801,13 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
*/
goto invalid_param_len;
}
if (block > dev->n_sectors)
goto out_of_range;
if (block >= dev->n_sectors) {
/*
* Block must be a valid zone ID (a zone start LBA).
*/
fp = 2;
goto invalid_fld;
}
all = cdb[14] & 0x1;
@ -3833,10 +3838,6 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
invalid_fld:
ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff);
return 1;
out_of_range:
/* "Logical Block Address out of range" */
ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x21, 0x00);
return 1;
invalid_param_len:
/* "Parameter list length error" */
ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0);