diff options
| author | Damien Le Moal <damien.lemoal@wdc.com> | 2018-06-26 14:56:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-17 12:37:51 +0300 |
| commit | 51bacd848cc1bcd8fb82d413cf27f407973536f5 (patch) | |
| tree | 9499da1ce5b072f8c77eeac9a70e9c31f8f789aa /drivers/ata/libata-scsi.c | |
| parent | 2823345cd41f30d39483aebb9e3eb5341a2d4f06 (diff) | |
| download | linux-51bacd848cc1bcd8fb82d413cf27f407973536f5.tar.xz | |
ata: Fix ZBC_OUT command block check
commit b320a0a9f23c98f21631eb27bcbbca91c79b1c6e 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>
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index fb2c00fce8f9..ad7e1d0dd6ab 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3772,8 +3772,13 @@ 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; @@ -3804,10 +3809,6 @@ 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); |