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| author | Bart Van Assche <bvanassche@acm.org> | 2019-04-18 00:44:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 16:46:31 +0300 |
| commit | 6a75405369e9cdb7509dd760c0213154e819c353 (patch) | |
| tree | c4ae8ac2c5048a625f605ed80797cad811e1529b /drivers/scsi/qla2xxx | |
| parent | ab353598ceed8af45a9a83bf50b5e2056733742c (diff) | |
| download | linux-6a75405369e9cdb7509dd760c0213154e819c353.tar.xz | |
scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory
[ Upstream commit a861b49273578e255426a499842cf7f465456351 ]
The "(&ctio->u.status1.sense_data)[i]" where i >= 0 expressions in
qlt_send_resp_ctio() are probably typos and should have been
"(&ctio->u.status1.sense_data[4 * i])" instead. Instead of only fixing
these typos, modify the code for storing sense data such that it becomes
easy to read. This patch fixes a Coverity complaint about accessing an
array outside its bounds.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Fixes: be25152c0d9e ("qla2xxx: Improve T10-DIF/PI handling in driver.") # v4.11.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 1000422ef4f8..21011c5fddeb 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -2122,14 +2122,14 @@ void qlt_send_resp_ctio(struct qla_qpair *qpair, struct qla_tgt_cmd *cmd, ctio->u.status1.scsi_status |= cpu_to_le16(SS_RESIDUAL_UNDER); - /* Response code and sense key */ - put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), - (&ctio->u.status1.sense_data)[0]); + /* Fixed format sense data. */ + ctio->u.status1.sense_data[0] = 0x70; + ctio->u.status1.sense_data[2] = sense_key; /* Additional sense length */ - put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); + ctio->u.status1.sense_data[7] = 0xa; /* ASC and ASCQ */ - put_unaligned_le32(((asc << 24) | (ascq << 16)), - (&ctio->u.status1.sense_data)[3]); + ctio->u.status1.sense_data[12] = asc; + ctio->u.status1.sense_data[13] = ascq; /* Memory Barrier */ wmb(); |