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| author |   Bart Van Assche <bvanassche@acm.org> | 2019-04-17 14:44:42 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:50:42 +0100 |
| commit | 6d18ef401a405897c793817edc51d476232c0b29 (patch) | |
| tree | 46c79481523b0538f5661acbecf10328d8aefff2 | |
| parent | fd9fb99bef72fbfb7af5c0e14560681c010a056a (diff) | |
| download | linux-yocto-6d18ef401a405897c793817edc51d476232c0b29.tar.gz | |
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>
| -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 c925ca787537..95206e227730 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -2233,14 +2233,14 @@ 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(); |