diff options
| author | Brian King <brking@linux.vnet.ibm.com> | 2008-08-15 17:59:26 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-08-16 17:49:01 +0200 |
| commit | 2bac406df52100aec42e230a2cc2986d34e86218 (patch) | |
| tree | a862e7a4ac91f9aceff797fc728619a7251b3db5 | |
| parent | [SCSI] ibmvfc: Fix for lost async events (diff) | |
| download | linux-2bac406df52100aec42e230a2cc2986d34e86218.tar.xz linux-2bac406df52100aec42e230a2cc2986d34e86218.zip | |
[SCSI] ibmvfc: Sanitize response lengths
Sanitize the response lengths in order to prevent possible oopses
in the command response path.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 58f8c9e39ae8..6ecc0ddd4440 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1457,8 +1457,8 @@ static void ibmvfc_scsi_done(struct ibmvfc_event *evt) struct ibmvfc_cmd *vfc_cmd = &evt->xfer_iu->cmd; struct ibmvfc_fcp_rsp *rsp = &vfc_cmd->rsp; struct scsi_cmnd *cmnd = evt->cmnd; - int rsp_len = 0; - int sense_len = rsp->fcp_sense_len; + u32 rsp_len = 0; + u32 sense_len = rsp->fcp_sense_len; if (cmnd) { if (vfc_cmd->response_flags & IBMVFC_ADAPTER_RESID_VALID) @@ -1475,7 +1475,7 @@ static void ibmvfc_scsi_done(struct ibmvfc_event *evt) rsp_len = rsp->fcp_rsp_len; if ((sense_len + rsp_len) > SCSI_SENSE_BUFFERSIZE) sense_len = SCSI_SENSE_BUFFERSIZE - rsp_len; - if ((rsp->flags & FCP_SNS_LEN_VALID) && rsp->fcp_sense_len) + if ((rsp->flags & FCP_SNS_LEN_VALID) && rsp->fcp_sense_len && rsp_len <= 8) memcpy(cmnd->sense_buffer, rsp->data.sense + rsp_len, sense_len); ibmvfc_log_error(evt); |