diff options
| author | Martin K. Petersen <martin.petersen@oracle.com> | 2009-09-18 17:33:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-21 21:51:10 -0700 |
| commit | 73932f03a6dc32f93518006eb1dfd7a72ee68537 (patch) | |
| tree | 5d3cc632f7c1dbd243702946d50f3a3af4c6e4e8 | |
| parent | 66f7234efcc7182ee7f3e5884ae385b2ff4dce87 (diff) | |
SCSI: Fix protection scsi_data_buffer leak
commit b4c2554d40ceac130a8d062eaa8838ed22158c45 upstream.
We would leak a scsi_data_buffer if the free_list command was of the
protected variety.
Reported-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/scsi/scsi.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index ee6be596503..5f76f55d4eb 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -243,10 +243,7 @@ scsi_host_alloc_command(struct Scsi_Host *shost, gfp_t gfp_mask) */ struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask) { - struct scsi_cmnd *cmd; - unsigned char *buf; - - cmd = scsi_host_alloc_command(shost, gfp_mask); + struct scsi_cmnd *cmd = scsi_host_alloc_command(shost, gfp_mask); if (unlikely(!cmd)) { unsigned long flags; @@ -260,9 +257,15 @@ struct scsi_cmnd *__scsi_get_command(struct Scsi_Host *shost, gfp_t gfp_mask) spin_unlock_irqrestore(&shost->free_list_lock, flags); if (cmd) { + void *buf, *prot; + buf = cmd->sense_buffer; + prot = cmd->prot_sdb; + memset(cmd, 0, sizeof(*cmd)); + cmd->sense_buffer = buf; + cmd->prot_sdb = prot; } } |