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| author |   Martin K. Petersen <martin.petersen@oracle.com> | 2009-09-18 17:33:01 -0400 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2009-10-02 09:46:52 -0500 |
| commit | b4c2554d40ceac130a8d062eaa8838ed22158c45 (patch) | |
| tree | 370f6c78d8186365c6c595e5fcf6d41b3f67137b | |
| parent | [SCSI] sd: Detach DIF from block integrity infrastructure (diff) | |
| download | linux-dev-b4c2554d40ceac130a8d062eaa8838ed22158c45.tar.xz linux-dev-b4c2554d40ceac130a8d062eaa8838ed22158c45.zip | |
[SCSI] Fix protection scsi_data_buffer leak
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>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@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 b6e03074cb8f..dd098cad337b 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -241,10 +241,7 @@ 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; @@ -258,9 +255,15 @@ 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; } } |