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[SCSI] esas2r: smatch - Fix overrun due to sprintf appending NULL

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Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Bradley Grove 2013-08-29 15:55:42 -04:00 committed by James Bottomley
parent 64d29bd83e
commit eaf74a06f1
1 changed files with 5 additions and 2 deletions
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7
drivers/scsi/esas2r/esas2r_vda.c
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@ -302,6 +302,7 @@ static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
if (vi->cmd.cfg.cfg_func == VDA_CFG_GET_INIT) {
struct atto_ioctl_vda_cfg_cmd *cfg = &vi->cmd.cfg;
struct atto_vda_cfg_rsp *rsp = &rq->func_rsp.cfg_rsp;
char buf[sizeof(cfg->data.init.fw_release) + 1];
cfg->data_length =
cpu_to_le32(sizeof(struct atto_vda_cfg_init));
@ -309,11 +310,13 @@ static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
le32_to_cpu(rsp->vda_version);
cfg->data.init.fw_build = rsp->fw_build;
sprintf((char *)&cfg->data.init.fw_release,
"%1d.%02d",
snprintf(buf, sizeof(buf), "%1d.%02d",
(int)LOBYTE(le16_to_cpu(rsp->fw_release)),
(int)HIBYTE(le16_to_cpu(rsp->fw_release)));
memcpy(&cfg->data.init.fw_release, buf,
sizeof(cfg->data.init.fw_release));
if (LOWORD(LOBYTE(cfg->data.init.fw_build)) == 'A')
cfg->data.init.fw_version =
cfg->data.init.fw_build;