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authorDan Carpenter <dan.carpenter@oracle.com>2013-01-17 22:46:18 +0100
committerDavid S. Miller <davem@davemloft.net>2013-01-18 20:34:48 +0100
commit4505f40a6f1a6a1bb8f8ef84a4a35263d64b5125 (patch)
treec24a2640af41309c22d32f21ab4332ec6d52ce9d /drivers
parentsmsc: smc911x: Fix sparse warnings (diff)
downloadlinux-4505f40a6f1a6a1bb8f8ef84a4a35263d64b5125.tar.xz
linux-4505f40a6f1a6a1bb8f8ef84a4a35263d64b5125.zip
enic: change sprintf() to snprintf()
These are copying data into 16 char arrays. They all specify that the first string can't be more than 11 characters but once you add on the "-rx-" and the NUL character there isn't space for the %d. The first string is probably never going to be 11 characters, but if it is then let's truncate the string instead of corrupting memory. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/cisco/enic/enic_main.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index ebccebff1437..ec1a233622c6 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1490,7 +1490,8 @@ static int enic_request_intr(struct enic *enic)
for (i = 0; i < enic->rq_count; i++) {
intr = enic_msix_rq_intr(enic, i);
- sprintf(enic->msix[intr].devname,
+ snprintf(enic->msix[intr].devname,
+ sizeof(enic->msix[intr].devname),
"%.11s-rx-%d", netdev->name, i);
enic->msix[intr].isr = enic_isr_msix_rq;
enic->msix[intr].devid = &enic->napi[i];
@@ -1498,20 +1499,23 @@ static int enic_request_intr(struct enic *enic)
for (i = 0; i < enic->wq_count; i++) {
intr = enic_msix_wq_intr(enic, i);
- sprintf(enic->msix[intr].devname,
+ snprintf(enic->msix[intr].devname,
+ sizeof(enic->msix[intr].devname),
"%.11s-tx-%d", netdev->name, i);
enic->msix[intr].isr = enic_isr_msix_wq;
enic->msix[intr].devid = enic;
}
intr = enic_msix_err_intr(enic);
- sprintf(enic->msix[intr].devname,
+ snprintf(enic->msix[intr].devname,
+ sizeof(enic->msix[intr].devname),
"%.11s-err", netdev->name);
enic->msix[intr].isr = enic_isr_msix_err;
enic->msix[intr].devid = enic;
intr = enic_msix_notify_intr(enic);
- sprintf(enic->msix[intr].devname,
+ snprintf(enic->msix[intr].devname,
+ sizeof(enic->msix[intr].devname),
"%.11s-notify", netdev->name);
enic->msix[intr].isr = enic_isr_msix_notify;
enic->msix[intr].devid = enic;