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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-01-19 22:34:51 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-19 19:42:21 -0500 |
| commit | a8c1d28ac3925b99b5a939617d3fef1644298ee8 (patch) | |
| tree | f068125515f1490894aa9313d0078895db84d0b1 /drivers/net/ethernet/neterion | |
| parent | ef5a1ba145b95aafab823f833ad9b77d2ccc39bf (diff) | |
| download | lwn-a8c1d28ac3925b99b5a939617d3fef1644298ee8.tar.gz lwn-a8c1d28ac3925b99b5a939617d3fef1644298ee8.zip | |
s2io: use snprintf() as a safety feature
"sp->desc[i]" has 25 characters. "dev->name" has 15 characters. If we
used all 15 characters then the sprintf() would overflow.
I changed the "sprintf(sp->name, "%s Neterion %s"" to snprintf(), as
well, even though it can't overflow just to be consistent.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/neterion')
| -rw-r--r-- | drivers/net/ethernet/neterion/s2io.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c index f5e4b820128b..db0c7a9aee60 100644 --- a/drivers/net/ethernet/neterion/s2io.c +++ b/drivers/net/ethernet/neterion/s2io.c @@ -6987,7 +6987,9 @@ static int s2io_add_isr(struct s2io_nic *sp) if (sp->s2io_entries[i].in_use == MSIX_FLG) { if (sp->s2io_entries[i].type == MSIX_RING_TYPE) { - sprintf(sp->desc[i], "%s:MSI-X-%d-RX", + snprintf(sp->desc[i], + sizeof(sp->desc[i]), + "%s:MSI-X-%d-RX", dev->name, i); err = request_irq(sp->entries[i].vector, s2io_msix_ring_handle, @@ -6996,7 +6998,9 @@ static int s2io_add_isr(struct s2io_nic *sp) sp->s2io_entries[i].arg); } else if (sp->s2io_entries[i].type == MSIX_ALARM_TYPE) { - sprintf(sp->desc[i], "%s:MSI-X-%d-TX", + snprintf(sp->desc[i], + sizeof(sp->desc[i]), + "%s:MSI-X-%d-TX", dev->name, i); err = request_irq(sp->entries[i].vector, s2io_msix_fifo_handle, @@ -8154,7 +8158,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) "%s: UDP Fragmentation Offload(UFO) enabled\n", dev->name); /* Initialize device name */ - sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name); + snprintf(sp->name, sizeof(sp->name), "%s Neterion %s", dev->name, + sp->product_name); if (vlan_tag_strip) sp->vlan_strip_flag = 1; |