diff options
| author | Bruce Allan <bruce.w.allan@intel.com> | 2011-01-06 17:29:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-10 10:44:08 +0300 |
| commit | e0dc4f125456e57347a6d016bd7209f064135b1d (patch) | |
| tree | 6458f1eaf49dabf7e08e65ec0493077cd84e260c /drivers/net/e1000e/ethtool.c | |
| parent | 482fed85e64958f678a138a4b5f8891190d2b169 (diff) | |
| download | linux-e0dc4f125456e57347a6d016bd7209f064135b1d.tar.xz | |
e1000e: properly bounds-check string functions
Use string functions with bounds checking rather than their non-bounds
checking counterparts, and do not hard code these boundaries.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/ethtool.c')
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index affcacf6f5a9..c942ccab8bca 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -624,20 +624,24 @@ static void e1000_get_drvinfo(struct net_device *netdev, struct e1000_adapter *adapter = netdev_priv(netdev); char firmware_version[32]; - strncpy(drvinfo->driver, e1000e_driver_name, 32); - strncpy(drvinfo->version, e1000e_driver_version, 32); + strncpy(drvinfo->driver, e1000e_driver_name, + sizeof(drvinfo->driver) - 1); + strncpy(drvinfo->version, e1000e_driver_version, + sizeof(drvinfo->version) - 1); /* * EEPROM image version # is reported as firmware version # for * PCI-E controllers */ - sprintf(firmware_version, "%d.%d-%d", + snprintf(firmware_version, sizeof(firmware_version), "%d.%d-%d", (adapter->eeprom_vers & 0xF000) >> 12, (adapter->eeprom_vers & 0x0FF0) >> 4, (adapter->eeprom_vers & 0x000F)); - strncpy(drvinfo->fw_version, firmware_version, 32); - strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + strncpy(drvinfo->fw_version, firmware_version, + sizeof(drvinfo->fw_version) - 1); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), + sizeof(drvinfo->bus_info) - 1); drvinfo->regdump_len = e1000_get_regs_len(netdev); drvinfo->eedump_len = e1000_get_eeprom_len(netdev); } |