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| author | Arnd Bergmann <arnd@arndb.de> | 2017-07-14 14:07:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-14 09:03:11 -0700 |
| commit | 56c0da495a0b38f8ac0c0c0e3fcc750ea449daea (patch) | |
| tree | 4bf2f6bbe9eeddc040331866231f36e36e3a0ec3 /mm/vmacache.c | |
| parent | c7673e4dea9a338e00fa26cdd42d3697e8e22319 (diff) | |
| download | linux-stable-56c0da495a0b38f8ac0c0c0e3fcc750ea449daea.tar.gz linux-stable-56c0da495a0b38f8ac0c0c0e3fcc750ea449daea.tar.bz2 linux-stable-56c0da495a0b38f8ac0c0c0e3fcc750ea449daea.zip | |
liquidio: fix possible eeprom format string overflow
gcc reports that the temporary buffer for computing the
string length may be too small here:
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c: In function 'lio_get_eeprom_len':
/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:345:21: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=]
len = sprintf(buf, "boardname:%s serialnum:%s maj:%lld min:%lld\n",
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:345:6: note: 'sprintf' output between 35 and 167 bytes into a destination of size 128
len = sprintf(buf, "boardname:%s serialnum:%s maj:%lld min:%lld\n",
This extends it to 192 bytes, which is certainly enough. As far
as I could tell, there are no other constraints that require a specific
maximum size.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/vmacache.c')
0 files changed, 0 insertions, 0 deletions