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| author | Dominik Czarnota <dominik.b.czarnota@gmail.com> | 2020-03-09 16:22:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-11 23:07:34 -0700 |
| commit | f3cc008bf6d59b8d93b4190e01d3e557b0040e15 (patch) | |
| tree | 839c2420a7434c3826a467f8d0d303f904ca096c /drivers/net/ethernet/samsung | |
| parent | f9fc28a8de2fb367f1ab76f0cf176ca545db3d6f (diff) | |
| download | linux-f3cc008bf6d59b8d93b4190e01d3e557b0040e15.tar.gz | |
sxgbe: Fix off by one in samsung driver strncpy size arg
This patch fixes an off-by-one error in strncpy size argument in
drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c. The issue is that in:
strncmp(opt, "eee_timer:", 6)
the passed string literal: "eee_timer:" has 10 bytes (without the NULL
byte) and the passed size argument is 6. As a result, the logic will
also accept other, malformed strings, e.g. "eee_tiXXX:".
This bug doesn't seem to have any security impact since its present in
module's cmdline parsing code.
Signed-off-by: Dominik Czarnota <dominik.b.czarnota@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/samsung')
| -rw-r--r-- | drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index c705743d69f7..2cc8184b7e6b 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -2277,7 +2277,7 @@ static int __init sxgbe_cmdline_opt(char *str) if (!str || !*str) return -EINVAL; while ((opt = strsep(&str, ",")) != NULL) { - if (!strncmp(opt, "eee_timer:", 6)) { + if (!strncmp(opt, "eee_timer:", 10)) { if (kstrtoint(opt + 10, 0, &eee_timer)) goto err; } |