| commit | 6a1015b0b4b1f3a0de9e40d2ba86877d13f50918 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Sat May 23 20:46:48 2020 +0300 |
| committer | David S. Miller <davem@davemloft.net> | Mon May 25 17:51:28 2020 -0700 |
| tree | 3f24921700cd271bf6e50771ff8acafe64b1363b | |
| parent | ca23cb0bc50faae0d48786b2f9f702dbb528b925 [diff] |
ipv4: potential underflow in compat_ip_setsockopt()
The value of "n" is capped at 0x1ffffff but it checked for negative
values. I don't think this causes a problem but I'm not certain and
it's harmless to prevent it.
Fixes: 2e04172875c9 ("ipv4: do compat setsockopt for MCAST_MSFILTER directly")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>