diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2015-11-01 16:22:53 +0000 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2015-11-16 11:27:22 +0000 |
| commit | 9bd814beb46d6d3d5eeb374c2b38c8b75523190a (patch) | |
| tree | bf43484ee4da7d379f2cb8493119b5ddd41c52ca /include/linux | |
| parent | bcd596b01fd5cea4591cd1cc8c1183f3da4bed68 (diff) | |
ppp, slip: Validate VJ compression slot parameters completely
commit 4ab42d78e37a294ac7bc56901d563c642e03c4ae upstream.
Currently slhc_init() treats out-of-range values of rslots and tslots
as equivalent to 0, except that if tslots is too large it will
dereference a null pointer (CVE-2015-7799).
Add a range-check at the top of the function and make it return an
ERR_PTR() on error instead of NULL. Change the callers accordingly.
Compile-tested only.
Reported-by: 郭永刚 <guoyonggang@360.cn>
References: http://article.gmane.org/gmane.comp.security.oss.general/17908
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Moritz Mühlenhoff <jmm@inutil.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions