| commit | 9bd814beb46d6d3d5eeb374c2b38c8b75523190a | |
| author | Ben Hutchings <ben@decadent.org.uk> | |
| Sun, 1 Nov 2015 16:22:53 +0000 (1 16:22 +0000) | ||
| committer | Luis Henriques <luis.henriques@canonical.com> | |
| Mon, 16 Nov 2015 11:27:22 +0000 (16 11:27 +0000) | ||
| tree | bf43484ee4da7d379f2cb8493119b5ddd41c52ca | treesnapshot (tar.gz zip) |
| parent | bcd596b01fd5cea4591cd1cc8c1183f3da4bed68 | commitdiff |
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>
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>
| drivers/isdn/i4l/isdn_ppp.c | diffblobblamehistory | |
| drivers/net/ppp/ppp_generic.c | diffblobblamehistory | |
| drivers/net/slip/slhc.c | diffblobblamehistory | |
| drivers/net/slip/slip.c | diffblobblamehistory |