diff options
Diffstat (limited to 'trunk/2.6.18/30025_ipv4-fib_props-out-of-bounds.patch')
| -rw-r--r-- | trunk/2.6.18/30025_ipv4-fib_props-out-of-bounds.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/trunk/2.6.18/30025_ipv4-fib_props-out-of-bounds.patch b/trunk/2.6.18/30025_ipv4-fib_props-out-of-bounds.patch new file mode 100644 index 0000000..3fb091d --- /dev/null +++ b/trunk/2.6.18/30025_ipv4-fib_props-out-of-bounds.patch @@ -0,0 +1,42 @@ +From: Thomas Graf <tgraf@suug.ch> +Date: Sun, 25 Mar 2007 03:32:54 +0000 (-0700) +Subject: [IPv4] fib: Fix out of bound access of fib_props[] +X-Git-Tag: v2.6.21~241^2~12 +X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=a0ee18b9b7d3847976c6fb315c06a34fb296de0e + +[IPv4] fib: Fix out of bound access of fib_props[] + +Fixes a typo which caused fib_props[] to have the wrong size +and makes sure the value used to index the array which is +provided by userspace via netlink is checked to avoid out of +bound access. + +Signed-off-by: Thomas Graf <tgraf@suug.ch> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + +Backported to Debian's 2.6.18 by dann frazier <dannf@debian.org>, heavily +based upon Tim Gardner's backport for Ubuntu: + http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-edgy.git;a=commitdiff;h=6e87288e83ac08e7154980795622efdafd49c9c8 + +--- linux-source-2.6.18.orig/net/ipv4/fib_semantics.c 2006-09-19 21:42:06.000000000 -0600 ++++ linux-source-2.6.18/net/ipv4/fib_semantics.c 2007-08-27 22:15:04.678316443 -0600 +@@ -88,7 +88,7 @@ static const struct + { + int error; + u8 scope; +-} fib_props[RTA_MAX + 1] = { ++} fib_props[RTN_MAX + 1] = { + { + .error = 0, + .scope = RT_SCOPE_NOWHERE, +@@ -662,6 +662,9 @@ fib_create_info(const struct rtmsg *r, s + u32 mp_alg = IP_MP_ALG_NONE; + #endif + ++ if (r->rtm_type > RTN_MAX) ++ goto err_inval; ++ + /* Fast check to catch the most weird cases */ + if (fib_props[r->rtm_type].scope > r->rtm_scope) + goto err_inval; |