diff options
| author | Al Viro <aviro@redhat.com> | 2005-08-31 10:55:12 +0100 |
|---|---|---|
| committer | Chris Wright <chrisw@osdl.org> | 2005-09-09 19:42:53 -0700 |
| commit | 0721a681c617fdd498f2f0f40e69895354baf099 (patch) | |
| tree | 1c27cf638a23c3d68817e7bf441229ec9c3a6af9 | |
| parent | c255cda2af84db91d19944c092baf5a61c633181 (diff) | |
[PATCH] raw_sendmsg DoS (CAN-2005-2492)
Fix unchecked __get_user that could be tricked into generating a
memory read on an arbitrary address. The result of the read is not
returned directly but you may be able to divine some information about
it, or use the read to cause a crash on some architectures by reading
hardware state. CAN-2005-2492.
Fix from Al Viro, ack from Dave Miller.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | net/ipv4/raw.c | 2 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index d1835b1bc8c..1364115e16b 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -358,7 +358,7 @@ static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg) if (type && code) { get_user(fl->fl_icmp_type, type); - __get_user(fl->fl_icmp_code, code); + get_user(fl->fl_icmp_code, code); probed = 1; } break; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 1d4d75b34d3..1c72d49f779 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -619,7 +619,7 @@ static void rawv6_probe_proto_opt(struct flowi *fl, struct msghdr *msg) if (type && code) { get_user(fl->fl_icmp_type, type); - __get_user(fl->fl_icmp_code, code); + get_user(fl->fl_icmp_code, code); probed = 1; } break; |