3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paul Kot <paw...@gmail.com>
commit c00b6856fc642b234895cfabd15b289e76726430 upstream.
Writing a icmp_packet_rr and then reading icmp_packet can lead to kernel
memory corruption, if __user *buf is just below TASK_SIZE.
Signed-off-by: Paul Kot <paw...@gmail.com>
[s...@narfation.org: made it checkpatch clean]
Signed-off-by: Sven Eckelmann <s...@narfation.org>
Signed-off-by: Marek Lindner <lindner_ma...@yahoo.de>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
net/batman-adv/icmp_socket.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -136,8 +136,8 @@ static ssize_t bat_socket_read(struct fi
spin_unlock_bh(&socket_client->lock);
- error = __copy_to_user(buf, &socket_packet->icmp_packet,
- socket_packet->icmp_len);
+ error = copy_to_user(buf, &socket_packet->icmp_packet,
+ socket_packet->icmp_len);
packet_len = socket_packet->icmp_len;
kfree(socket_packet);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
