diff options
Diffstat (limited to '0070-net-af_packet-check-len-when-min_header_len-equals-t.patch')
| -rw-r--r-- | 0070-net-af_packet-check-len-when-min_header_len-equals-t.patch | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/0070-net-af_packet-check-len-when-min_header_len-equals-t.patch b/0070-net-af_packet-check-len-when-min_header_len-equals-t.patch deleted file mode 100644 index 3fca7bfd275d..000000000000 --- a/0070-net-af_packet-check-len-when-min_header_len-equals-t.patch +++ /dev/null @@ -1,39 +0,0 @@ -From ec274d8f1e649b12530bbba3f01478e20bf8bc23 Mon Sep 17 00:00:00 2001 -From: Zhengchao Shao <shaozhengchao@huawei.com> -Date: Wed, 27 Jul 2022 17:33:12 +0800 -Subject: [PATCH 70/73] net/af_packet: check len when min_header_len equals to - 0 - -commit dc633700f00f726e027846a318c5ffeb8deaaeda upstream. - -User can use AF_PACKET socket to send packets with the length of 0. -When min_header_len equals to 0, packet_snd will call __dev_queue_xmit -to send packets, and sock->type can be any type. - -Reported-by: syzbot+5ea725c25d06fb9114c4@syzkaller.appspotmail.com -Fixes: fd1894224407 ("bpf: Don't redirect packets with invalid pkt_len") -Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> -Signed-off-by: David S. Miller <davem@davemloft.net> -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - net/packet/af_packet.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c -index ca6e92a22923..492bd35cccc0 100644 ---- a/net/packet/af_packet.c -+++ b/net/packet/af_packet.c -@@ -3037,8 +3037,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) - if (err) - goto out_free; - -- if (sock->type == SOCK_RAW && -- !dev_validate_header(dev, skb->data, len)) { -+ if ((sock->type == SOCK_RAW && -+ !dev_validate_header(dev, skb->data, len)) || !skb->len) { - err = -EINVAL; - goto out_free; - } --- -2.37.3 - |