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bpf, sockmap: Fix map type error in sock_map_del_link

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commit 7e96ec0e66 upstream.

sock_map_del_link() operates on both SOCKMAP and SOCKHASH, although
both types have member named "progs", the offset of "progs" member in
these two types is different, so "progs" should be accessed with the
real map type.

Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20230804073740.194770-2-xukuohai@huaweicloud.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xu Kuohai 2023-08-04 03:37:37 -04:00 committed by Greg Kroah-Hartman
parent 20acffcdc2
commit ed90fe7435
1 changed files with 5 additions and 5 deletions
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10
net/core/sock_map.c
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@ -148,13 +148,13 @@ static void sock_map_del_link(struct sock *sk,
list_for_each_entry_safe(link, tmp, &psock->link, list) {
if (link->link_raw == link_raw) {
struct bpf_map *map = link->map;
struct bpf_stab *stab = container_of(map, struct bpf_stab,
map);
if (psock->saved_data_ready && stab->progs.stream_parser)
struct sk_psock_progs *progs = sock_map_progs(map);
if (psock->saved_data_ready && progs->stream_parser)
strp_stop = true;
if (psock->saved_data_ready && stab->progs.stream_verdict)
if (psock->saved_data_ready && progs->stream_verdict)
verdict_stop = true;
if (psock->saved_data_ready && stab->progs.skb_verdict)
if (psock->saved_data_ready && progs->skb_verdict)
verdict_stop = true;
list_del(&link->list);
sk_psock_free_link(link);