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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
| commit | 926b6f28303f165411f8dc876c265de64059e9a9 (patch) | |
| tree | fc75a8914b7694687b43740c15957e02f964364c /net/tipc | |
| parent | Releasing progress-linux version 6.8.9-1~progress7.99u1. (diff) | |
| download | linux-926b6f28303f165411f8dc876c265de64059e9a9.tar.xz linux-926b6f28303f165411f8dc876c265de64059e9a9.zip | |
Merging upstream version 6.8.11.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/msg.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 5c9fd4791c..76284fc538 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -142,9 +142,9 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (fragid == FIRST_FRAGMENT) { if (unlikely(head)) goto err; - *buf = NULL; if (skb_has_frag_list(frag) && __skb_linearize(frag)) goto err; + *buf = NULL; frag = skb_unshare(frag, GFP_ATOMIC); if (unlikely(!frag)) goto err; @@ -156,6 +156,11 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) if (!head) goto err; + /* Either the input skb ownership is transferred to headskb + * or the input skb is freed, clear the reference to avoid + * bad access on error path. + */ + *buf = NULL; if (skb_try_coalesce(head, frag, &headstolen, &delta)) { kfree_skb_partial(frag, headstolen); } else { @@ -179,7 +184,6 @@ int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf) *headbuf = NULL; return 1; } - *buf = NULL; return 0; err: kfree_skb(*buf); |