diff options
| author | Lutz Donnerhacke <donner@FreeBSD.org> | 2021-05-15 09:32:57 +0000 |
|---|---|---|
| committer | Lutz Donnerhacke <donner@FreeBSD.org> | 2021-05-23 13:01:34 +0000 |
| commit | 6bc3535519f7206f844c3ffd0ee282e8875dceb4 (patch) | |
| tree | 0d4d88db902648b45d1b39337886829a1886f311 | |
| parent | 271f9f2e8b93f0724d00b5405f8b53f6695408b2 (diff) | |
netgraph/ng_checksum: Fix double free error
m_pullup(9) frees the mbuf(9) chain in the case of an allocation error.
The mbuf chain must not be freed again in this case.
PR: 255874
Submitted by: <lylgood@foxmail.com>
Approved by: markj
Differential Revision: https://reviews.freebsd.org/D30273
(cherry picked from commit 687e510e5ce32fddf46a9dc1d517ccc8a8e25581)
| -rw-r--r-- | sys/netgraph/ng_checksum.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/netgraph/ng_checksum.c b/sys/netgraph/ng_checksum.c index c7fecb0ab78d..0100b7ef3260 100644 --- a/sys/netgraph/ng_checksum.c +++ b/sys/netgraph/ng_checksum.c @@ -683,9 +683,9 @@ bypass: return (error); done: + NG_FREE_M(m); drop: NG_FREE_ITEM(item); - NG_FREE_M(m); priv->stats.dropped++; |