diff options
| author | Lutz Donnerhacke <donner@FreeBSD.org> | 2021-05-15 09:32:57 +0000 |
|---|---|---|
| committer | Lutz Donnerhacke <donner@FreeBSD.org> | 2021-05-23 12:59:28 +0000 |
| commit | 76b96a4ec7fa8cffbfe8e876d622fd4e69f25267 (patch) | |
| tree | 6546224139f5b1816cc77dfc1ab3b04de2edc1bc | |
| parent | d6112f7dd8742a2a17292557352c12dff1aa24a9 (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++; |