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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 03:22:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-16 03:22:49 +0000
commit87662aef9c2f9405ca8937c07372641e69113654 (patch)
tree612907d41d90d34f497c4bfbbfd9fbd368d2a1d7 /net/hsr/hsr_framereg.c
parentAdding debian version 6.1.82-1. (diff)
downloadlinux-87662aef9c2f9405ca8937c07372641e69113654.tar.xz
linux-87662aef9c2f9405ca8937c07372641e69113654.zip
Merging upstream version 6.1.85.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/hsr/hsr_framereg.c')
-rw-r--r--net/hsr/hsr_framereg.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 0b0199878..e44a039e3 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -235,6 +235,10 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
*/
if (ethhdr->h_proto == htons(ETH_P_PRP) ||
ethhdr->h_proto == htons(ETH_P_HSR)) {
+ /* Check if skb contains hsr_ethhdr */
+ if (skb->mac_len < sizeof(struct hsr_ethhdr))
+ return NULL;
+
/* Use the existing sequence_nr from the tag as starting point
* for filtering duplicate frames.
*/