mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
22 lines
745 B
Diff
22 lines
745 B
Diff
From: Felix Fietkau <nbd@nbd.name>
|
|
Date: Wed, 13 Mar 2019 18:52:56 +0100
|
|
Subject: [PATCH] mac80211: fix unaligned access in mesh table hash function
|
|
|
|
The pointer to the last four bytes of the address is not guaranteed to be
|
|
aligned, so we need to use __get_unaligned_cpu32 here
|
|
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
|
---
|
|
|
|
--- a/net/mac80211/mesh_pathtbl.c
|
|
+++ b/net/mac80211/mesh_pathtbl.c
|
|
@@ -23,7 +23,7 @@ static void mesh_path_free_rcu(struct me
|
|
static u32 mesh_table_hash(const void *addr, u32 len, u32 seed)
|
|
{
|
|
/* Use last four bytes of hw addr as hash index */
|
|
- return jhash_1word(*(u32 *)(addr+2), seed);
|
|
+ return jhash_1word(__get_unaligned_cpu32(addr+2), seed);
|
|
}
|
|
|
|
static const struct rhashtable_params mesh_rht_params = {
|