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authorFelix Fietkau <nbd@nbd.name>2019-03-13 20:54:27 +0300
committerJohannes Berg <johannes.berg@intel.com>2019-03-29 13:18:48 +0300
commit40586e3fc400c00c11151804dcdc93f8c831c808 (patch)
tree5710a4a42eb62ccff3aed29e2d18a2e4971ca2c7 /net/mac80211
parentb49c15e1211cc962cb73bbaaa5175ae068144893 (diff)
downloadlinux-40586e3fc400c00c11151804dcdc93f8c831c808.tar.xz
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> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/mesh_pathtbl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 95eb5064fa91..b76a2aefa9ec 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -23,7 +23,7 @@ static void mesh_path_free_rcu(struct mesh_table *tbl, struct mesh_path *mpath);
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((u8 *)addr + 2), seed);
}
static const struct rhashtable_params mesh_rht_params = {