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