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| author | Andreas Oetken <andreas.oetken@siemens.com> | 2021-02-02 10:03:04 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-02-02 08:57:18 -0800 |
| commit | 6c9f18f294c4a1a6d8b1097e39c325481664ee1c (patch) | |
| tree | 79be938ea4d30e6961d9c0f8bacbcaec02ed1cce /net/hsr | |
| parent | 5a4cb546753ddf8f8182b441755c53f3111c5804 (diff) | |
| download | linux-stable-6c9f18f294c4a1a6d8b1097e39c325481664ee1c.tar.gz linux-stable-6c9f18f294c4a1a6d8b1097e39c325481664ee1c.tar.bz2 linux-stable-6c9f18f294c4a1a6d8b1097e39c325481664ee1c.zip | |
net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary
sup_multicast_addr is passed to ether_addr_equal for address comparison
which casts the address inputs to u16 leading to an unaligned access.
Aligning the sup_multicast_addr to u16 boundary fixes the issue.
Signed-off-by: Andreas Oetken <andreas.oetken@siemens.com>
Link: https://lore.kernel.org/r/20210202090304.2740471-1-ennoerlangen@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/hsr')
| -rw-r--r-- | net/hsr/hsr_main.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h index 7dc92ce5a134..a9c30a608e35 100644 --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -217,7 +217,10 @@ struct hsr_priv { u8 net_id; /* for PRP, it occupies most significant 3 bits * of lan_id */ - unsigned char sup_multicast_addr[ETH_ALEN]; + unsigned char sup_multicast_addr[ETH_ALEN] __aligned(sizeof(u16)); + /* Align to u16 boundary to avoid unaligned access + * in ether_addr_equal + */ #ifdef CONFIG_DEBUG_FS struct dentry *node_tbl_root; #endif |