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| author | Qingfang DENG <qingfang.deng@siflower.com.cn> | 2023-06-01 04:54:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-14 12:09:38 +0300 |
| commit | 9fcc3c3d26a049aa04e0bc0462f84a9a775f428e (patch) | |
| tree | b73c7e3ad9ea9a1d9a842a6899f0483bc6c1b467 | |
| parent | 99883d4a0be29ac364cdb27a41f403c630fdd01d (diff) | |
| download | linux-9fcc3c3d26a049aa04e0bc0462f84a9a775f428e.tar.xz | |
neighbour: fix unaligned access to pneigh_entry
[ Upstream commit ed779fe4c9b5a20b4ab4fd6f3e19807445bb78c7 ]
After the blamed commit, the member key is longer 4-byte aligned. On
platforms that do not support unaligned access, e.g., MIPS32R2 with
unaligned_action set to 1, this will trigger a crash when accessing
an IPv6 pneigh_entry, as the key is cast to an in6_addr pointer.
Change the type of the key to u32 to make it aligned.
Fixes: 62dd93181aaa ("[IPV6] NDISC: Set per-entry is_router flag in Proxy NA.")
Signed-off-by: Qingfang DENG <qingfang.deng@siflower.com.cn>
Link: https://lore.kernel.org/r/20230601015432.159066-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | include/net/neighbour.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h index d5767e25509c..abb22cfd4827 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -174,7 +174,7 @@ struct pneigh_entry { struct net_device *dev; u8 flags; u8 protocol; - u8 key[]; + u32 key[]; }; /* |