diff options
| 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 12:15:16 +0300 |
| commit | 8af3119388c432b0133a068185b7664f24da4495 (patch) | |
| tree | ab1a57cc70c2898926bd6e66979b136877c48910 | |
| parent | 898c9a0ee715e712a8fbb969443926d600e64635 (diff) | |
| download | linux-8af3119388c432b0133a068185b7664f24da4495.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 2f2a6023fb0e..94a1599824d8 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -180,7 +180,7 @@ struct pneigh_entry { netdevice_tracker dev_tracker; u32 flags; u8 protocol; - u8 key[]; + u32 key[]; }; /* |