Files
kernel_xiaomi_raphael/include/uapi/linux
Juliana Rodrigueiro a46102f47d netfilter: xt_nfacct: Fix alignment mismatch in xt_nfacct_match_info
[ Upstream commit 89a26cd4b501e9511d3cd3d22327fc76a75a38b3 ]

When running a 64-bit kernel with a 32-bit iptables binary, the size of
the xt_nfacct_match_info struct diverges.

    kernel: sizeof(struct xt_nfacct_match_info) : 40
    iptables: sizeof(struct xt_nfacct_match_info)) : 36

Trying to append nfacct related rules results in an unhelpful message.
Although it is suggested to look for more information in dmesg, nothing
can be found there.

    # iptables -A <chain> -m nfacct --nfacct-name <acct-object>
    iptables: Invalid argument. Run `dmesg' for more information.

This patch fixes the memory misalignment by enforcing 8-byte alignment
within the struct's first revision. This solution is often used in many
other uapi netfilter headers.

Signed-off-by: Juliana Rodrigueiro <juliana.rodrigueiro@intra2net.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-09-21 07:15:32 +02:00
..
2017-08-31 17:32:38 -04:00
2017-12-05 11:26:34 +01:00
2018-02-16 20:22:54 +01:00
2018-04-24 09:36:37 +02:00
2017-08-04 10:30:27 +02:00