[PATCH] erofs-utils: xattr: fix OOB access due to alignment
Li GuiFu
bluce.lee at aliyun.com
Sat Dec 5 18:35:41 AEDT 2020
On 2020/11/27 22:33, Gao Xiang wrote:
> From: Gao Xiang <hsiangkao at aol.com>
>
> erofs_buf_write_bhops can only be safely used for block-aligned
> buffers, otherwise, it could write random out-of-bound data due
> to buffer alignment. Such random data is meaningless but it does
> harm to reproducable builds.
>
> Fixes: 116ac0a254fc ("erofs-utils: introduce shared xattr support")
> Reported-by: Huang Jianan <huangjianan at oppo.com>
> Signed-off-by: Gao Xiang <hsiangkao at aol.com>
> ---
> lib/xattr.c | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
It looks good
Reviewed-by: Li Guifu <bluce.lee at aliyun.com>
Thanks,
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