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xfs: xattr scrub should ensure one namespace bit per name

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Check that each extended attribute exists in only one namespace.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2023-04-11 19:00:29 -07:00
parent 1c1646afc9
commit c12ad41468
1 changed files with 7 additions and 1 deletions
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8
fs/xfs/scrub/attr.c
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@ -128,10 +128,16 @@ xchk_xattr_listent(
return;
}
/* Only one namespace bit allowed. */
if (hweight32(flags & XFS_ATTR_NSP_ONDISK_MASK) > 1) {
xchk_fblock_set_corrupt(sx->sc, XFS_ATTR_FORK, args.blkno);
goto fail_xref;
}
/* Does this name make sense? */
if (!xfs_attr_namecheck(name, namelen)) {
xchk_fblock_set_corrupt(sx->sc, XFS_ATTR_FORK, args.blkno);
return;
goto fail_xref;
}
/*