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Btrfs: Check validity before setting an acl
Call posix_acl_valid() to check if an acl is valid or not. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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1 changed files with 5 additions and 4 deletions
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@ -178,16 +178,17 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
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if (value) {
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acl = posix_acl_from_xattr(value, size);
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if (acl == NULL) {
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value = NULL;
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size = 0;
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if (acl) {
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ret = posix_acl_valid(acl);
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if (ret)
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goto out;
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} else if (IS_ERR(acl)) {
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return PTR_ERR(acl);
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}
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}
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ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
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out:
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posix_acl_release(acl);
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return ret;
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