Commit 98e9cb57 improved the xattr name checks in xattr_resolve_name but
didn't update the NULL attribute name check appropriately, so NULL
attribute names lead to NULL pointer dereferences. Turn that into
-EINVAL results instead.
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
---
fs/xattr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/xattr.c b/fs/xattr.c
index 4861322..1515fe9 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -668,7 +668,7 @@ xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
const struct xattr_handler *handler;
if (!*name)
- return NULL;
+ return ERR_PTR(-EINVAL);
for_each_xattr_handler(handlers, handler) {
const char *n;
--
2.5.5
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