Commit aaf431b4 authored May 09, 2016 by Andreas Gruenbacher Committed by Al Viro May 25, 2016

xattr: Fail with -EINVAL for NULL attribute names



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@redhat.com>
  fs/xattr.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

parent e0d46f5c

fs/xattr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;