Unverified Commit f520bed2 authored by Jan Kara's avatar Jan Kara Committed by Christian Brauner
Browse files

fs/xattr: Fix handling of AT_FDCWD in setxattrat(2) and getxattrat(2) 



Currently, setxattrat(2) and getxattrat(2) are wrongly handling the
calls of the from setxattrat(AF_FDCWD, NULL, AT_EMPTY_PATH, ...) and
fail with -EBADF error instead of operating on CWD. Fix it.

Fixes: 6140be90 ("fs/xattr: add *at family syscalls")
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Link: https://lore.kernel.org/20250424132246.16822-2-jack@suse.cz


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 1d28f25d

fs/xattr.c

+2 −2
Original line number Diff line number Diff line
@@ -703,7 +703,7 @@ static int path_setxattrat(int dfd, const char __user *pathname, 
		return error;



	filename = getname_maybe_null(pathname, at_flags);

	if (!filename) {

	if (!filename && dfd >= 0) {

		CLASS(fd, f)(dfd);

		if (fd_empty(f))

			error = -EBADF;
@@ -847,7 +847,7 @@ static ssize_t path_getxattrat(int dfd, const char __user *pathname, 
		return error;



	filename = getname_maybe_null(pathname, at_flags);

	if (!filename) {

	if (!filename && dfd >= 0) {

		CLASS(fd, f)(dfd);

		if (fd_empty(f))

			return -EBADF;