VisionFive2 Linux kernel

author: Linus Torvalds <torvalds@linux-foundation.org> 2021-04-17 09:27:04 -0700 committer: Linus Torvalds <torvalds@linux-foundation.org> 2021-04-17 11:39:49 -0700 commit: 0c93ac69407d63a85be0129aa55ffaec27ffebd3 parent: 88a5af943985fb43b4c9472b5abd9c0b9705533d

Commit Summary:

readdir: make sure to verify directory entry for legacy interfaces too

Diffstat:

1 file changed, 6 insertions, 0 deletions

diff --git a/fs/readdir.c b/fs/readdir.c
index 19434b3c982c..09e8ed7d4161 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -150,6 +150,9 @@ static int fillonedir(struct dir_context *ctx, const char *name, int namlen,
 
 	if (buf->result)
 		return -EINVAL;
+	buf->result = verify_dirent_name(name, namlen);
+	if (buf->result < 0)
+		return buf->result;
 	d_ino = ino;
 	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
 		buf->result = -EOVERFLOW;
@@ -405,6 +408,9 @@ static int compat_fillonedir(struct dir_context *ctx, const char *name,
 
 	if (buf->result)
 		return -EINVAL;
+	buf->result = verify_dirent_name(name, namlen);
+	if (buf->result < 0)
+		return buf->result;
 	d_ino = ino;
 	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
 		buf->result = -EOVERFLOW;