From: Linus Torvalds torvalds@linux-foundation.org
[ Upstream commit b9959c7a347d6adbb558fba7e36e9fef3cba3b07 ]
This was always meant to be a temporary thing, just for testing and to see if it actually ever triggered.
The only thing that reported it was syzbot doing disk image fuzzing, and then that warning is expected. So let's just remove it before -rc4, because the extra sanity testing should probably go to -stable, but we don't want the warning to do so.
Reported-by: syzbot+3031f712c7ad5dd4d926@syzkaller.appspotmail.com Fixes: 8a23eb804ca4 ("Make filldir[64]() verify the directory entry filename is valid") Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Siddharth Chandrasekaran csiddharth@vmware.com --- fs/readdir.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/readdir.c b/fs/readdir.c index ace19d9..1059f2a 100644 --- a/fs/readdir.c +++ b/fs/readdir.c @@ -90,9 +90,9 @@ EXPORT_SYMBOL(iterate_dir); */ static int verify_dirent_name(const char *name, int len) { - if (WARN_ON_ONCE(!len)) + if (!len) return -EIO; - if (WARN_ON_ONCE(memchr(name, '/', len))) + if (memchr(name, '/', len)) return -EIO; return 0; }