diff options
| -rw-r--r-- | fs/nfs/dir.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 177fefb26c18..eb095f77c39d 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -496,6 +496,14 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry) return; if (!(entry->fattr->valid & NFS_ATTR_FATTR_FSID)) return; + if (filename.len == 0) + return; + /* Validate that the name doesn't contain any illegal '\0' */ + if (strnlen(filename.name, filename.len) != filename.len) + return; + /* ...or '/' */ + if (strnchr(filename.name, filename.len, '/')) + return; if (filename.name[0] == '.') { if (filename.len == 1) return; |