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authorPaulo Alcantara (SUSE) <pc@cjr.nz>2020-02-20 23:49:35 +0100
committerSteve French <stfrench@microsoft.com>2020-02-24 21:20:38 +0100
commit154255233830e1e4dd0d99ac929a5dce588c0b81 (patch)
tree719128f79d04751293c8786f0585c4f9b8e2adf7
parentcifs: don't leak -EAGAIN for stat() during reconnect (diff)
downloadlinux-154255233830e1e4dd0d99ac929a5dce588c0b81.tar.xz
linux-154255233830e1e4dd0d99ac929a5dce588c0b81.zip
cifs: fix potential mismatch of UNC paths
Ensure that full_path is an UNC path that contains '\\' as delimiter, which is required by cifs_build_devname(). The build_path_from_dentry_optional_prefix() function may return a path with '/' as delimiter when using SMB1 UNIX extensions, for example. Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com> Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
-rw-r--r--fs/cifs/cifs_dfs_ref.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index 606f26d862dc..cc3ada12848d 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -324,6 +324,8 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
if (full_path == NULL)
goto cdda_exit;
+ convert_delimiter(full_path, '\\');
+
cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path);
if (!cifs_sb_master_tlink(cifs_sb)) {