kernel: fix a reference counting bug in overlayfs

Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 37014
11 years ago · 3df61e8279
parent 0f003be010
commit 3df61e8279
3 changed files with 30 additions and 0 deletions
--- a/target/linux/generic/patches-3.10/101-overlayfs_path_ref.patch
+++ b/target/linux/generic/patches-3.10/101-overlayfs_path_ref.patch
@ -0,0 +1,10 @@
+--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
+@@ -385,7 +385,6 @@ struct dentry *ovl_lookup(struct inode *
+ 
+ struct file *ovl_path_open(struct path *path, int flags)
+ {
+-	path_get(path);
+ 	return dentry_open(path, flags, current_cred());
+ }
+ 
--- a/target/linux/generic/patches-3.8/101-overlayfs_path_ref.patch
+++ b/target/linux/generic/patches-3.8/101-overlayfs_path_ref.patch
@ -0,0 +1,10 @@
+--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
+@@ -385,7 +385,6 @@ struct dentry *ovl_lookup(struct inode *
+ 
+ struct file *ovl_path_open(struct path *path, int flags)
+ {
+-	path_get(path);
+ 	return dentry_open(path, flags, current_cred());
+ }
+ 
--- a/target/linux/generic/patches-3.9/101-overlayfs_path_ref.patch
+++ b/target/linux/generic/patches-3.9/101-overlayfs_path_ref.patch
@ -0,0 +1,10 @@
+--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
+@@ -385,7 +385,6 @@ struct dentry *ovl_lookup(struct inode *
+ 
+ struct file *ovl_path_open(struct path *path, int flags)
+ {
+-	path_get(path);
+ 	return dentry_open(path, flags, current_cred());
+ }
+