This is a note to let you know that I've just added the patch titled
vfs: split out vfs_getattr_nosec
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
vfs-split-out-vfs_getattr_nosec.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b7a6ec52dd4eced4a9bcda9ca85b3c8af84d3c90 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
Date: Wed, 2 Oct 2013 17:01:18 -0400
Subject: vfs: split out vfs_getattr_nosec
From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
commit b7a6ec52dd4eced4a9bcda9ca85b3c8af84d3c90 upstream.
The filehandle lookup code wants this version of getattr.
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/stat.c | 31 +++++++++++++++++++++++++------
include/linux/fs.h | 1 +
2 files changed, 26 insertions(+), 6 deletions(-)
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -37,14 +37,21 @@ void generic_fillattr(struct inode *inod
EXPORT_SYMBOL(generic_fillattr);
-int vfs_getattr(struct path *path, struct kstat *stat)
+/**
+ * vfs_getattr_nosec - getattr without security checks
+ * @path: file to get attributes from
+ * @stat: structure to return attributes in
+ *
+ * Get attributes without calling security_inode_getattr.
+ *
+ * Currently the only caller other than vfs_getattr is internal to the
+ * filehandle lookup code, which uses only the inode number and returns
+ * no attributes to any user. Any other code probably wants
+ * vfs_getattr.
+ */
+int vfs_getattr_nosec(struct path *path, struct kstat *stat)
{
struct inode *inode = path->dentry->d_inode;
- int retval;
-
- retval = security_inode_getattr(path->mnt, path->dentry);
- if (retval)
- return retval;
if (inode->i_op->getattr)
return inode->i_op->getattr(path->mnt, path->dentry, stat);
@@ -53,6 +60,18 @@ int vfs_getattr(struct path *path, struc
return 0;
}
+EXPORT_SYMBOL(vfs_getattr_nosec);
+
+int vfs_getattr(struct path *path, struct kstat *stat)
+{
+ int retval;
+
+ retval = security_inode_getattr(path->mnt, path->dentry);
+ if (retval)
+ return retval;
+ return vfs_getattr_nosec(path, stat);
+}
+
EXPORT_SYMBOL(vfs_getattr);
int vfs_fstat(unsigned int fd, struct kstat *stat)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2504,6 +2504,7 @@ extern int page_symlink(struct inode *in
extern const struct inode_operations page_symlink_inode_operations;
extern int generic_readlink(struct dentry *, char __user *, int);
extern void generic_fillattr(struct inode *, struct kstat *);
+int vfs_getattr_nosec(struct path *path, struct kstat *stat);
extern int vfs_getattr(struct path *, struct kstat *);
void __inode_add_bytes(struct inode *inode, loff_t bytes);
void inode_add_bytes(struct inode *inode, loff_t bytes);
Patches currently in stable-queue which might be from bfields@xxxxxxxxxx are
queue-3.12/exportfs-fix-32-bit-nfsd-handling-of-64-bit-inode-numbers.patch
queue-3.12/vfs-split-out-vfs_getattr_nosec.patch
queue-3.12/nfsd-when-reusing-an-existing-repcache-entry-unhash-it-first.patch
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