Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  IMA: update ima_counts_put

1 files changed, 5 insertions, 1 deletions

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 4732f5e5d127..b85e61bcf246 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -249,7 +249,11 @@ void ima_counts_put(struct path *path, int mask)
         struct inode *inode = path->dentry->d_inode;
         struct ima_iint_cache *iint;
 
-        if (!ima_initialized || !S_ISREG(inode->i_mode))
+        /* The inode may already have been freed, freeing the iint
+         * with it. Verify the inode is not NULL before dereferencing
+         * it.
+         */
+        if (!ima_initialized || !inode || !S_ISREG(inode->i_mode))
                 return;
         iint = ima_iint_find_insert_get(inode);
         if (!iint)