VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Dan Carpenter <dan.carpenter@oracle.com> 2014-02-14 12:05:49 +0300 committer: Steven Whitehouse <swhiteho@redhat.com> 2014-02-25 10:01:09 +0000 commit: 47ba9734403770a4c5e685b01f0a72b835dd4fff parent: 022ef4feed0c648aeb72d0c8ad06d266de08f525
Commit Summary:
fs: NULL dereference in posix_acl_to_xattr()
Diffstat:
1 file changed, 2 insertions, 2 deletions
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 38bae5a0ea25..202b84fd3310 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -717,7 +717,7 @@ posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
 		   void *buffer, size_t size)
 {
 	posix_acl_xattr_header *ext_acl = (posix_acl_xattr_header *)buffer;
-	posix_acl_xattr_entry *ext_entry = ext_acl->a_entries;
+	posix_acl_xattr_entry *ext_entry;
 	int real_size, n;
 
 	real_size = posix_acl_xattr_size(acl->a_count);
@@ -725,7 +725,8 @@ posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl,
 		return real_size;
 	if (real_size > size)
 		return -ERANGE;
-	
+
+	ext_entry = ext_acl->a_entries;
 	ext_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION);
 
 	for (n=0; n < acl->a_count; n++, ext_entry++) {