drivers: avoid parsing names as kthread_run() format strings

Calling kthread_run with a single name parameter causes it to be handled
as a format string. Many callers are passing potentially dynamic string
content, so use "%s" in those cases to avoid any potential accidents.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 8bfd1bcf95ec..04608a6502d7 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -93,7 +93,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
         }
         invalidate_inode_pages2(blkif->vbd.bdev->bd_inode->i_mapping);
 
-        blkif->xenblkd = kthread_run(xen_blkif_schedule, blkif, name);
+        blkif->xenblkd = kthread_run(xen_blkif_schedule, blkif, "%s", name);
         if (IS_ERR(blkif->xenblkd)) {
                 err = PTR_ERR(blkif->xenblkd);
                 blkif->xenblkd = NULL;