On Wed, Aug 03, 2016 at 03:36:44PM +0800, Eryu Guan wrote: > On Mon, Jul 25, 2016 at 01:56:28PM -0700, Greg Kroah-Hartman wrote: > > 4.4-stable review patch. If anyone has any objections, please let me know. > > > > ------------------ > > > > From: Vivek Goyal <vgoyal@xxxxxxxxxx> > > > > commit 07a2daab49c549a37b5b744cbebb6e3f445f12bc upstream. > > > > Right now when a new overlay inode is created, we initialize overlay > > inode's ->i_mode from underlying inode ->i_mode but we retain only > > file type bits (S_IFMT) and discard permission bits. > > > > This patch changes it and retains permission bits too. This should allow > > overlay to do permission checks on overlay inode itself in task context. > > > > [SzM] It also fixes clearing suid/sgid bits on write. > > This patch introduced a hang when writing to suid file, fstests > generic/355 could reproduce the hang easily, it only failed the test > without this patch and didn't hang the kernel. > > Should we skip it for now and wait for a further fix? Does Linus's tree have the same problem? > (The 4.6-stable tree faces the same question) Are we just missing a patch to be applied here? And this is already in the released stable kernels... thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html