On Fri 01-11-13 13:21:54, Dan Carpenter wrote: > The if_dqblk struct has a 4 byte hole at the end of the struct so > uninitialized stack information is leaked to user space. > > Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com> Thanks. I've merged the patch into my tree.
Honza > > diff --git a/fs/quota/quota.c b/fs/quota/quota.c > index dea86e8..2b363e2 100644 > --- a/fs/quota/quota.c > +++ b/fs/quota/quota.c > @@ -117,6 +117,7 @@ static int quota_setinfo(struct super_block *sb, int > type, void __user *addr) > > static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src) > { > + memset(dst, 0, sizeof(*dst)); > dst->dqb_bhardlimit = src->d_blk_hardlimit; > dst->dqb_bsoftlimit = src->d_blk_softlimit; > dst->dqb_curspace = src->d_bcount; -- Jan Kara <j...@suse.cz> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/