This is a note to let you know that I've just added the patch titled
KMSAN: uninit-value in inode_go_dump (5)
to the 6.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kmsan-uninit-value-in-inode_go_dump-5.patch
and it can be found in the queue-6.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 47256fd4fb191e5643761264adf919e9cc1d43df
Author: Qianqiang Liu <qianqiang.liu@xxxxxxx>
Date: Mon Oct 21 22:58:01 2024 +0200
KMSAN: uninit-value in inode_go_dump (5)
[ Upstream commit f9417fcfca3c5e30a0b961e7250fab92cfa5d123 ]
When mounting of a corrupted disk image fails, the error message printed
can reference uninitialized inode fields. To prevent that from happening,
always initialize those fields.
Reported-by: syzbot+aa0730b0a42646eb1359@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Qianqiang Liu <qianqiang.liu@xxxxxxx>
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index e22c1edc32b39..b9cef63c78717 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1537,11 +1537,13 @@ static struct inode *gfs2_alloc_inode(struct super_block *sb)
if (!ip)
return NULL;
ip->i_no_addr = 0;
+ ip->i_no_formal_ino = 0;
ip->i_flags = 0;
ip->i_gl = NULL;
gfs2_holder_mark_uninitialized(&ip->i_iopen_gh);
memset(&ip->i_res, 0, sizeof(ip->i_res));
RB_CLEAR_NODE(&ip->i_res.rs_node);
+ ip->i_diskflags = 0;
ip->i_rahead = 0;
return &ip->i_inode;
}
