From: Jeff Dike <jdike@addtoit.com>
Date: Mon, 27 Mar 2006 09:14:41 +0000 (-0800)
Subject: [PATCH] uml: fix hostfs stack corruption
X-Git-Tag: firefly_0821_release~36884
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=86c79cbcee7d617c5aaf9b4f7e6cc093397d3451;p=firefly-linux-kernel-4.4.55.git

[PATCH] uml: fix hostfs stack corruption

Noted by Oleg Drokin:
We initialized an extra slot of struct kstatfs.spare, sometimes
causing stack corruption.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Oleg Drokin <green@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c
index b97809deba66..23b7cee72123 100644
--- a/fs/hostfs/hostfs_user.c
+++ b/fs/hostfs/hostfs_user.c
@@ -360,7 +360,6 @@ int do_statfs(char *root, long *bsize_out, long long *blocks_out,
 	spare_out[2] = buf.f_spare[2];
 	spare_out[3] = buf.f_spare[3];
 	spare_out[4] = buf.f_spare[4];
-	spare_out[5] = buf.f_spare[5];
 	return(0);
 }