From: Alex Chiang <achiang@hp.com>
Date: Tue, 1 Apr 2008 15:21:40 +0000 (-0400)
Subject: btrfs-progs: Stop stomping on 'name' input parameter
X-Git-Tag: Ubuntu-5.13.0-19.19~37792^2~9^2~55^2~56^2~30^2~255
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=140dfd00ae544cdc0c9951b80ad6df61e62859e2;p=mirror_ubuntu-jammy-kernel.git

btrfs-progs: Stop stomping on 'name' input parameter

In btrfs_name_hash, Local variable 'buf' is declared as

	__u32 buf[2];

but we then try to do this:

	buf[0] = 0x67452301;
	buf[1] = 0xefcdab89;
	buf[2] = 0x98badcfe;
	buf[3] = 0x10325476;

Oops. Fix buf to be the proper size.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c
index d5252f5c9d01..21037cfca9bd 100644
--- a/fs/btrfs/hash.c
+++ b/fs/btrfs/hash.c
@@ -81,7 +81,7 @@ u64 btrfs_name_hash(const char *name, int len)
 	__u32	hash;
 	__u32	minor_hash = 0;
 	const char	*p;
-	__u32		in[8], buf[2];
+	__u32		in[8], buf[4];
 	u64		hash_result;
 
 	if (len == 1 && *name == '.') {