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From 589b0691e59f761ccb05ddb8e1124991440db2c7 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Thu, 14 Nov 2024 09:57:08 +1100
Subject: [PATCH] prevent information leak off the stack
prevent leak of uninitialised stack data in hash_search
CVE: CVE-2024-12085
Upstream-Status: Backport [https://git.samba.org/?p=rsync.git;a=commit;h=589b0691e59f761ccb05ddb8e1124991440db2c7]
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
---
match.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/match.c b/match.c
index 36e78ed2..dfd6af2c 100644
--- a/match.c
+++ b/match.c
@@ -147,6 +147,9 @@ static void hash_search(int f,struct sum_struct *s,
int more;
schar *map;
+ // prevent possible memory leaks
+ memset(sum2, 0, sizeof sum2);
+
/* want_i is used to encourage adjacent matches, allowing the RLL
* coding of the output to work more efficiently. */
want_i = 0;
--
2.40.0
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