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From 5830876a0cca17bef3b2d54908928e72cca53502 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Tue, 6 Dec 2022 08:37:52 +1030
Subject: [PATCH] PR29855, ch_type in bfd_init_section_decompress_status can be
uninitialized
PR 29855
* compress.c (bfd_init_section_decompress_status): Set ch_type
to zero for zlib-gnu case.
Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5830876a0cca17bef3b2d54908928e72cca53502]
CVE: CVE-2023-25586
Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
---
bfd/compress.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/bfd/compress.c b/bfd/compress.c
index 3d8c1d769f1..6b083468ca8 100644
--- a/bfd/compress.c
+++ b/bfd/compress.c
@@ -1012,7 +1012,7 @@ bfd_init_section_decompress_status (bfd *abfd, sec_ptr sec)
return false;
}
uncompressed_size = bfd_getb64 (header + 4);
- ch_type = ch_none;
+ ch_type = 0;
}
else if (!bfd_check_compression_header (abfd, header, sec,
&ch_type,
--
2.31.1
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