[merged mm-hotfixes-stable] decompress_bunzip2-fix-rare-decompression-failure.patch removed from -mm tree

[merged mm-hotfixes-stable] decompress_bunzip2-fix-rare-decompression-failure.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: decompress_bunzip2: fix rare decompression failure
has been removed from the -mm tree.  Its filename was
     decompress_bunzip2-fix-rare-decompression-failure.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Ross Lagerwall <ross.lagerwall@citrix.com>
Subject: decompress_bunzip2: fix rare decompression failure
Date: Wed, 17 Jul 2024 17:20:16 +0100

The decompression code parses a huffman tree and counts the number of
symbols for a given bit length.  In rare cases, there may be >= 256
symbols with a given bit length, causing the unsigned char to overflow. 
This causes a decompression failure later when the code tries and fails to
find the bit length for a given symbol.

Since the maximum number of symbols is 258, use unsigned short instead.

Link: https://lkml.kernel.org/r/20240717162016.1514077-1-ross.lagerwall@citrix.com
Fixes: bc22c17e12c1 ("bzip2/lzma: library support for gzip, bzip2 and lzma decompression")
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Cc: Alain Knaff <alain@knaff.lu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/decompress_bunzip2.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/lib/decompress_bunzip2.c~decompress_bunzip2-fix-rare-decompression-failure
+++ a/lib/decompress_bunzip2.c
@@ -232,7 +232,8 @@ static int INIT get_next_block(struct bu
 	   RUNB) */
 	symCount = symTotal+2;
 	for (j = 0; j < groupCount; j++) {
-		unsigned char length[MAX_SYMBOLS], temp[MAX_HUFCODE_BITS+1];
+		unsigned char length[MAX_SYMBOLS];
+		unsigned short temp[MAX_HUFCODE_BITS+1];
 		int	minLen,	maxLen, pp;
 		/* Read Huffman code lengths for each symbol.  They're
 		   stored in a way similar to mtf; record a starting
_

Patches currently in -mm which might be from ross.lagerwall@citrix.com are