Ross Lagerwall bf6acd5d16 decompress_bunzip2: fix rare decompression failure
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>
2024-07-26 14:33:09 -07:00
..
2024-01-19 11:59:11 -08:00
2024-07-16 14:24:29 -07:00
2024-07-12 16:39:53 -07:00
2024-02-01 13:06:40 +01:00
2023-11-03 07:08:36 -10:00
2022-03-07 12:48:35 -07:00
2021-08-19 09:02:55 +09:00
2024-04-25 21:07:06 -07:00
2023-02-02 22:50:01 -08:00
2023-02-02 22:50:01 -08:00
2024-05-21 15:29:01 -07:00
2022-03-07 12:48:35 -07:00
2022-04-29 14:38:01 -07:00
2022-10-03 14:03:21 -07:00
2024-03-11 09:38:17 -07:00
2021-08-19 09:02:55 +09:00
2024-06-25 17:15:06 -07:00
2024-04-25 21:07:05 -07:00
2024-05-22 11:53:02 -07:00
2023-08-21 13:46:25 -07:00
2023-04-17 18:01:23 +02:00
2021-07-08 11:48:20 -07:00
2023-10-16 12:44:06 -04:00
2023-08-24 16:20:18 -07:00
2023-10-16 12:44:06 -04:00
2024-07-16 17:42:14 -07:00
2022-10-03 17:34:32 -07:00
2024-07-04 23:43:10 -07:00
2021-07-08 11:48:20 -07:00
2024-02-15 12:17:28 -05:00
2022-06-03 10:34:34 -07:00
2024-02-20 20:47:32 -08:00
2021-06-18 11:43:09 +02:00
2024-05-21 15:29:01 -07:00
2024-06-10 11:14:52 +01:00
2024-05-19 16:12:38 -07:00
2024-05-02 17:48:09 -04:00