CVE-2026-72104: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: reject option groups without values The pcache target parses optional arguments as name/value pairs. A table that advertises one optional argument and supplies only a recognized option name, for example "cache_mode", reaches parse_cache_opts() with argc == 1. The parser consumes the name, decrements argc to zero, then calls dm_shift_arg() again for the value. dm_shift_arg() returns NULL when no arguments remain, and the following strcmp() dereferences that NULL pointer. Check that each recognized option has a value before consuming it. This keeps valid "cache_mode writeback" and "data_crc true/false" tables unchanged while making malformed tables fail during target construction with a precise missing-value error.

Засегнати продукти

• Linux Linux: 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди 1247615aadb74c89c1b2f01a6de7df9dab92ecb3; 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди 0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a; 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди d9c631e3fbd44246a2be781d26cfacbb9b8ec127
• Linux Linux: 6.18; преди 6.18; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72104
• https://nvd.nist.gov/vuln/detail/CVE-2026-72104
• https://git.kernel.org/stable/c/1247615aadb74c89c1b2f01a6de7df9dab92ecb3
• https://git.kernel.org/stable/c/0cbe13fe540330d31e5273bbf8cbd66bc7c9cb5a
• https://git.kernel.org/stable/c/d9c631e3fbd44246a2be781d26cfacbb9b8ec127