CVE-2026-23354: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: x86/fred: Correct speculative safety in fred_extint() array_index_nospec() is no use if the result gets spilled to the stack, as it makes the believed safe-under-speculation value subject to memory predictions. For all practical purposes, this means array_index_nospec() must be used in the expression that accesses the array. As the code currently stands, it's the wrong side of irqentry_enter(), and 'index' is put into %ebp across the function call. Remove the index variable and reposition array_index_nospec(), so it's calculated immediately before the array access.

Засегнати продукти

• Linux Linux: 14619d912b658ecd9573fb88400d3830a29cadcb преди 3bc5887b0a2b06d2d9c22f1f4f8500490b3ae643; 14619d912b658ecd9573fb88400d3830a29cadcb преди e58f1a9b0677de24dcfee0b21393446ec92ff120; 14619d912b658ecd9573fb88400d3830a29cadcb преди 92caa5274b99cb6729177232a029ce0dfa6c5f7b; 14619d912b658ecd9573fb88400d3830a29cadcb преди aa280a08e7d8fae58557acc345b36b3dc329d595
• Linux Linux: 6.9; преди 6.9; 6.12.77 до 6.12.*; 6.18.17 до 6.18.*; 6.19.7 до 6.19.*; от 7.0 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-2026-23354
• https://nvd.nist.gov/vuln/detail/CVE-2026-23354
• https://git.kernel.org/stable/c/3bc5887b0a2b06d2d9c22f1f4f8500490b3ae643
• https://git.kernel.org/stable/c/e58f1a9b0677de24dcfee0b21393446ec92ff120
• https://git.kernel.org/stable/c/92caa5274b99cb6729177232a029ce0dfa6c5f7b
• https://git.kernel.org/stable/c/aa280a08e7d8fae58557acc345b36b3dc329d595