CVE-2026-80945: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - unmap dst before software fallback on decompress On a hardware analytics error, decompress retries through the software fallback, which writes req->dst with the CPU while it is still mapped DMA_FROM_DEVICE. With SWIOTLB active the later dma_unmap_sg() copies the stale bounce buffer over req->dst, corrupting the result. Unmap before the fallback runs. The async path unmaps inline; the sync path signals the retry with -EAGAIN so iaa_comp_adecompress() runs the fallback after unmapping.

Засегнати продукти

• Linux Linux: 2ec6761df889fdf896fde761abd447596dd8f8c2 преди c0279e5ea2aad99d8b91f1a6579d751cc9eb2408; 2ec6761df889fdf896fde761abd447596dd8f8c2 преди fc933a4a419ba8a75da28666a018602c44846953; 2ec6761df889fdf896fde761abd447596dd8f8c2 преди fcd86180ef78b0e41763faef7c6d2de7dfb50c1a; 2ec6761df889fdf896fde761abd447596dd8f8c2 преди 94a25930477113730372e0fa2985da4c5ac95c9a
• Linux Linux: 6.8; преди 6.8; 6.12.111 до 6.12.*; 6.18.51 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 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-2026-80945
• https://nvd.nist.gov/vuln/detail/CVE-2026-80945
• https://git.kernel.org/stable/c/c0279e5ea2aad99d8b91f1a6579d751cc9eb2408
• https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953
• https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a
• https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a