CVE-2026-80751: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: mfg: initialize prev_o in mtk_mfg_attach_dev() mtk_mfg_attach_dev() reads prev_o on the first iteration of its loop, in "if (prev_o && prev_o->freq == o->freq)", before prev_o is assigned at the end of the loop body. On that first iteration, evaluating prev_o reads an indeterminate value. If it is non-NULL, the condition dereferences a stale or invalid pointer, potentially faulting or incorrectly skipping the first OPP. Initialize prev_o to NULL. This matches the intent as well: there is no previous OPP to compare against on the first iteration. Found with Clang's -Wconditional-uninitialized.

Засегнати продукти

• Linux Linux: f08e7a4e8d6ac4de677727af352ea33c6ce9f444 преди de4eec0dfde8c0e27f8915bbb244d17ff68f2fb4; f08e7a4e8d6ac4de677727af352ea33c6ce9f444 преди 090a95dbe13df9965279b588d97eda134831769c
• Linux Linux: 6.19; преди 6.19; 7.1.10 до 7.1.*; 7.2 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80751
• https://nvd.nist.gov/vuln/detail/CVE-2026-80751
• https://git.kernel.org/stable/c/de4eec0dfde8c0e27f8915bbb244d17ff68f2fb4
• https://git.kernel.org/stable/c/090a95dbe13df9965279b588d97eda134831769c