CVE-2026-98623: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/clk: fix list cursor use after loop in nvkm_clk_ustate_update If list_for_each_entry() exits without hitting a break then "pstate" is not a valid pstate pointer. Introduce a "found" variable instead. The check is reachable from userspace: nvkm_clk_ustate_update() takes the pstate id straight from the 'pstate' debugfs file, so requesting an id that is not in clk->states - or any id at all when the perf tables are broken and the list is empty - makes the pstate->pstate != req test dereference the list head cast to a struct nvkm_pstate, which is an out-of-bounds read. [Francesco: rebased on drm-misc-next, expanded the commit message]

Засегнати продукти

• Linux Linux: 7c856522069755ab9d163a24ac332cd3cb35fe30 преди db5dd9f47b4df1be322f498d846e9a82940a7390; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди 9d550924961f61a491dd95359c63494fa8a23d9f; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди 492e9cfa12f35f7946ea1b78a19f1f9337d62248; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди a867abcfa85ab487066c3d3008a1ba905da04113; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди 5315c7bacfe274ddfe649d9556e9a341ffa812da; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди 0d096a7f7d79207490858dde731b16da5337e90c; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди 391517da7fd54ae40e4a7fe1cc696217343b0061; 7c856522069755ab9d163a24ac332cd3cb35fe30 преди aff09d9e37e02dc60bde79035ac15b136d602259
• Linux Linux: 3.13; преди 3.13; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

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-2026-98623
• https://nvd.nist.gov/vuln/detail/CVE-2026-98623
• https://git.kernel.org/stable/c/db5dd9f47b4df1be322f498d846e9a82940a7390
• https://git.kernel.org/stable/c/9d550924961f61a491dd95359c63494fa8a23d9f
• https://git.kernel.org/stable/c/492e9cfa12f35f7946ea1b78a19f1f9337d62248
• https://git.kernel.org/stable/c/a867abcfa85ab487066c3d3008a1ba905da04113
• https://git.kernel.org/stable/c/5315c7bacfe274ddfe649d9556e9a341ffa812da
• https://git.kernel.org/stable/c/0d096a7f7d79207490858dde731b16da5337e90c
• https://git.kernel.org/stable/c/391517da7fd54ae40e4a7fe1cc696217343b0061
• https://git.kernel.org/stable/c/aff09d9e37e02dc60bde79035ac15b136d602259