CVE-2026-68276: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx: fix cleaner shader IB buffer overflow The cleaner shader sysfs path allocates a 16-dword (64 byte) IB but incorrectly fills (align_mask + 1) dwords. On GFX rings align_mask is 0xff, so the loop wrote 256 dwords into a 64-byte buffer, causing a kernel page fault. The IB only needs to be a minimal NOP shell to schedule the job; the cleaner shader itself is emitted on the ring via emit_cleaner_shader(). Fill 16 dwords to match the allocation. v2: Use ib_size_dw variable (Lijo) (cherry picked from commit bf21af331ebf72d0935fd70c73192414a422c03a)

Засегнати продукти

• Linux Linux: d361ad5d2fc0e4d59d5d538092c9b37889756642 преди 201633f47b542a99bb7baafdfcda7781249fb3d9; d361ad5d2fc0e4d59d5d538092c9b37889756642 преди e28420e36542ae8b66a5bdcec419525f521bddf8; d361ad5d2fc0e4d59d5d538092c9b37889756642 преди 9cd9a983769a4d0e9cc80a287316ee79685d38b3; d361ad5d2fc0e4d59d5d538092c9b37889756642 преди 3e864bf2a32a1cbdf1e0f9c5a5a4176e8575f4a3
• Linux Linux: 6.12; преди 6.12; 6.12.103 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 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-2026-68276
• https://nvd.nist.gov/vuln/detail/CVE-2026-68276
• https://git.kernel.org/stable/c/201633f47b542a99bb7baafdfcda7781249fb3d9
• https://git.kernel.org/stable/c/e28420e36542ae8b66a5bdcec419525f521bddf8
• https://git.kernel.org/stable/c/9cd9a983769a4d0e9cc80a287316ee79685d38b3
• https://git.kernel.org/stable/c/3e864bf2a32a1cbdf1e0f9c5a5a4176e8575f4a3