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CVE-2026-80539: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: disallow multiple FENCE chunks in one submit amdgpu_cs_pass1() dispatches on chunk_id once per chunk without rejecting repeated ids. p->uf_bo is a single-slot field, so a submission carrying two AMDGPU_CHUNK_ID_FENCE chunks runs amdgpu_cs_p1_user_fence() twice, and the second run overwrites p->uf_bo with a freshly referenced BO without dropping the reference taken by the first. amdgpu_cs_parser_fini() only unrefs the final p->uf_bo, so every FENCE chunk but the last leaks a BO reference. The leaked BO outlives handle close and process exit. Reject duplicate FENCE chunks the same way commit fec5f8e8c6bc ("drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit") did for p->bo_list. (cherry picked from commit 665b1fc2a1845206408f9a2c6da67101789edb82)

    Засегнати продукти

    • Linux Linux: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди 7e9954e7212042ec808b06181b365b14f00c6f0a; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди 070229262ede37d17c4ea596650deb6e5eb5d106; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди 5f46322e0b84af29e10eb951ff45bd6ea40640de; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди 71aa45f7bfe46fbc6f51e7832573ff49b6005fea; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди e3ee74d6dbbe409eb99546a7b0a02b2782f9021d; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 преди 931cd1d1baeae68e8eb2c23bc1f3d8934dca6241
    • Linux Linux: 4.2; преди 4.2; 6.1.185 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

    История

    • 26 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80539: Linux | freedomonline.bg