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CVE-2026-74445: 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/vmwgfx: reject DX_BIND_QUERY without a DX context vmw_cmd_dx_bind_query() unconditionally dereferences sw_context->dx_ctx_node->ctx. Userspace can trigger a NULL pointer dereference from any render-node fd by submitting an execbuf with dx_context_handle == SVGA3D_INVALID_ID and a SVGA_3D_CMD_DX_BIND_QUERY opcode in the command stream: dx_ctx_node is left NULL and the kernel oopses on the assignment. The same NULL is then re-read in vmw_resources_reserve() via vmw_context_get_dx_query_mob(). All sibling DX handlers fail-close on a missing dx_ctx_node using VMW_GET_CTX_NODE(). Use the same pattern here, returning -EINVAL up front before any relocation state is published.

    Засегнати продукти

    • Linux Linux: 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди 6af8f0571b4f07e9b102641f195e0ae3cd3a6c71; 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди 7eae011829f94a76470ec76f016805f508437755; 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди 0634d50e8b398c25bd07c96b048e484d22688c26; 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди e479240a1e076ba1104236331abd62400bf1d495; 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди 6b1eb0b63cc153e1c0cb5ab8350950119be11947; 9c079b8ce8bf8e0394149eb39c78b04285644bcc преди 55ec09c9ce10b1272802c7ab6c1be2ea0dbc68db
    • Linux Linux: 4.20; преди 4.20; 6.1.191 до 6.1.*; 6.6.151 до 6.6.*; 6.12.103 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; 7.2 до *

    История

    • 15 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-74445: Linux | freedomonline.bg