CVE-2026-74445
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.
Affected versions
Linux kernel versions
4.20
and later are affected. Fixed in
6.6.151,
6.12.103,
6.18.44,
7.1.8,
7.2-rc6
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74445?
CVE-2026-74445 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.20 onward and has been patched in 6.6.151, 6.12.103, 6.18.44 and others. CVE-2026-74445 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74445?
Yes. CVE-2026-74445 has been patched. Fixed versions include 6.6.151, 6.12.103, 6.18.44 and others. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74445 actively exploited?
No. CVE-2026-74445 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.