CVE-2026-74445drm/vmwgfx: reject DX_BIND_QUERY without a DX context
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 9c079b8ce8bf8e0394149eb39c78b04285644bcc builds before 7eae011829f94a76470ec76f016805f508437755; from 9c079b8ce8bf8e0394149eb39c78b04285644bcc before 0634d50e8b398c25bd07c96b048e484d22688c26; from 9c079b8ce8bf8e0394149eb39c78b04285644bcc before e479240a1e076ba1104236331abd62400bf1d495; 9c079b8ce8bf8e0394149eb39c78b04285644bcc builds before 6b1eb0b63cc153e1c0cb5ab8350950119be11947; from 9c079b8ce8bf8e0394149eb39c78b04285644bcc before 55ec09c9ce10b1272802c7ab6c1be2ea0dbc68db | CNA record |
References
- https://git.kernel.org/stable/c/7eae011829f94a76470ec76f016805f508437755
- https://git.kernel.org/stable/c/0634d50e8b398c25bd07c96b048e484d22688c26
- https://git.kernel.org/stable/c/e479240a1e076ba1104236331abd62400bf1d495
- https://git.kernel.org/stable/c/6b1eb0b63cc153e1c0cb5ab8350950119be11947
- https://git.kernel.org/stable/c/55ec09c9ce10b1272802c7ab6c1be2ea0dbc68db
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.