CVE-2026-80887
CVE CVE-2026-80887EUVD EUVD-2026-71637Published 2026-09-04T17:11:04.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: use check_add_overflow for shader size+offset bound vmw_shader_define() validates the user-supplied shader window against its backing buffer with (u64)buffer->tbo.base.size < (u64)size + (u64)offset drm_vmw_shader_create_arg::offset is __u64 in the uapi; when it is near U64_MAX the unsigned addition wraps and the resulting tiny value passes the check. The unbounded offset is then stored in res->guest_memory_offset and forwarded to host SVGA shader-create commands. Use check_add_overflow() to detect the wrap and compare the resulting endpoint against the buffer size.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.6.151; 668b206601c5f5063e03b76784a0d3024fa2b249 <54d56d5b42d2e4c72ba6e365e9774da90698aa22; patch: 0; 668b206601c5f5063e03b76784a0d3024fa2b249 <1bbe7751f5ebac383405ef29a66622d65bd505d3; patch: 7.1.8; patch: 6.12.103; patch: 6.18.44; 668b206601c5f5063e03b76784a0d3024fa2b249 <cfd163169af3be56eaef113c680ea251f0d09189; 6.4; 668b206601c5f5063e03b76784a0d3024fa2b249 <d3f44438aa805270aaead3b6840ccaea0f4c11f9; patch: 7.2; 668b206601c5f5063e03b76784a0d3024fa2b249 <5c725901908eb1e52a16fc0e2373cb761df42d21
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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