{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80887","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.799Z","datePublished":"2026-09-04T17:11:04.063Z","dateUpdated":"2026-09-04T17:11:04.063Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-04T17:11:04.063Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: use check_add_overflow for shader size+offset bound\n\nvmw_shader_define() validates the user-supplied shader window against\nits backing buffer with\n\n\t(u64)buffer->tbo.base.size < (u64)size + (u64)offset\n\ndrm_vmw_shader_create_arg::offset is __u64 in the uapi; when it is\nnear U64_MAX the unsigned addition wraps and the resulting tiny value\npasses the check.  The unbounded offset is then stored in\nres->guest_memory_offset and forwarded to host SVGA shader-create\ncommands.\n\nUse check_add_overflow() to detect the wrap and compare the resulting\nendpoint against the buffer size."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vmwgfx/vmwgfx_shader.c"],"versions":[{"version":"668b206601c5f5063e03b76784a0d3024fa2b249","lessThan":"1bbe7751f5ebac383405ef29a66622d65bd505d3","status":"affected","versionType":"git"},{"version":"668b206601c5f5063e03b76784a0d3024fa2b249","lessThan":"d3f44438aa805270aaead3b6840ccaea0f4c11f9","status":"affected","versionType":"git"},{"version":"668b206601c5f5063e03b76784a0d3024fa2b249","lessThan":"cfd163169af3be56eaef113c680ea251f0d09189","status":"affected","versionType":"git"},{"version":"668b206601c5f5063e03b76784a0d3024fa2b249","lessThan":"5c725901908eb1e52a16fc0e2373cb761df42d21","status":"affected","versionType":"git"},{"version":"668b206601c5f5063e03b76784a0d3024fa2b249","lessThan":"54d56d5b42d2e4c72ba6e365e9774da90698aa22","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/vmwgfx/vmwgfx_shader.c"],"versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","status":"unaffected","versionType":"semver"},{"version":"6.6.151","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.103","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.151"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.103"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1bbe7751f5ebac383405ef29a66622d65bd505d3"},{"url":"https://git.kernel.org/stable/c/d3f44438aa805270aaead3b6840ccaea0f4c11f9"},{"url":"https://git.kernel.org/stable/c/cfd163169af3be56eaef113c680ea251f0d09189"},{"url":"https://git.kernel.org/stable/c/5c725901908eb1e52a16fc0e2373cb761df42d21"},{"url":"https://git.kernel.org/stable/c/54d56d5b42d2e4c72ba6e365e9774da90698aa22"}],"title":"drm/vmwgfx: use check_add_overflow for shader size+offset bound","x_generator":{"engine":"bippy-1.2.0"}}}}