{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99118","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.393Z","datePublished":"2026-10-28T10:34:34.627Z","dateUpdated":"2026-10-30T12:41:55.667Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-30T12:41:55.667Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/dmc: Harden DMC firmware payload parsing\n\nValidate the conversion of the DMC firmware size from dwords to bytes\nusing check_mul_overflow() before calculating the firmware payload size.\n\nReject zero-length payloads and zero MMIO counts in the DMC firmware\nheader so malformed firmware is caught early. Also set dmc_fw_size only\nafter the payload allocation succeeds.\n\n(cherry picked from commit efde6601a1f1daedfe3dcc2816c934ddb44e3eef)"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/i915/display/intel_dmc.c"],"versions":[{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"0e396088fa5c1f96ff43de29c2a2f8807078723d","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"53068cf3851dd4e00e8e668563e0353d9d79a98b","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"e33921271d4438f4a24014f560e5ab297d7eda3f","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"4589ad76a6b1011538600ad398baf0b7d73a1252","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"eb7a0ba650d607976d1a0a5e7501d3f14b35d026","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d","status":"affected","versionType":"git"},{"version":"eb805623d8b161342ed9c9caf366f0a295041a6d","lessThan":"8bb1858db453cd4250e3b633f5d2d09206024ca6","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/i915/display/intel_dmc.c"],"versions":[{"version":"4.2","status":"affected"},{"version":"0","lessThan":"4.2","status":"unaffected","versionType":"semver"},{"version":"5.10.273","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.224","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.191","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.161","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.115","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.59","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.13","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"4.2","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.115"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.18.59"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.2.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0e396088fa5c1f96ff43de29c2a2f8807078723d"},{"url":"https://git.kernel.org/stable/c/53068cf3851dd4e00e8e668563e0353d9d79a98b"},{"url":"https://git.kernel.org/stable/c/e33921271d4438f4a24014f560e5ab297d7eda3f"},{"url":"https://git.kernel.org/stable/c/4589ad76a6b1011538600ad398baf0b7d73a1252"},{"url":"https://git.kernel.org/stable/c/eb7a0ba650d607976d1a0a5e7501d3f14b35d026"},{"url":"https://git.kernel.org/stable/c/dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa"},{"url":"https://git.kernel.org/stable/c/05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d"},{"url":"https://git.kernel.org/stable/c/8bb1858db453cd4250e3b633f5d2d09206024ca6"}],"title":"drm/i915/dmc: Harden DMC firmware payload parsing","x_generator":{"engine":"bippy-1.2.0"}}}}