{"api_version":"1","generated_at":"2026-11-06T14:11:31+00:00","cve":"CVE-2026-99118","urls":{"html":"https://cve.report/CVE-2026-99118","api":"https://cve.report/api/cve/CVE-2026-99118.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-99118","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-99118"},"summary":{"title":"drm/i915/dmc: Harden DMC firmware payload parsing","description":"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)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-28 11:17:31","updated_at":"2026-10-30 13:21:46"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0e396088fa5c1f96ff43de29c2a2f8807078723d","name":"https://git.kernel.org/stable/c/0e396088fa5c1f96ff43de29c2a2f8807078723d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/53068cf3851dd4e00e8e668563e0353d9d79a98b","name":"https://git.kernel.org/stable/c/53068cf3851dd4e00e8e668563e0353d9d79a98b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e33921271d4438f4a24014f560e5ab297d7eda3f","name":"https://git.kernel.org/stable/c/e33921271d4438f4a24014f560e5ab297d7eda3f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4589ad76a6b1011538600ad398baf0b7d73a1252","name":"https://git.kernel.org/stable/c/4589ad76a6b1011538600ad398baf0b7d73a1252","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8bb1858db453cd4250e3b633f5d2d09206024ca6","name":"https://git.kernel.org/stable/c/8bb1858db453cd4250e3b633f5d2d09206024ca6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa","name":"https://git.kernel.org/stable/c/dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d","name":"https://git.kernel.org/stable/c/05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eb7a0ba650d607976d1a0a5e7501d3f14b35d026","name":"https://git.kernel.org/stable/c/eb7a0ba650d607976d1a0a5e7501d3f14b35d026","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-99118","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99118","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eb805623d8b161342ed9c9caf366f0a295041a6d 0e396088fa5c1f96ff43de29c2a2f8807078723d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eb805623d8b161342ed9c9caf366f0a295041a6d 53068cf3851dd4e00e8e668563e0353d9d79a98b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eb805623d8b161342ed9c9caf366f0a295041a6d e33921271d4438f4a24014f560e5ab297d7eda3f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eb805623d8b161342ed9c9caf366f0a295041a6d 4589ad76a6b1011538600ad398baf0b7d73a1252 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:05:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/i915/display/intel_dmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0e396088fa5c1f96ff43de29c2a2f8807078723d","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"53068cf3851dd4e00e8e668563e0353d9d79a98b","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"e33921271d4438f4a24014f560e5ab297d7eda3f","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"4589ad76a6b1011538600ad398baf0b7d73a1252","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"eb7a0ba650d607976d1a0a5e7501d3f14b35d026","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"},{"lessThan":"8bb1858db453cd4250e3b633f5d2d09206024ca6","status":"affected","version":"eb805623d8b161342ed9c9caf366f0a295041a6d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/i915/display/intel_dmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.2"},{"lessThan":"4.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.273","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.224","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.191","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.161","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.115","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.59","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.273","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.224","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.191","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.161","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.115","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.59","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.13","versionStartIncluding":"4.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"4.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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)"}],"providerMetadata":{"dateUpdated":"2026-10-30T12:41:55.667Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-99118","datePublished":"2026-10-28T10:34:34.627Z","dateReserved":"2026-09-25T10:25:14.393Z","dateUpdated":"2026-10-30T12:41:55.667Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-28 11:17:31","lastModifiedDate":"2026-10-30 13:21:46","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"99118","Ordinal":"1","Title":"drm/i915/dmc: Harden DMC firmware payload parsing","CVE":"CVE-2026-99118","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"99118","Ordinal":"1","NoteData":"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)","Type":"Description","Title":"drm/i915/dmc: Harden DMC firmware payload parsing"}]}}}