{"id":"CVE-2026-98892","state":"PUBLISHED","title":"firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Validate BASE_ERROR_EVENT payload size\n\nBASE_ERROR_EVENT carries a variable number of message reports,\nwith the count encoded in error_status. The notification parser used\nthat count without checking whether the received payload contained all\nreported entries.\n\nReject truncated payloads before copying the report array.","publishedAt":"2026-10-23T11:37:52.692Z","updatedAt":"2026-10-26T06:56:18.073Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"4a754704698017ced0b657c92b468035faad00ed","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"28d65a0a46435d48b96b6943c518095dff1602a1","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"890a9c3bf9dae90dcabded9d8e10c708a13779f7","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"c0742f23ec13fb6f5e0cd884323467a6c127d3c2","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"cb77a50d1114c0c9e084176301a8e094d383edfa","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"56e7e64cdd0e7209a58c8ec66028d63387402919","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/base.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/base.c"]}],"references":["https://git.kernel.org/stable/c/4a754704698017ced0b657c92b468035faad00ed","https://git.kernel.org/stable/c/28d65a0a46435d48b96b6943c518095dff1602a1","https://git.kernel.org/stable/c/890a9c3bf9dae90dcabded9d8e10c708a13779f7","https://git.kernel.org/stable/c/c0742f23ec13fb6f5e0cd884323467a6c127d3c2","https://git.kernel.org/stable/c/bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216","https://git.kernel.org/stable/c/cb77a50d1114c0c9e084176301a8e094d383edfa","https://git.kernel.org/stable/c/56e7e64cdd0e7209a58c8ec66028d63387402919"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98892.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98892","state":"PUBLISHED","datePublished":"2026-10-23T11:37:52.692Z","dateUpdated":"2026-10-26T06:56:18.073Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.378Z"},"containers":{"cna":{"title":"firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Validate BASE_ERROR_EVENT payload size\n\nBASE_ERROR_EVENT carries a variable number of message reports,\nwith the count encoded in error_status. The notification parser used\nthat count without checking whether the received payload contained all\nreported entries.\n\nReject truncated payloads before copying the report array."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"4a754704698017ced0b657c92b468035faad00ed","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"28d65a0a46435d48b96b6943c518095dff1602a1","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"890a9c3bf9dae90dcabded9d8e10c708a13779f7","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"c0742f23ec13fb6f5e0cd884323467a6c127d3c2","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"cb77a50d1114c0c9e084176301a8e094d383edfa","versionType":"git"},{"version":"585dfab3fb80e67b3a54790b3d5ef2991feb3950","status":"affected","lessThan":"56e7e64cdd0e7209a58c8ec66028d63387402919","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/base.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/base.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4a754704698017ced0b657c92b468035faad00ed"},{"url":"https://git.kernel.org/stable/c/28d65a0a46435d48b96b6943c518095dff1602a1"},{"url":"https://git.kernel.org/stable/c/890a9c3bf9dae90dcabded9d8e10c708a13779f7"},{"url":"https://git.kernel.org/stable/c/c0742f23ec13fb6f5e0cd884323467a6c127d3c2"},{"url":"https://git.kernel.org/stable/c/bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216"},{"url":"https://git.kernel.org/stable/c/cb77a50d1114c0c9e084176301a8e094d383edfa"},{"url":"https://git.kernel.org/stable/c/56e7e64cdd0e7209a58c8ec66028d63387402919"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-26T06:56:18.073Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}