{"id":"CVE-2026-81007","revision":"e04a0b97e22f429ba644cca89e2df157","records":[{"revision":"e04a0b97e22f429ba644cca89e2df157","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81007","aliases":[],"title":"ipmi: ipmb: validate write message length","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ipmb: validate write message length\n\nipmb_write() read message fields before validating the length byte.\n\nA zero or short write can read uninitialized stack bytes.\n\nA length smaller than the SMBus header underflows the block write length.\n\nRequire a non-empty buffer and the minimum IPMB request length.\n\nAlso require the length byte plus payload before parsing the message.","state":0,"publishedAt":"2026-09-11T19:42:58.751+00:00","modifiedAt":"2026-10-19T08:46:32.534+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/char/ipmi/ipmb_dev_int.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"94f8d20153e348c79bc14dc25f873470518892da\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"e527cd4e80066e1ed070fdc7c705bde340cdcc62\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"7d66d54b974cff0a959e188af844d2d110422767\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"60939bcda6f3f104ef456fdbf3cc5733c0720fb1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"5719431ca2b5fa26560bb38f6202f8b97fa3bbb0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"a84c6e3d188f2c6e674910929eb790634299d6d5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"51bd6f291583684f495ea498984dfc22049d7fd2\",\n                            \"lessThan\": \"53637506884dbd5c91a89b1a3547d99d80f8ed2c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/char/ipmi/ipmb_dev_int.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.109\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89","https://git.kernel.org/stable/c/94f8d20153e348c79bc14dc25f873470518892da","https://git.kernel.org/stable/c/e527cd4e80066e1ed070fdc7c705bde340cdcc62","https://git.kernel.org/stable/c/7d66d54b974cff0a959e188af844d2d110422767","https://git.kernel.org/stable/c/60939bcda6f3f104ef456fdbf3cc5733c0720fb1","https://git.kernel.org/stable/c/5719431ca2b5fa26560bb38f6202f8b97fa3bbb0","https://git.kernel.org/stable/c/a84c6e3d188f2c6e674910929eb790634299d6d5","https://git.kernel.org/stable/c/53637506884dbd5c91a89b1a3547d99d80f8ed2c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81007","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81007","identifiers":["CVE-2026-81007"]},"retained":false,"historicalAffected":[]}],"coverage":[]}