{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43221", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.994Z", "datePublished": "2026-05-06T11:28:21.579Z", "dateUpdated": "2026-05-06T11:28:21.579Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-06T11:28:21.579Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ipmb: initialise event handler read bytes\n\nIPMB doesn't use i2c reads, but the handler needs to set a value.\nOtherwise an i2c read will return an uninitialised value from the bus\ndriver."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/char/ipmi/ipmi_ipmb.c"], "versions": [{"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "905554ebd76aeee370bfd5136ea11e0b9d75c6f1", "status": "affected", "versionType": "git"}, {"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "56d5c0557e53c4d8d92a619fa83eaae178165e07", "status": "affected", "versionType": "git"}, {"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "2dfbc8c17dd161885336e77e71c336cd62cf6748", "status": "affected", "versionType": "git"}, {"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "f726b3a57e00bb6249c67714c11ae8b4b31719a1", "status": "affected", "versionType": "git"}, {"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "102712417bb6aa9a00d852bc59cb0a276db486c4", "status": "affected", "versionType": "git"}, {"version": "63c4eb347164845b380089012fe43992511c0ad3", "lessThan": "9f235ccecd03c436cb1683eac16b12f119e54aa9", "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/char/ipmi/ipmi_ipmb.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "5.16", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/905554ebd76aeee370bfd5136ea11e0b9d75c6f1"}, {"url": "https://git.kernel.org/stable/c/56d5c0557e53c4d8d92a619fa83eaae178165e07"}, {"url": "https://git.kernel.org/stable/c/2dfbc8c17dd161885336e77e71c336cd62cf6748"}, {"url": "https://git.kernel.org/stable/c/f726b3a57e00bb6249c67714c11ae8b4b31719a1"}, {"url": "https://git.kernel.org/stable/c/102712417bb6aa9a00d852bc59cb0a276db486c4"}, {"url": "https://git.kernel.org/stable/c/9f235ccecd03c436cb1683eac16b12f119e54aa9"}], "title": "ipmi: ipmb: initialise event handler read bytes", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: ipmb: initialise event handler read bytes\n\nIPMB doesn't use i2c reads, but the handler needs to set a value.\nOtherwise an i2c read will return an uninitialised value from the bus\ndriver."}], "id": "CVE-2026-43221", "lastModified": "2026-05-06T13:07:51.607", "metrics": {}, "published": "2026-05-06T12:16:41.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/102712417bb6aa9a00d852bc59cb0a276db486c4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2dfbc8c17dd161885336e77e71c336cd62cf6748"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/56d5c0557e53c4d8d92a619fa83eaae178165e07"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/905554ebd76aeee370bfd5136ea11e0b9d75c6f1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9f235ccecd03c436cb1683eac16b12f119e54aa9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f726b3a57e00bb6249c67714c11ae8b4b31719a1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,905554ebd76aeee370bfd5136ea11e0b9d75c6f1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,56d5c0557e53c4d8d92a619fa83eaae178165e07)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,2dfbc8c17dd161885336e77e71c336cd62cf6748)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,f726b3a57e00bb6249c67714c11ae8b4b31719a1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,102712417bb6aa9a00d852bc59cb0a276db486c4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[63c4eb347164845b380089012fe43992511c0ad3,9f235ccecd03c436cb1683eac16b12f119e54aa9)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-06T16:45:07.231898+00:00", "updated": "2026-05-06T21:30:12.409169+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-788"]}