{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98218", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.326Z", "datePublished": "2026-10-06T08:44:54.034Z", "dateUpdated": "2026-10-06T08:44:54.034Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-06T08:44:54.034Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: atr: fix dangling adapter pointer on add failure\n\ni2c_atr_add_adapter() stores atr->adapter[chan_id] before\ni2c_add_adapter() so that the I2C bus notifier can match child clients\nduring registration. On failure the channel is freed but the slot was\nleft pointing at freed memory, which can lead to use-after-free in\ni2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST.\n\nClear the slot on the i2c_add_adapter() error path before freeing chan."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/i2c/i2c-atr.c"], "versions": [{"version": "a076a860acae77bbdcbd316541e5552e81fb1772", "lessThan": "2f5e42edbd232bf705dc5d3a91e06344237e63bb", "status": "affected", "versionType": "git"}, {"version": "a076a860acae77bbdcbd316541e5552e81fb1772", "lessThan": "1093835f6aef58a831298d93e0d93f244fa07b84", "status": "affected", "versionType": "git"}, {"version": "a076a860acae77bbdcbd316541e5552e81fb1772", "lessThan": "eabf7a3d33cd9fad106d267d00cc842434de8e02", "status": "affected", "versionType": "git"}, {"version": "a076a860acae77bbdcbd316541e5552e81fb1772", "lessThan": "a57d9592714506556e30188af72dd3bdb9f647b5", "status": "affected", "versionType": "git"}, {"version": "a076a860acae77bbdcbd316541e5552e81fb1772", "lessThan": "ad34235808b63a70ca4989b7a2852923193d06ef", "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/i2c/i2c-atr.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc4", "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": "6.6", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb"}, {"url": "https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84"}, {"url": "https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02"}, {"url": "https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5"}, {"url": "https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef"}], "title": "i2c: atr: fix dangling adapter pointer on add failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/i2c/i2c-atr.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2f5e42edbd232bf705dc5d3a91e06344237e63bb", "status": "affected", "version": "a076a860acae77bbdcbd316541e5552e81fb1772", "versionType": "git"}, {"lessThan": "1093835f6aef58a831298d93e0d93f244fa07b84", "status": "affected", "version": "a076a860acae77bbdcbd316541e5552e81fb1772", "versionType": "git"}, {"lessThan": "eabf7a3d33cd9fad106d267d00cc842434de8e02", "status": "affected", "version": "a076a860acae77bbdcbd316541e5552e81fb1772", "versionType": "git"}, {"lessThan": "a57d9592714506556e30188af72dd3bdb9f647b5", "status": "affected", "version": "a076a860acae77bbdcbd316541e5552e81fb1772", "versionType": "git"}, {"lessThan": "ad34235808b63a70ca4989b7a2852923193d06ef", "status": "affected", "version": "a076a860acae77bbdcbd316541e5552e81fb1772", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/i2c/i2c-atr.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: atr: fix dangling adapter pointer on add failure\n\ni2c_atr_add_adapter() stores atr->adapter[chan_id] before\ni2c_add_adapter() so that the I2C bus notifier can match child clients\nduring registration. On failure the channel is freed but the slot was\nleft pointing at freed memory, which can lead to use-after-free in\ni2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST.\n\nClear the slot on the i2c_add_adapter() error path before freeing chan."}], "id": "CVE-2026-98218", "lastModified": "2026-10-06T09:18:08.590", "metrics": {}, "published": "2026-10-06T09:18:08.590", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a076a860acae77bbdcbd316541e5552e81fb1772,2f5e42edbd232bf705dc5d3a91e06344237e63bb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a076a860acae77bbdcbd316541e5552e81fb1772,1093835f6aef58a831298d93e0d93f244fa07b84)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a076a860acae77bbdcbd316541e5552e81fb1772,eabf7a3d33cd9fad106d267d00cc842434de8e02)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a076a860acae77bbdcbd316541e5552e81fb1772,a57d9592714506556e30188af72dd3bdb9f647b5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a076a860acae77bbdcbd316541e5552e81fb1772,ad34235808b63a70ca4989b7a2852923193d06ef)"}}], "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": "6.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[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": "2026-10-06T14:45:17.732767+00:00", "updated": "2026-10-06T16:15:02.525742+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}