CVE-2026-98105

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98105", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.316Z", "datePublished": "2026-09-25T10:35:55.142Z", "dateUpdated": "2026-10-19T09:13:57.780Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:13:57.780Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: oa_tc6: Improve the error recovery\n\nWhen oversubscribed traffic causes lot of buffer overflow errors,\nprobably due to loss of data chunks, driver fails to find a\ndata chunk with end_valid bit set, before it runs out of sk buffer\nspace. As a result, assert is seen during skb_put.\n\nNow, check is made if skb buffer has enough tailroom for the\nincoming data before accepting. If there is no room, current\nframe is abandoned and it will start looking for a data chunk\nwith start_valid bit, that is a new frame.\n\nSK buffer allocation error is considered as recoverable error.\n\nrx_buf_overflow flag is too specific and no longer the only\ncondition this flag is used for. Therefore it is renamed as\nwait_until_start_valid. This is more appropriate as this flag\nis used to look for the next data chunk with SV bit set, after\nfailures like buffer overflow, buffer allocation failure, skb pointer\nvalidity besides buffer overflow error.\n\nNot writing to status0 if it reads 0."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/oa_tc6.c"], "versions": [{"version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "lessThan": "d33003e752f25c385f2cf21964123582a44f6818", "status": "affected", "versionType": "git"}, {"version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "lessThan": "9d3f6e714d5f8b728837f31bbe865b64cfd3216a", "status": "affected", "versionType": "git"}, {"version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "lessThan": "b89770d493749d7c3b8649996e1089719b4eff8d", "status": "affected", "versionType": "git"}, {"version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "lessThan": "172c974113bffe5723b80b1acac17593bb50513c", "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/net/ethernet/oa_tc6.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.12", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d33003e752f25c385f2cf21964123582a44f6818"}, {"url": "https://git.kernel.org/stable/c/9d3f6e714d5f8b728837f31bbe865b64cfd3216a"}, {"url": "https://git.kernel.org/stable/c/b89770d493749d7c3b8649996e1089719b4eff8d"}, {"url": "https://git.kernel.org/stable/c/172c974113bffe5723b80b1acac17593bb50513c"}], "title": "net: ethernet: oa_tc6: Improve the error recovery", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/oa_tc6.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d33003e752f25c385f2cf21964123582a44f6818", "status": "affected", "version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "versionType": "git"}, {"lessThan": "9d3f6e714d5f8b728837f31bbe865b64cfd3216a", "status": "affected", "version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "versionType": "git"}, {"lessThan": "b89770d493749d7c3b8649996e1089719b4eff8d", "status": "affected", "version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "versionType": "git"}, {"lessThan": "172c974113bffe5723b80b1acac17593bb50513c", "status": "affected", "version": "d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/oa_tc6.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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\nnet: ethernet: oa_tc6: Improve the error recovery\n\nWhen oversubscribed traffic causes lot of buffer overflow errors,\nprobably due to loss of data chunks, driver fails to find a\ndata chunk with end_valid bit set, before it runs out of sk buffer\nspace. As a result, assert is seen during skb_put.\n\nNow, check is made if skb buffer has enough tailroom for the\nincoming data before accepting. If there is no room, current\nframe is abandoned and it will start looking for a data chunk\nwith start_valid bit, that is a new frame.\n\nSK buffer allocation error is considered as recoverable error.\n\nrx_buf_overflow flag is too specific and no longer the only\ncondition this flag is used for. Therefore it is renamed as\nwait_until_start_valid. This is more appropriate as this flag\nis used to look for the next data chunk with SV bit set, after\nfailures like buffer overflow, buffer allocation failure, skb pointer\nvalidity besides buffer overflow error.\n\nNot writing to status0 if it reads 0."}], "id": "CVE-2026-98105", "lastModified": "2026-10-19T10:18:07.947", "metrics": {}, "published": "2026-09-25T11:17:40.987", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/172c974113bffe5723b80b1acac17593bb50513c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9d3f6e714d5f8b728837f31bbe865b64cfd3216a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b89770d493749d7c3b8649996e1089719b4eff8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d33003e752f25c385f2cf21964123582a44f6818"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Undergoing Analysis"}

{"bugzilla": {"description": "kernel: net: ethernet: oa_tc6: Improve the error recovery", "id": "2541354", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541354"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-617", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: ethernet: oa_tc6: Improve the error recovery\nWhen oversubscribed traffic causes lot of buffer overflow errors,\nprobably due to loss of data chunks, driver fails to find a\ndata chunk with end_valid bit set, before it runs out of sk buffer\nspace. As a result, assert is seen during skb_put.\nNow, check is made if skb buffer has enough tailroom for the\nincoming data before accepting. If there is no room, current\nframe is abandoned and it will start looking for a data chunk\nwith start_valid bit, that is a new frame.\nSK buffer allocation error is considered as recoverable error.\nrx_buf_overflow flag is too specific and no longer the only\ncondition this flag is used for. Therefore it is renamed as\nwait_until_start_valid. This is more appropriate as this flag\nis used to look for the next data chunk with SV bit set, after\nfailures like buffer overflow, buffer allocation failure, skb pointer\nvalidity besides buffer overflow error.\nNot writing to status0 if it reads 0.", "A flaw was found in the Linux kernel's OPEN Alliance TC6 (oa_tc6) Ethernet driver. Under heavy or oversubscribed network traffic, missing frame boundaries can cause the driver to append incoming data without verifying that adequate buffer capacity remains. This condition triggers an internal kernel assertion failure, allowing an attacker on the adjacent network to crash the system and cause a Denial of Service (DoS)."], "name": "CVE-2026-98105", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98105\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98105\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98105.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770,d33003e752f25c385f2cf21964123582a44f6818)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770,d9d3f6e714d5f8b728837f31bbe865b64cfd3216a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770,b89770d493749d7c3b8649996e1089719b4eff8d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d70a0d8f2f2d1b9bb6e3e9dfed25ae3ca3303770,172c974113bffe5723b80b1acac17593bb50513c)"}}], "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": "generic", "value": "6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc2,*]"}}], "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": "2026-09-25T12:00:15.914458+00:00", "updated": "2026-09-30T11:45:16.274435+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}