{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63986", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.025Z", "datePublished": "2026-07-19T14:56:08.203Z", "dateUpdated": "2026-07-19T14:56:08.203Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T14:56:08.203Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\n\nThe goto err label leads to:\n\n\tgenlmsg_cancel(skb, ehdr);\n\treturn ret;\n\nIf ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg.\nThere's nothing to cancel, and passing an error pointer to\ngenlmsg_cancel() would cause a crash."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ethtool/tsinfo.c"], "versions": [{"version": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906", "lessThan": "2008f9bb1ede9b688624a241228b8e54fc74f0f6", "status": "affected", "versionType": "git"}, {"version": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906", "lessThan": "d0d2c5ccd1de28368cebeef74d9c530a60eff9a5", "status": "affected", "versionType": "git"}, {"version": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906", "lessThan": "c3fc9976f686f9a95baf87db9d387f218fd65394", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ethtool/tsinfo.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.35", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.14", "versionEndExcluding": "6.18.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2008f9bb1ede9b688624a241228b8e54fc74f0f6"}, {"url": "https://git.kernel.org/stable/c/d0d2c5ccd1de28368cebeef74d9c530a60eff9a5"}, {"url": "https://git.kernel.org/stable/c/c3fc9976f686f9a95baf87db9d387f218fd65394"}], "title": "ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{}

{"bugzilla": {"description": "kernel: ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure", "id": "2502359", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502359"}, "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-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\nThe goto err label leads to:\ngenlmsg_cancel(skb, ehdr);\nreturn ret;\nIf ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg.\nThere's nothing to cancel, and passing an error pointer to\ngenlmsg_cancel() would cause a crash.", "A flaw was found in the Linux kernel's `ethtool: tsinfo` component. This vulnerability occurs when the `ethnl_tsinfo_prepare_dump()` function fails to properly initialize a generic netlink message (`genlmsg`) but still attempts to cancel it by passing an error pointer. This improper error handling can lead to a system crash, resulting in a Denial of Service (DoS) for the affected system."], "name": "CVE-2026-63986", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63986\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63986\nhttps://lore.kernel.org/linux-cve-announce/2026071903-CVE-2026-63986-0269@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906,2008f9bb1ede9b688624a241228b8e54fc74f0f6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906,d0d2c5ccd1de28368cebeef74d9c530a60eff9a5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906,c3fc9976f686f9a95baf87db9d387f218fd65394)"}}], "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": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.35,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.12,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-21T18:00:04.743242+00:00", "updated": "2026-07-21T18:00:04.743290+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}