{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63997", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.026Z", "datePublished": "2026-07-19T14:56:15.965Z", "dateUpdated": "2026-07-19T14:56:15.965Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T14:56:15.965Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: module: avoid leaking a netdev ref on module flash errors\n\nmodule_flash_fw_schedule() is missing undo for setting\nthe \"in_progress\" flag and taking the netdev reference.\nDelay taking these, the device can't disappear while\nwe are holding rtnl_lock."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ethtool/module.c"], "versions": [{"version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "lessThan": "f7b4513e77f9571dc1041a798b93b5c4a4bfc191", "status": "affected", "versionType": "git"}, {"version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "lessThan": "61848c83b9132ab839809fe415ba7802a0aca4f6", "status": "affected", "versionType": "git"}, {"version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "lessThan": "956b134d917fd7e014dc7e39a9b7610c04fcc9ba", "status": "affected", "versionType": "git"}, {"version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "lessThan": "fb7f511d62692661846c47f199e0afe25c2982db", "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/module.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.93", "lessThanOrEqual": "6.12.*", "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": "6.11", "versionEndExcluding": "6.12.93"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191"}, {"url": "https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6"}, {"url": "https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba"}, {"url": "https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db"}], "title": "ethtool: module: avoid leaking a netdev ref on module flash errors", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/ethtool/module.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f7b4513e77f9571dc1041a798b93b5c4a4bfc191", "status": "affected", "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "versionType": "git"}, {"lessThan": "61848c83b9132ab839809fe415ba7802a0aca4f6", "status": "affected", "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "versionType": "git"}, {"lessThan": "956b134d917fd7e014dc7e39a9b7610c04fcc9ba", "status": "affected", "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "versionType": "git"}, {"lessThan": "fb7f511d62692661846c47f199e0afe25c2982db", "status": "affected", "version": "32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/ethtool/module.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.93", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.35", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "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\nethtool: module: avoid leaking a netdev ref on module flash errors\n\nmodule_flash_fw_schedule() is missing undo for setting\nthe \"in_progress\" flag and taking the netdev reference.\nDelay taking these, the device can't disappear while\nwe are holding rtnl_lock."}], "id": "CVE-2026-63997", "lastModified": "2026-07-30T14:51:11.223", "metrics": {}, "published": "2026-07-19T16:17:39.270", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ethtool: module: avoid leaking a netdev ref on module flash errors", "id": "2502469", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502469"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nethtool: module: avoid leaking a netdev ref on module flash errors\nmodule_flash_fw_schedule() is missing undo for setting\nthe \"in_progress\" flag and taking the netdev reference.\nDelay taking these, the device can't disappear while\nwe are holding rtnl_lock.", "A flaw was found in the `ethtool` module of the Linux kernel. The `module_flash_fw_schedule()` function fails to properly undo the setting of the 'in_progress' flag and the taking of the `netdev` reference during module flash errors. This oversight can lead to a resource leak, preventing the device from being properly released while the `rtnl_lock` is held, potentially causing a denial of service."], "name": "CVE-2026-63997", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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-2026-63997\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63997\nhttps://lore.kernel.org/linux-cve-announce/2026071905-CVE-2026-63997-c99c@gregkh/T"], "threat_severity": "Low"}