{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52912", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.366Z", "datePublished": "2026-06-24T07:14:10.583Z", "dateUpdated": "2026-06-28T06:36:30.468Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:36:30.468Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_queue: hold bridge skb->dev while queued\n\nbr_pass_frame_up() rewrites skb->dev from the ingress port to the bridge\nmaster before queueing bridge LOCAL_IN packets. NFQUEUE only holds\nreferences on state.in/out and bridge physdevs, so a queued bridge\npacket can retain a freed bridge master in skb->dev until reinjection.\n\nWhen the verdict is reinjected later, br_netif_receive_skb() re-enters\nthe receive path with skb->dev still pointing at the freed bridge master,\ntriggering a use-after-free.\n\nStore skb->dev in the queue entry, hold a reference on it for the queue\nlifetime, and use the saved device when dropping queued packets during\nNETDEV_DOWN handling."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/netfilter/nf_queue.h", "net/netfilter/nf_queue.c", "net/netfilter/nfnetlink_queue.c"], "versions": [{"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "950d809f154dca04e5fbe5d3c8b9c5e44769cd57", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "a698ac8ab2561cf575d2d9f34095032651dd952e", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "19924bdd8a45ebc72a7b84c57fd63057d1dc75ac", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "3823c27099cfe2482299065814adbaa771be9644", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "15d464265120ab9818bd673af301deee09bedab2", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "3fb0f5c0f64162a8c3f25616a4f1e340b921737f", "status": "affected", "versionType": "git"}, {"version": "ac28634456867b23b95faccba7997a62ec430603", "lessThan": "e196115ec330a18de415bdb9f5071aa9f08e53ce", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/netfilter/nf_queue.h", "net/netfilter/nf_queue.c", "net/netfilter/nfnetlink_queue.c"], "versions": [{"version": "4.7", "status": "affected"}, {"version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.259", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "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": "4.7", "versionEndExcluding": "5.10.259"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/950d809f154dca04e5fbe5d3c8b9c5e44769cd57"}, {"url": "https://git.kernel.org/stable/c/a698ac8ab2561cf575d2d9f34095032651dd952e"}, {"url": "https://git.kernel.org/stable/c/19924bdd8a45ebc72a7b84c57fd63057d1dc75ac"}, {"url": "https://git.kernel.org/stable/c/1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be"}, {"url": "https://git.kernel.org/stable/c/3823c27099cfe2482299065814adbaa771be9644"}, {"url": "https://git.kernel.org/stable/c/15d464265120ab9818bd673af301deee09bedab2"}, {"url": "https://git.kernel.org/stable/c/3fb0f5c0f64162a8c3f25616a4f1e340b921737f"}, {"url": "https://git.kernel.org/stable/c/e196115ec330a18de415bdb9f5071aa9f08e53ce"}], "title": "netfilter: nf_queue: hold bridge skb->dev while queued", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: netfilter: nf_queue: hold bridge skb->dev while queued", "id": "2492105", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492105"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's netfilter component. This vulnerability occurs because a queued bridge packet can retain a freed bridge master in its skb->dev field until it is reinjected. When the packet is later reinjected, the system attempts to use the freed bridge master, leading to a use-after-free condition. This can result in system instability or a denial of service."], "name": "CVE-2026-52912", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52912\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52912\nhttps://lore.kernel.org/linux-cve-announce/2026062426-CVE-2026-52912-9506@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,950d809f154dca04e5fbe5d3c8b9c5e44769cd57)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,a698ac8ab2561cf575d2d9f34095032651dd952e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,19924bdd8a45ebc72a7b84c57fd63057d1dc75ac)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,3823c27099cfe2482299065814adbaa771be9644)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,15d464265120ab9818bd673af301deee09bedab2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,3fb0f5c0f64162a8c3f25616a4f1e340b921737f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ac28634456867b23b95faccba7997a62ec430603,e196115ec330a18de415bdb9f5071aa9f08e53ce)"}}], "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": "4.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,4.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.259,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.209,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.175,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.142,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.92,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.34,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.11,7.1.0)"}}, {"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": "2026-06-24T13:15:15.414862+00:00", "updated": "2026-06-28T14:00:21.087713+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}