{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-39978", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.150Z", "datePublished": "2025-10-15T07:55:58.949Z", "dateUpdated": "2026-05-11T21:40:06.488Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:40:06.488Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix potential use after free in otx2_tc_add_flow()\n\nThis code calls kfree_rcu(new_node, rcu) and then dereferences \"new_node\"\nand then dereferences it on the next line. Two lines later, we take\na mutex so I don't think this is an RCU safe region. Re-order it to do\nthe dereferences before queuing up the free."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c"], "versions": [{"version": "68fbff68dbea35f9e6f7649dd22fce492a5aedac", "lessThan": "5723120423a753a220b8b2954b273838b9d7e74a", "status": "affected", "versionType": "git"}, {"version": "68fbff68dbea35f9e6f7649dd22fce492a5aedac", "lessThan": "df2c071061ed52d2225d97b212d27ecedf456b8a", "status": "affected", "versionType": "git"}, {"version": "68fbff68dbea35f9e6f7649dd22fce492a5aedac", "lessThan": "c41b2941a024d4ec7c768e16ffb10a74b188fced", "status": "affected", "versionType": "git"}, {"version": "68fbff68dbea35f9e6f7649dd22fce492a5aedac", "lessThan": "a8a63f27c3a8a3714210d32b12fd0f16d0337414", "status": "affected", "versionType": "git"}, {"version": "68fbff68dbea35f9e6f7649dd22fce492a5aedac", "lessThan": "d9c70e93ec5988ab07ad2a92d9f9d12867f02c56", "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/marvell/octeontx2/nic/otx2_tc.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.155", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.109", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.50", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.10", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "5.14", "versionEndExcluding": "6.1.155"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.16.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5723120423a753a220b8b2954b273838b9d7e74a"}, {"url": "https://git.kernel.org/stable/c/df2c071061ed52d2225d97b212d27ecedf456b8a"}, {"url": "https://git.kernel.org/stable/c/c41b2941a024d4ec7c768e16ffb10a74b188fced"}, {"url": "https://git.kernel.org/stable/c/a8a63f27c3a8a3714210d32b12fd0f16d0337414"}, {"url": "https://git.kernel.org/stable/c/d9c70e93ec5988ab07ad2a92d9f9d12867f02c56"}], "title": "octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix potential use after free in otx2_tc_add_flow()\n\nThis code calls kfree_rcu(new_node, rcu) and then dereferences \"new_node\"\nand then dereferences it on the next line. Two lines later, we take\na mutex so I don't think this is an RCU safe region. Re-order it to do\nthe dereferences before queuing up the free."}], "id": "CVE-2025-39978", "lastModified": "2026-04-15T00:35:42.020", "metrics": {}, "published": "2025-10-15T08:15:35.640", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5723120423a753a220b8b2954b273838b9d7e74a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a8a63f27c3a8a3714210d32b12fd0f16d0337414"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c41b2941a024d4ec7c768e16ffb10a74b188fced"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9c70e93ec5988ab07ad2a92d9f9d12867f02c56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/df2c071061ed52d2225d97b212d27ecedf456b8a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()", "id": "2404094", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2404094"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nocteontx2-pf: Fix potential use after free in otx2_tc_add_flow()\nThis code calls kfree_rcu(new_node, rcu) and then dereferences \"new_node\"\nand then dereferences it on the next line. Two lines later, we take\na mutex so I don't think this is an RCU safe region. Re-order it to do\nthe dereferences before queuing up the free."], "name": "CVE-2025-39978", "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": "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": "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": "2025-10-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39978\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39978\nhttps://lore.kernel.org/linux-cve-announce/2025101558-CVE-2025-39978-d538@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-20T13:27:06.564154+00:00", "updated": "2025-10-20T13:27:06.564188+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}