{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43481", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.012Z", "datePublished": "2026-05-13T15:08:29.116Z", "dateUpdated": "2026-05-13T15:08:29.116Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-13T15:08:29.116Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-shapers: don't free reply skb after genlmsg_reply()\n\ngenlmsg_reply() hands the reply skb to netlink, and\nnetlink_unicast() consumes it on all return paths, whether the\nskb is queued successfully or freed on an error path.\n\nnet_shaper_nl_get_doit() and net_shaper_nl_cap_get_doit()\ncurrently jump to free_msg after genlmsg_reply() fails and call\nnlmsg_free(msg), which can hit the same skb twice.\n\nReturn the genlmsg_reply() error directly and keep free_msg\nonly for pre-reply failures."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/shaper/shaper.c"], "versions": [{"version": "4b623f9f0f59652ea71fcb27d60b4c3b65126dbb", "lessThan": "8738dcc844fff7d0157ee775230e95df3b1884d7", "status": "affected", "versionType": "git"}, {"version": "4b623f9f0f59652ea71fcb27d60b4c3b65126dbb", "lessThan": "83f7b54242d0abbfce35a55c01322f50962ed3ee", "status": "affected", "versionType": "git"}, {"version": "4b623f9f0f59652ea71fcb27d60b4c3b65126dbb", "lessThan": "57885276cc16a2e2b76282c808a4e84cbecb3aae", "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/shaper/shaper.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.13", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8738dcc844fff7d0157ee775230e95df3b1884d7"}, {"url": "https://git.kernel.org/stable/c/83f7b54242d0abbfce35a55c01322f50962ed3ee"}, {"url": "https://git.kernel.org/stable/c/57885276cc16a2e2b76282c808a4e84cbecb3aae"}], "title": "net-shapers: don't free reply skb after genlmsg_reply()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-shapers: don't free reply skb after genlmsg_reply()\n\ngenlmsg_reply() hands the reply skb to netlink, and\nnetlink_unicast() consumes it on all return paths, whether the\nskb is queued successfully or freed on an error path.\n\nnet_shaper_nl_get_doit() and net_shaper_nl_cap_get_doit()\ncurrently jump to free_msg after genlmsg_reply() fails and call\nnlmsg_free(msg), which can hit the same skb twice.\n\nReturn the genlmsg_reply() error directly and keep free_msg\nonly for pre-reply failures."}], "id": "CVE-2026-43481", "lastModified": "2026-05-13T16:16:51.287", "metrics": {}, "published": "2026-05-13T16:16:51.287", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57885276cc16a2e2b76282c808a4e84cbecb3aae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/83f7b54242d0abbfce35a55c01322f50962ed3ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8738dcc844fff7d0157ee775230e95df3b1884d7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net-shapers: don't free reply skb after genlmsg_reply()", "id": "2477055", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477055"}, "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-1341", "details": ["A flaw was found in the Linux kernel's `net-shapers` component. An issue exists where the `skb` (socket buffer) is freed twice if `genlmsg_reply()` fails, leading to a double-free vulnerability. This can result in memory corruption or a denial of service (DoS) condition, potentially allowing a local attacker to impact system stability."], "name": "CVE-2026-43481", "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": "2026-05-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43481\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43481\nhttps://lore.kernel.org/linux-cve-announce/2026051348-CVE-2026-43481-6f80@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4b623f9f0f59652ea71fcb27d60b4c3b65126dbb,8738dcc844fff7d0157ee775230e95df3b1884d7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4b623f9f0f59652ea71fcb27d60b4c3b65126dbb,83f7b54242d0abbfce35a55c01322f50962ed3ee)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4b623f9f0f59652ea71fcb27d60b4c3b65126dbb,57885276cc16a2e2b76282c808a4e84cbecb3aae)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.19,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.9,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*)"}}], "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": "2026-05-13T17:00:14.823000+00:00", "updated": "2026-05-14T13:30:06.174515+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}