{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50855", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.135Z", "datePublished": "2025-12-30T12:15:30.481Z", "dateUpdated": "2025-12-30T12:15:30.481Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-30T12:15:30.481Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: prevent leak of lsm program after failed attach\n\nIn [0], we added the ability to bpf_prog_attach LSM programs to cgroups,\nbut in our validation to make sure the prog is meant to be attached to\nBPF_LSM_CGROUP, we return too early if the check fails. This results in\nlack of decrementing prog's refcnt (through bpf_prog_put)\nleaving the LSM program alive past the point of the expected lifecycle.\nThis fix allows for the decrement to take place.\n\n[0] https://lore.kernel.org/all/20220628174314.1216643-4-sdf@google.com/"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e", "lessThan": "82b39df5ddb298daaf6dc504032ff7eb027fa106", "status": "affected", "versionType": "git"}, {"version": "69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e", "lessThan": "6a1504dd36cd9a0a69250d61da8bdb17b29f1fe8", "status": "affected", "versionType": "git"}, {"version": "69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e", "lessThan": "e89f3edffb860a0f54a9ed16deadb7a4a1fa3862", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/syscall.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "6.0", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/82b39df5ddb298daaf6dc504032ff7eb027fa106"}, {"url": "https://git.kernel.org/stable/c/6a1504dd36cd9a0a69250d61da8bdb17b29f1fe8"}, {"url": "https://git.kernel.org/stable/c/e89f3edffb860a0f54a9ed16deadb7a4a1fa3862"}], "title": "bpf: prevent leak of lsm program after failed attach", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: prevent leak of lsm program after failed attach\n\nIn [0], we added the ability to bpf_prog_attach LSM programs to cgroups,\nbut in our validation to make sure the prog is meant to be attached to\nBPF_LSM_CGROUP, we return too early if the check fails. This results in\nlack of decrementing prog's refcnt (through bpf_prog_put)\nleaving the LSM program alive past the point of the expected lifecycle.\nThis fix allows for the decrement to take place.\n\n[0] https://lore.kernel.org/all/20220628174314.1216643-4-sdf@google.com/"}], "id": "CVE-2022-50855", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:16:00.223", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a1504dd36cd9a0a69250d61da8bdb17b29f1fe8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82b39df5ddb298daaf6dc504032ff7eb027fa106"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e89f3edffb860a0f54a9ed16deadb7a4a1fa3862"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: bpf: prevent leak of lsm program after failed attach", "id": "2426188", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426188"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50855", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "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": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50855\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50855\nhttps://lore.kernel.org/linux-cve-announce/2025123046-CVE-2022-50855-7845@gregkh/T"], "threat_severity": "Low"}

{}