{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49975", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.385Z", "datePublished": "2025-06-18T11:00:38.157Z", "dateUpdated": "2025-06-18T11:00:38.157Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-06-18T11:00:38.157Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Don't redirect packets with invalid pkt_len\n\nSyzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any\nskbs, that is, the flow->head is null.\nThe root cause, as the [2] says, is because that bpf_prog_test_run_skb()\nrun a bpf prog which redirects empty skbs.\nSo we should determine whether the length of the packet modified by bpf\nprog or others like bpf_prog_test is valid before forwarding it directly."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/skbuff.h", "net/bpf/test_run.c", "net/core/dev.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8b68e53d56697a59b5c53893b53f508bbdf272a0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "6204bf78b2a903b96ba43afff6abc0b04d6e0462", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a75987714bd2d8e59840667a28e15c1fa5c47554", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "72f2dc8993f10262092745a88cb2dd0fef094f23", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "fd1894224407c484f652ad456e1ce423e89bb3eb", "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/linux/skbuff.h", "net/bpf/test_run.c", "net/core/dev.c"], "versions": [{"version": "5.4.212", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.141", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.65", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.7", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.65"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.19.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8b68e53d56697a59b5c53893b53f508bbdf272a0"}, {"url": "https://git.kernel.org/stable/c/6204bf78b2a903b96ba43afff6abc0b04d6e0462"}, {"url": "https://git.kernel.org/stable/c/a75987714bd2d8e59840667a28e15c1fa5c47554"}, {"url": "https://git.kernel.org/stable/c/72f2dc8993f10262092745a88cb2dd0fef094f23"}, {"url": "https://git.kernel.org/stable/c/fd1894224407c484f652ad456e1ce423e89bb3eb"}], "title": "bpf: Don't redirect packets with invalid pkt_len", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "1A50CB2A-B4FD-4716-9BCE-0E9E3F59FF9D", "versionEndExcluding": "5.4.212", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6872143E-BF6D-4DB5-8454-D843F608AB3B", "versionEndExcluding": "5.10.141", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "81162A58-341F-455C-96D5-6DF30A0F9295", "versionEndExcluding": "5.15.65", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DEBCC9D9-2058-44E1-8A2E-ABC880E4DE50", "versionEndExcluding": "5.19.7", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Don't redirect packets with invalid pkt_len\n\nSyzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any\nskbs, that is, the flow->head is null.\nThe root cause, as the [2] says, is because that bpf_prog_test_run_skb()\nrun a bpf prog which redirects empty skbs.\nSo we should determine whether the length of the packet modified by bpf\nprog or others like bpf_prog_test is valid before forwarding it directly."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: No redirigir paquetes con pkt_len no v\u00e1lidos. Syzbot encontr\u00f3 un problema [1]: fq_codel_drop() intenta descartar un flujo sin skbs, es decir, el flujo->head es nulo. La causa principal, como se indica en [2], es que bpf_prog_test_run_skb() ejecuta un programa bpf que redirige skbs vac\u00edos. Por lo tanto, debemos determinar si la longitud del paquete modificado por el programa bpf u otros como bpf_prog_test es v\u00e1lida antes de reenviarlo directamente."}], "id": "CVE-2022-49975", "lastModified": "2025-11-13T21:28:22.667", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-06-18T11:15:24.893", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6204bf78b2a903b96ba43afff6abc0b04d6e0462"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/72f2dc8993f10262092745a88cb2dd0fef094f23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b68e53d56697a59b5c53893b53f508bbdf272a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a75987714bd2d8e59840667a28e15c1fa5c47554"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fd1894224407c484f652ad456e1ce423e89bb3eb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: bpf: Don't redirect packets with invalid pkt_len", "id": "2373507", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373507"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Don't redirect packets with invalid pkt_len\nSyzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any\nskbs, that is, the flow->head is null.\nThe root cause, as the [2] says, is because that bpf_prog_test_run_skb()\nrun a bpf prog which redirects empty skbs.\nSo we should determine whether the length of the packet modified by bpf\nprog or others like bpf_prog_test is valid before forwarding it directly."], "name": "CVE-2022-49975", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49975\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49975\nhttps://lore.kernel.org/linux-cve-announce/2025061819-CVE-2022-49975-89e6@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-06-20T13:55:53.801631+00:00", "updated": "2025-06-20T13:55:53.801668+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}