{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-92520", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-16T12:21:13.874Z", "datePublished": "2026-09-17T16:10:27.447Z", "dateUpdated": "2026-10-30T12:35:45.323Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:35:45.323Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Zero queue and stack outputs on lock failure\n\nQueue and stack pop/peek helpers accept an uninitialized output buffer\nbecause the verifier expects the helper to initialize it. The empty-map\nerror path clears the buffer, but a failed lock acquisition returns\n-EBUSY without writing it.\n\nClear the output before returning -EBUSY so BPF programs cannot observe\nuninitialized stack contents after a failed helper call."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/queue_stack_maps.c"], "versions": [{"version": "e388671635acf470f0986d874389148fd234620b", "lessThan": "6468e8ac026b44ae2a78114b80f9d1b9164d0f6c", "status": "affected", "versionType": "git"}, {"version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "lessThan": "a6090eeb289c5fa45f7b629befac2bd3c19a6dae", "status": "affected", "versionType": "git"}, {"version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "lessThan": "23b4bcc79bab5285275912b94e98c286f281de75", "status": "affected", "versionType": "git"}, {"version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "lessThan": "1534c4bff3aaca19c4c9a82f93e9b81f7c983de3", "status": "affected", "versionType": "git"}, {"version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "lessThan": "e2396b8a562073787e627a5f483f1bc5c452fa6a", "status": "affected", "versionType": "git"}, {"version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "lessThan": "7ac6e1ae41a09f1dd4baeeff1d028ae49ee01232", "status": "affected", "versionType": "git"}, {"version": "40e34ea01748e5b8afdd40a172868be1e1ab0ede", "status": "affected", "versionType": "git"}, {"version": "388c9d3eefaea99828ee5000c693128a5b41ee7c", "status": "affected", "versionType": "git"}, {"version": "acabf5df49aa3a4f9c96200102d893351b511a88", "status": "affected", "versionType": "git"}, {"version": "232f0ba4d69263af5912e279fcc32fef2882b1dc", "status": "affected", "versionType": "git"}, {"version": "6.1.56", "lessThan": "6.1.191", "status": "affected", "versionType": "semver"}, {"version": "5.4.258", "lessThan": "5.5", "status": "affected", "versionType": "semver"}, {"version": "5.10.198", "lessThan": "5.11", "status": "affected", "versionType": "semver"}, {"version": "5.15.134", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.5.6", "lessThan": "6.6", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/queue_stack_maps.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.1.56", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": 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"https://git.kernel.org/stable/c/23b4bcc79bab5285275912b94e98c286f281de75"}, {"url": "https://git.kernel.org/stable/c/1534c4bff3aaca19c4c9a82f93e9b81f7c983de3"}, {"url": "https://git.kernel.org/stable/c/e2396b8a562073787e627a5f483f1bc5c452fa6a"}, {"url": "https://git.kernel.org/stable/c/7ac6e1ae41a09f1dd4baeeff1d028ae49ee01232"}], "title": "bpf: Zero queue and stack outputs on lock failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/queue_stack_maps.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6468e8ac026b44ae2a78114b80f9d1b9164d0f6c", "status": "affected", "version": "e388671635acf470f0986d874389148fd234620b", "versionType": "git"}, {"lessThan": "a6090eeb289c5fa45f7b629befac2bd3c19a6dae", "status": "affected", "version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "versionType": "git"}, {"lessThan": "23b4bcc79bab5285275912b94e98c286f281de75", "status": "affected", "version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "versionType": "git"}, {"lessThan": "1534c4bff3aaca19c4c9a82f93e9b81f7c983de3", "status": "affected", "version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "versionType": "git"}, {"lessThan": "e2396b8a562073787e627a5f483f1bc5c452fa6a", "status": "affected", "version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "versionType": "git"}, {"lessThan": "7ac6e1ae41a09f1dd4baeeff1d028ae49ee01232", "status": "affected", "version": "a34a9f1a19afe9c60ca0ea61dfeee63a1c2baac8", "versionType": "git"}, {"status": "affected", "version": "40e34ea01748e5b8afdd40a172868be1e1ab0ede", "versionType": "git"}, {"status": "affected", "version": "388c9d3eefaea99828ee5000c693128a5b41ee7c", "versionType": "git"}, {"status": "affected", "version": "acabf5df49aa3a4f9c96200102d893351b511a88", "versionType": "git"}, {"status": "affected", "version": "232f0ba4d69263af5912e279fcc32fef2882b1dc", "versionType": "git"}, {"lessThan": "6.1.191", "status": "affected", "version": "6.1.56", "versionType": "semver"}, {"lessThan": "5.5", "status": "affected", "version": "5.4.258", "versionType": "semver"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.198", "versionType": "semver"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.134", "versionType": "semver"}, {"lessThan": "6.6", "status": "affected", "version": "6.5.6", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/queue_stack_maps.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Zero queue and stack outputs on lock failure\n\nQueue and stack pop/peek helpers accept an uninitialized output buffer\nbecause the verifier expects the helper to initialize it. The empty-map\nerror path clears the buffer, but a failed lock acquisition returns\n-EBUSY without writing it.\n\nClear the output before returning -EBUSY so BPF programs cannot observe\nuninitialized stack contents after a failed helper call."}], "id": "CVE-2026-92520", "lastModified": "2026-10-30T13:20:55.797", "metrics": {}, "published": "2026-09-17T17:17:54.900", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1534c4bff3aaca19c4c9a82f93e9b81f7c983de3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23b4bcc79bab5285275912b94e98c286f281de75"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6468e8ac026b44ae2a78114b80f9d1b9164d0f6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7ac6e1ae41a09f1dd4baeeff1d028ae49ee01232"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6090eeb289c5fa45f7b629befac2bd3c19a6dae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2396b8a562073787e627a5f483f1bc5c452fa6a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

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