CVE-2026-90300

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90300", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.799Z", "datePublished": "2026-09-17T16:08:24.515Z", "dateUpdated": "2026-10-30T12:35:04.681Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:35:04.681Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM\nargument and we should initialize the buf on every return path.\n\nAdding missing buf memset for __bpf_get_task_stack fail paths. This\nprovides deterministic buffer contents, which is useful when the buffer\nis used directly as a map key."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/stackmap.c"], "versions": [{"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "5c4c57a277a87ed235183d03b671d346f5101f62", "status": "affected", "versionType": "git"}, {"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "4acc761b4e3feca1eb648d21fc4d665b23c5372d", "status": "affected", "versionType": "git"}, {"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "6f5a7bcc049709af12e403111d5e73e80910dafc", "status": "affected", "versionType": "git"}, {"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "1f0f61573ba4cb899105b5cef65be3ca02205f93", "status": "affected", "versionType": "git"}, {"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "f523359c4789bb0396d2d642464a6e2fd4f2299d", "status": "affected", "versionType": "git"}, {"version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "lessThan": "f5d242825ca417bb6afe35fde6e8880f97ca43fb", "status": "affected", "versionType": "git"}, {"version": "d921baabd96445ef9c9c9410ca06164359c8a1a5", "status": "affected", "versionType": "git"}, {"version": "9c020a533eaae1c2d41a7e3835c4c818a9b4b656", "status": "affected", "versionType": "git"}, {"version": "ff6bdc205fd0a83bd365405d4e31fb5905826996", "status": "affected", "versionType": "git"}, {"version": "5.10.30", "lessThan": "5.11", "status": "affected", "versionType": "semver"}, {"version": "5.11.14", "lessThan": "5.12", "status": "affected", "versionType": "semver"}, {"version": "5.10.96", "lessThan": "5.11", "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/stackmap.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "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": "6.18.57", "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": "5.12", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.96"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5c4c57a277a87ed235183d03b671d346f5101f62"}, {"url": "https://git.kernel.org/stable/c/4acc761b4e3feca1eb648d21fc4d665b23c5372d"}, {"url": "https://git.kernel.org/stable/c/6f5a7bcc049709af12e403111d5e73e80910dafc"}, {"url": "https://git.kernel.org/stable/c/1f0f61573ba4cb899105b5cef65be3ca02205f93"}, {"url": "https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d"}, {"url": "https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb"}], "title": "bpf: Clear buf on error in __bpf_get_task_stack", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/stackmap.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5c4c57a277a87ed235183d03b671d346f5101f62", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"lessThan": "4acc761b4e3feca1eb648d21fc4d665b23c5372d", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"lessThan": "6f5a7bcc049709af12e403111d5e73e80910dafc", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"lessThan": "1f0f61573ba4cb899105b5cef65be3ca02205f93", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"lessThan": "f523359c4789bb0396d2d642464a6e2fd4f2299d", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"lessThan": "f5d242825ca417bb6afe35fde6e8880f97ca43fb", "status": "affected", "version": "06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df", "versionType": "git"}, {"status": "affected", "version": "d921baabd96445ef9c9c9410ca06164359c8a1a5", "versionType": "git"}, {"status": "affected", "version": "9c020a533eaae1c2d41a7e3835c4c818a9b4b656", "versionType": "git"}, {"status": "affected", "version": "ff6bdc205fd0a83bd365405d4e31fb5905826996", "versionType": "git"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.30", "versionType": "semver"}, {"lessThan": "5.12", "status": "affected", "version": "5.11.14", "versionType": "semver"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.96", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/stackmap.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.12"}, {"lessThan": "5.12", "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": "6.18.57", "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: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM\nargument and we should initialize the buf on every return path.\n\nAdding missing buf memset for __bpf_get_task_stack fail paths. This\nprovides deterministic buffer contents, which is useful when the buffer\nis used directly as a map key."}], "id": "CVE-2026-90300", "lastModified": "2026-10-30T13:20:48.903", "metrics": {}, "published": "2026-09-17T17:17:27.503", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f0f61573ba4cb899105b5cef65be3ca02205f93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4acc761b4e3feca1eb648d21fc4d665b23c5372d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c4c57a277a87ed235183d03b671d346f5101f62"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6f5a7bcc049709af12e403111d5e73e80910dafc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df,f523359c4789bb0396d2d642464a6e2fd4f2299d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df,f5d242825ca417bb6afe35fde6e8880f97ca43fb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d921baabd96445ef9c9c9410ca06164359c8a1a5,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9c020a533eaae1c2d41a7e3835c4c818a9b4b656,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ff6bdc205fd0a83bd365405d4e31fb5905826996,*]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.10.30,5.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.11.14,5.12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.10.96,5.11)"}}], "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": "[5.12,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "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": "2026-09-19T03:45:16.896164+00:00", "updated": "2026-09-19T15:45:16.351427+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-758"]}