CVE-2026-98007

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98007", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:19:56.068Z", "datePublished": "2026-09-25T10:23:32.939Z", "dateUpdated": "2026-10-19T09:12:12.779Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:12:12.779Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/bpf.h", "kernel/bpf/bpf_iter.c", "kernel/bpf/verifier.c"], "versions": [{"version": "bfc5c19b4b48840627af0d0f1c8f4461b276e508", "lessThan": "2ff38b3552af53238aee6c877ae64cc798d46fce", "status": "affected", "versionType": "git"}, {"version": "bb124da69c47dd98d69361ec13244ece50bec63e", "lessThan": "656d40d1ca228ee21a9b3280432479fc9eae75ab", "status": "affected", "versionType": "git"}, {"version": "bb124da69c47dd98d69361ec13244ece50bec63e", "lessThan": "e2e1161e03fecff6d2229a81b024337144bfcd97", "status": "affected", "versionType": "git"}, {"version": "bb124da69c47dd98d69361ec13244ece50bec63e", "lessThan": "f8ae8275c721334ee50fafdd986fb83294eb941a", "status": "affected", "versionType": "git"}, {"version": "bb124da69c47dd98d69361ec13244ece50bec63e", "lessThan": "c3fd8e5fd100f122bad503bdc0e9277219533253", "status": "affected", "versionType": "git"}, {"version": "6.6.15", "lessThan": "6.6.158", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/linux/bpf.h", "kernel/bpf/bpf_iter.c", "kernel/bpf/verifier.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "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": "6.6.15", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2ff38b3552af53238aee6c877ae64cc798d46fce"}, {"url": "https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab"}, {"url": "https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97"}, {"url": "https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a"}, {"url": "https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253"}], "title": "bpf: Reject non-scalar bpf_loop iteration counts", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/linux/bpf.h", "kernel/bpf/bpf_iter.c", "kernel/bpf/verifier.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2ff38b3552af53238aee6c877ae64cc798d46fce", "status": "affected", "version": "bfc5c19b4b48840627af0d0f1c8f4461b276e508", "versionType": "git"}, {"lessThan": "656d40d1ca228ee21a9b3280432479fc9eae75ab", "status": "affected", "version": "bb124da69c47dd98d69361ec13244ece50bec63e", "versionType": "git"}, {"lessThan": "e2e1161e03fecff6d2229a81b024337144bfcd97", "status": "affected", "version": "bb124da69c47dd98d69361ec13244ece50bec63e", "versionType": "git"}, {"lessThan": "f8ae8275c721334ee50fafdd986fb83294eb941a", "status": "affected", "version": "bb124da69c47dd98d69361ec13244ece50bec63e", "versionType": "git"}, {"lessThan": "c3fd8e5fd100f122bad503bdc0e9277219533253", "status": "affected", "version": "bb124da69c47dd98d69361ec13244ece50bec63e", "versionType": "git"}, {"lessThan": "6.6.158", "status": "affected", "version": "6.6.15", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/linux/bpf.h", "kernel/bpf/bpf_iter.c", "kernel/bpf/verifier.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "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: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing."}], "id": "CVE-2026-98007", "lastModified": "2026-10-19T10:17:52.070", "metrics": {}, "published": "2026-09-25T11:17:28.967", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2ff38b3552af53238aee6c877ae64cc798d46fce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: bpf: Reject non-scalar bpf_loop iteration counts", "id": "2541287", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541287"}, "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"}, "cwe": "CWE-617", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Reject non-scalar bpf_loop iteration counts\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing.", "A flaw was found in the Linux kernel. A privileged local user can cause a Denial of Service (DoS) by loading a specially crafted BPF (Berkeley Packet Filter) program that passes a pointer value instead of a scalar number as the loop iteration count to the bpf_loop function. Because the kernel's BPF verifier does not strictly enforce scalar arguments for this parameter, an internal tracking failure triggers a kernel warning. On systems configured to panic on warnings, this condition leads to an immediate kernel crash."], "name": "CVE-2026-98007", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98007\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98007\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98007.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bb124da69c47dd98d69361ec13244ece50bec63e,656d40d1ca228ee21a9b3280432479fc9eae75ab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bb124da69c47dd98d69361ec13244ece50bec63e,e2e1161e03fecff6d2229a81b024337144bfcd97)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bb124da69c47dd98d69361ec13244ece50bec63e,f8ae8275c721334ee50fafdd986fb83294eb941a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bb124da69c47dd98d69361ec13244ece50bec63e,c3fd8e5fd100f122bad503bdc0e9277219533253)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "bfc5c19b4b48840627af0d0f1c8f4461b276e508"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.15,6.7)"}}], "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": "6.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.111,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc2,*]"}}], "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": "2026-09-25T16:45:08.755203+00:00", "updated": "2026-09-30T14:30:18.596866+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}