CVE-2026-64353

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{}

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{"bugzilla": {"description": "kernel: bpf: Keep dynamic inner array lookups nullable", "id": "2507228", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507228"}, "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-787", "details": ["A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) verifier. This vulnerability occurs because the BPF verifier incorrectly handles dynamic inner array lookups in ARRAY_OF_MAPS. When an inner map template is replaced by a concrete inner array with a different maximum entry size, the verifier may perform incorrect bounds checking. A local attacker could exploit this flaw by creating a specially crafted BPF program, potentially leading to out-of-bounds memory access. This could result in a denial of service or, in some cases, privilege escalation."], "name": "CVE-2026-64353", "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": "Not affected", "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:hummingbird:1", "fix_state": "Not affected", "impact": "moderate", "package_name": "erlang27", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64353\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64353\nhttps://lore.kernel.org/linux-cve-announce/2026072519-CVE-2026-64353-6baf@gregkh/T"], "threat_severity": "Moderate"}

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