CVE-2026-64156

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{"bugzilla": {"description": "kernel: netfs, afs: Fix write skipping in dir/link writepages", "id": "2502616", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502616"}, "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-367", "details": ["A flaw was found in the Linux kernel's network file system (netfs) and AFS (Andrew File System) components. When a write operation is skipped due to lock contention and a specific writeback control flag (WB_SYNC_NONE), the system may fail to correctly re-mark the inode, which is a data structure that stores information about a file or directory. While currently considered theoretical for directories, this could potentially lead to data inconsistency or other unexpected behavior within the file system."], "name": "CVE-2026-64156", "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"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64156\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64156\nhttps://lore.kernel.org/linux-cve-announce/2026071932-CVE-2026-64156-5bcd@gregkh/T"], "threat_severity": "Moderate"}

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