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{"bugzilla": {"description": "kernel: drm/ioc32: stop speculation on the drm_compat_ioctl path", "id": "2464450", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464450"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-515", "details": ["A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem, specifically in the `drm/ioc32` component. This vulnerability, related to speculative execution (a technique used by modern processors to guess future instructions), allows a local attacker to potentially disclose sensitive information. The `drm_compat_ioctl` path incorrectly handles user-controlled pointers, leading to a Spectre-like issue where data can be exposed through speculative execution side channels."], "name": "CVE-2026-31781", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31781\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31781\nhttps://lore.kernel.org/linux-cve-announce/2026050151-CVE-2026-31781-8a5d@gregkh/T"], "threat_severity": "Moderate"}