{"id":"CVE-2026-46311","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix access to stale wptr mapping\n\nUse drm_exec to take both locks i.e vm root bo and\nwptr_obj bo to access the mapping data properly.\n\nThis fixes the …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix access to stale wptr mapping\n\nUse drm_exec to take both locks i.e vm root bo and\nwptr_obj bo to access the mapping data properly.\n\nThis fixes the …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","published":"2026-06-08","updated":"2026-07-07","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-46311","references":[{"url":"https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8ea","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46311.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-46311"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2486470"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46311"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46311"},{"url":"https://lore.kernel.org/linux-cve-announce/2026060853-CVE-2026-46311-bf08@gregkh/T"},{"url":"https://access.redhat.com/errata/RHSA-2026:71602"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.00165,"epssPercentile":0.05056,"ingestedAt":"2026-07-08T12:51:00.719Z","vendor":"Red Hat","product":"Red Hat Enterprise Linux BaseOS (v. 10)","affected":["enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9","enterprise_linux_appstream_v_10","enterprise_linux_baseos_v_10","enterprise_linux_codeready_linux_builder_v_10","enterprise_linux_real_time_for_nfv_v_10","enterprise_linux_real_time_v_10"],"patched":["enterprise_linux_appstream_v_10","enterprise_linux_baseos_v_10","enterprise_linux_codeready_linux_builder_v_10","enterprise_linux_real_time_for_nfv_v_10","enterprise_linux_real_time_v_10"],"cwe":["CWE-825"],"scores":{"nvd":7.8,"vendor":7},"slug":"CVE-2026-46311","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix access to stale wptr mapping\n\nUse drm_exec to take both locks i.e vm root bo and\nwptr_obj bo to access the mapping data properly.\n\nThis fixes the security issue of unmap the wptr_obj while\na queue creation is in progress and passing other\nbo at same address.\n\n(cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:71602** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10), Red Hat Enterprise Linux Real Time (v. 10) · released 2026-09-24 · [advisory](https://access.redhat.com/errata/RHSA-2026:71602)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46311.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}