{"id":"CVE-2026-72095","title":"kernel: dma-fence: Make dma_fence_dedup_array() robust against 0-count input (CVE-2026-72095)","summary":"A flaw was found in the Linux kernel's dma-fence component. The `dma_fence_dedup_array()` function incorrectly handles zero-count input, leading to a memory corruption vulnerability. A local attacker could potentially exploit this by trigg…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-824","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9"],"published":"2026-08-15","updated":"2026-10-26","sourceUpdated":"2026-10-26T11:08:37+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72095.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72095.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72095"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516340"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72095"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72095"},{"url":"https://kernelcve.org/list/?q=CVE-2026-72095"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081523-CVE-2026-72095-0ad7@gregkh/T"},{"url":"https://git.kernel.org/stable/c/7aa8f3dba53422465dbe1be8dbb7240304462bb2"},{"url":"https://git.kernel.org/stable/c/e2d9a2ea178a5da0b4a6693e8ebca5c7fc4d7051"},{"url":"https://git.kernel.org/stable/c/77a9298741f8f9e8b963c977f5582ab21c6d3427"}],"tags":["csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00173,"epssPercentile":0.0672,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:51:46.940002Z"},"scores":{"vendor":5.5,"cna":7.8},"ingestedAt":"2026-10-16T17:24:46.878Z","slug":"CVE-2026-72095","body":"## Overview\n\nA flaw was found in the Linux kernel's dma-fence component. The `dma_fence_dedup_array()` function incorrectly handles zero-count input, leading to a memory corruption vulnerability. A local attacker could potentially exploit this by triggering specific conditions in the `amdgpu_userq_wait_*()` functions, which may cause a system crash or lead to further compromise.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72095.json)\n\n**kernel: dma-fence: Make dma_fence_dedup_array() robust against 0-count input** — rated Moderate by Red Hat. Released 2026-08-15, updated 2026-10-26.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n\n## Remediation\n\nAffected","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":229296,"id":"CVE-2026-72095","ts":1793019668847,"field":"cvss","old":"7.8","new":"5.5"},{"seq":229295,"id":"CVE-2026-72095","ts":1793019668847,"field":"severity","old":"high","new":"medium"}]}