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{"bugzilla": {"description": "kernel: udmabuf: fix a buf size overflow issue during udmabuf creation", "id": "2365013", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2365013"}, "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-120", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nudmabuf: fix a buf size overflow issue during udmabuf creation\nby casting size_limit_mb to u64 when calculate pglimit.", "A buffer-overflow vulnerability was found in the Linux kernel's udmabuf driver. The flaw occurs in the `udmabuf_create()` function, which calculates the page count limit (`pglimit`) using the variable `size_limit_mb`. This size variable can be misinterpreted as either 32-bit or 64-bit, resulting in incorrect page limit checks and allocating a larger DMA buffer than permitted. This issue can lead to memory corruption, system instability, and a denial of service."], "name": "CVE-2025-37803", "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": "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": "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": "2025-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37803\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37803\nhttps://lore.kernel.org/linux-cve-announce/2025050814-CVE-2025-37803-0c5c@gregkh/T"], "threat_severity": "Important"}

{}