vulnerability
Oracle Linux: CVE-2025-37803: ELSA-2025-15429: kernel security update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:S/C:C/I:C/A:C) | May 8, 2025 | Jul 17, 2025 | Sep 12, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
May 8, 2025
Added
Jul 17, 2025
Modified
Sep 12, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
udmabuf: fix a buf size overflow issue during udmabuf creation
by 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.
udmabuf: fix a buf size overflow issue during udmabuf creation
by 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.
Solutions
oracle-linux-upgrade-kerneloracle-linux-upgrade-kernel-uek
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