In the Linux kernel, the following vulnerability has been resolved:
iommufd: Prevent ALIGN() overflow
When allocating IOVA the candidate range gets aligned to the target
alignment. If the range is close to ULONG_MAX then the ALIGN() can
wrap resulting in a corrupted iova.
Open code the ALIGN() using get_add_overflow() to prevent this.
This simplifies the checks as we don't need to check for length earlier
either.
Consolidate the two copies of this code under a single helper.
This bug would allow userspace to create a mapping that overlaps with some
other mapping or a reserved range.
References
Configurations
Configuration 1 (hide)
|
History
24 Nov 2025, 19:47
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux
Linux linux Kernel |
|
| CWE | NVD-CWE-noinfo | |
| References | () https://git.kernel.org/stable/c/79fad1917802c28de51a479318a056a6fbe3e2f2 - Patch | |
| References | () https://git.kernel.org/stable/c/b42497e3c0e74db061eafad41c0cd7243c46436b - Patch | |
| References | () https://git.kernel.org/stable/c/d19b817540c0abe84854a64ee9ee34cecc3bbeef - Patch | |
| References | () https://git.kernel.org/stable/c/e42a046bb41dcdde4f766a17d8211842007ed537 - Patch | |
| References | () https://git.kernel.org/stable/c/ebb6021560b94649bec6b8faba6fe0dca2218e81 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
04 Sep 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-04 16:15
Updated : 2025-11-24 19:47
NVD link : CVE-2025-38688
Mitre link : CVE-2025-38688
CVE.ORG link : CVE-2025-38688
JSON object : View
Products Affected
linux
- linux_kernel
CWE