PT-2025-18442 · Linux+5 · Linux Kernel+5
Published
2025-03-26
·
Updated
2026-04-20
·
CVE-2025-37761
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.14.0+
Description
The issue is related to an out-of-bounds shift when invalidating TLB in the Linux kernel. This occurs when the size of the range invalidated is larger than rounddown pow of two(ULONG MAX), causing the function macro roundup pow of two(length) to hit an out-of-bounds shift. To resolve this, a full TLB invalidation is used for such cases. The vulnerability was identified through a UBSAN shift-out-of-bounds error.
Recommendations
For Linux kernel versions prior to 6.14.0+, update to version 6.14.0 or later to resolve the issue. As a temporary workaround, consider disabling the
xe gt tlb invalidation range function until a patch is available. Restrict access to the vulnerable drm gpusvm module to minimize the risk of exploitation. Avoid using the roundup pow of two function with large range sizes until the issue is resolved.Exploit
Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu