PT-2025-49027 · Linux+1 · Linux Kernel+1

CVE-2025-40216

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Published

2025-12-04

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Updated

2026-08-12

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains an issue within the io uring/rsrc subsystem. The problem arises because the system does not guarantee alignment for user pointers. Specifically, the calculation of an offset for the first page within a folio after coalescing utilizes flawed bit mask logic. This logic has been removed to address the issue.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

BDU:2026-09801
CVE-2025-40216
OPENSUSE-SU-2026:21555-1
SUSE-SU-2026:23066-1
SUSE-SU-2026:23068-1
SUSE-SU-2026:23221-1
SUSE-SU-2026:23231-1
SUSE-SU-2026:23237-1
SUSE-SU-2026:2799-1
SUSE-SU-2026:2800-1

Affected Products

Linux Kernel
Red Os