CVE-2025-21981Missing Release of Memory after Effective Lifetime in Linux

Severity
5.5MEDIUMNVD
OSV8.8OSV5.9OSV4.7OSV4.4
EPSS
0.1%
top 73.76%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 1
Latest updateOct 15

Description

In the Linux kernel, the following vulnerability has been resolved: ice: fix memory leak in aRFS after reset Fix aRFS (accelerated Receive Flow Steering) structures memory leak by adding a checker to verify if aRFS memory is already allocated while configuring VSI. aRFS objects are allocated in two cases: - as part of VSI initialization (at probe), and - as part of reset handling However, VSI reconfiguration executed during reset involves memory allocation one more time, without prior releasi

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages10 packages

Patches

🔴Vulnerability Details

33
OSV
linux-oracle-6.8 vulnerabilities2025-10-15
OSV
linux-azure-nvidia vulnerabilities2025-10-08
OSV
linux-oracle vulnerabilities2025-10-06
OSV
linux-azure, linux-azure-6.8 vulnerabilities2025-10-02
OSV
linux-raspi-realtime vulnerabilities2025-10-02

📋Vendor Advisories

34
Ubuntu
Linux kernel (Oracle) vulnerabilities2025-10-15
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities2025-10-08
Ubuntu
Linux kernel (Oracle) vulnerabilities2025-10-06
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities2025-10-02
Ubuntu
Linux kernel (HWE) vulnerabilities2025-10-02