CVE-2025-37962Missing Release of Memory after Effective Lifetime in Linux

Severity
5.5MEDIUMNVD
OSV7.8OSV3.2
EPSS
0.1%
top 74.69%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedMay 20
Latest updateMar 25

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parse_lease_state() The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure. This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.

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 Packages6 packages

NVDlinux/linux_kernel6.1.1346.1.139+5
Debianlinux/linux_kernel< 6.1.140-1+2
Ubuntulinux/linux_kernel< 6.8.0-100.100
CVEListV5linux/linux629dd37acc336ad778979361c351e782053ea284facf22c1a394c1e023dab5daf9a494f722771e1c+9
debiandebian/linux< linux 6.1.140-1 (bookworm)

Also affects: Debian Linux 11.0

Patches

🔴Vulnerability Details

21
OSV
linux-azure-6.8 vulnerabilities2026-03-25
OSV
linux-azure-fips vulnerabilities2026-03-04
OSV
linux-azure vulnerabilities2026-03-04
OSV
linux-ibm, linux-ibm-6.8 vulnerabilities2026-02-24
OSV
linux-xilinx vulnerabilities2026-02-24

📋Vendor Advisories

19
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-03-04
Ubuntu
Linux kernel (Xilinx) vulnerabilities2026-02-24
Ubuntu
Linux kernel (IBM) vulnerabilities2026-02-24
CVE-2025-37962 — Linux vulnerability | cvebase