CVE-2025-39830CWE-401

CVE-2025-39830

Medium · published September 16, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
3.6
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5: HWS, Fix memory leak in hws_pool_buddy_init error path

In the error path of hws_pool_buddy_init(), the buddy allocator cleanup

doesn't free the allocator structure itself, causing a memory leak.

Add the missing kfree() to properly release all allocated memory.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00146 · 3.6th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2025-09-16T18:15Z
Affected products (4)
ProductVersionsFixed in
linux/linux_kernel≥ 6.12, < 6.16.56.16.5
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (3)
https://git.kernel.org/stable/c/2c0a959bebdc1ada13cf9a8242f177c5400299e6 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4ccdbf50dd88a2a7399409e68887dd8077f6a562 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/86d13a6f49cb68aa91bd718b1b627e72e77285c1 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 16 SEP 13:08Z
    net/mlx5: HWS, Fix memory leak in hws_pool_buddy_init error path
    cvelistv5