CVE-2025-38546

MEDIUM EPSS 4.5%
Published Aug 16, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 16, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix memory leak of struct clip_vcc. ioctl(ATMARP_MKIP) allocates struct clip_vcc and set it to vcc->user_back. The code assumes that vcc_destroy_socket() passes NULL skb to vcc->push() when the socket is close()d, and then clip_push() frees clip_vcc. However, ioctl(ATMARPD_CTRL) sets NULL to vcc->push() in atm_init_atmarp(), resulting in memory leak. Let's serialise two ioctl() by lock_sock() and check vcc->push() in atm_init_atmarp() to prevent memleak.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 18

VendorProductVersionRange
linuxlinux_kernel*≥2.6.13  –  <5.4.296
linuxlinux_kernel*≥5.5  –  <5.10.240
linuxlinux_kernel*≥5.11  –  <5.15.189
linuxlinux_kernel*≥5.16  –  <6.1.146
linuxlinux_kernel*≥6.2  –  <6.6.99
linuxlinux_kernel*≥6.7  –  <6.12.39
linuxlinux_kernel*≥6.13  –  <6.15.7
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 10

  • git.kernel.org https://git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Mailing ListThird Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d
    Patch