CVE-2025-38546
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedAug 16, 2025
First seenAug 16, 2025
Weakness typeCWE-401CWE-401
How to fix
Update
- linux linux_kernel5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7 or later
Patches
- git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90
- git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039
- git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60
- git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5
- git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d
- git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef
- git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb
- git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.13 ≤ v < 5.4.296, 5.5 ≤ v < 5.10.240, 5.11 ≤ v < 5.15.189, 5.16 ≤ v < 6.1.146, 6.2 ≤ v < 6.6.99, 6.7 ≤ v < 6.12.39, 6.13 ≤ v < 6.15.7, 2.6.12, 6.16 | 5.4.296, 5.10.240, 5.15.189, 6.1.146, 6.6.99, 6.12.39, 6.15.7 |
| debian debian_linux | 11.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.