CVE-2025-38546: debian debian_linux
Vulnerability summary
CVE-2025-38546 is a medium (CVSS 5.5) vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 47 · Related 45Timeline
- 16-08-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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 metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.01 pp
From 0.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu147 products
- linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2fb37ab3226606cbfc9b2b6f9e301b0b735734c5 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9e4dbeee56f614e3f1e166e5d0655a999ea185ef | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1c075e88d5859a2c6b43b27e0e46fb281cef8039 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1fb9fb5a4b5cec2d56e26525ef8c519de858fa60 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9f771816f14da6d6157a8c30069091abf6b566fb | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cb2e4a2f8f268d8fba6662f663a2e57846f14a8d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 62dba28275a9a3104d4e33595c7b3328d4032d8d | 2.6.12
- linux_kernel≥ 2.6.13, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.99 | ≥ 6.7, < 6.12.39 | ≥ 6.13, < 6.15.7 | 2.6.12 | 2.6.12:rc2 | 2.6.12:rc3 | 2.6.12:rc4 | 2.6.12:rc5 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5
3 vendors · 151 products