CVE-2025-38546atm: clip: Fix memory leak of struct clip_vcc.
- 5.5MediumCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 92% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 4 months later
· 4 months later
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 2fb37ab3226606cbfc9b2b6f9e301b0b735734c5
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9e4dbeee56f614e3f1e166e5d0655a999ea185ef
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1c075e88d5859a2c6b43b27e0e46fb281cef8039
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1fb9fb5a4b5cec2d56e26525ef8c519de858fa60
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9f771816f14da6d6157a8c30069091abf6b566fb
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < cb2e4a2f8f268d8fba6662f663a2e57846f14a8d
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 62dba28275a9a3104d4e33595c7b3328d4032d8d
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.4.296 – ≤ 5.4.*
- unaffected 5.10.240 – ≤ 5.10.*
- unaffected 5.15.189 – ≤ 5.15.*
- unaffected 6.1.146 – ≤ 6.1.*
- unaffected 6.6.99 – ≤ 6.6.*
- unaffected 6.12.39 – ≤ 6.12.*
- unaffected 6.15.7 – ≤ 6.15.*
- unaffected 6.16 – ≤ *
References
References10
- https://git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5 (opens in a new tab)
- https://git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef (opens in a new tab)
- https://git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039 (opens in a new tab)
- https://git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90 (opens in a new tab)
- https://git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60 (opens in a new tab)
- https://git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb (opens in a new tab)
- https://git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d (opens in a new tab)
- https://git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-27898 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-38546)Record last updated .