CVE-2025-37962
ksmbd: fix memory leak in parse_lease_state()
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.19 % · percentile 9 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parse_lease_state() The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure. This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.
Weaknesses (CWE)
- CWE-401 — Missing Release of Memory after Effective Lifetime
References
- https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c
- https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240
- https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650
- https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf
- https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-15889
- GCVE · GCVE-0-2025-37962
CERT-FR advisories
- CERTFR-2026-AVI-0246 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0227 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0218 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0194 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0169 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0721 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0697 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0464 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.134 < 6.1.139cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.87 < 6.6.91cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.12.23 < 6.12.29cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13.11 < 6.14cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.14.2 < 6.14.7cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 629dd37acc336ad778979361c351e782053ea284 < facf22c1a394c1e023dab5daf9a494f722771e1c ; affected 60b7207893a8a06c78441934931a08fdad63f18e < af9e2d4732a548db8f6f5a90c2c20a789a3d7240 ; affected 800c482c9ef5910f05e3a713943c67cc6c1d4939 < 2148d34371b06dac696c0497a98a6bf905a51650 ; affected 9a1b6ea955e6c7b29939a6d98701202f9d9644ec < 829e19ef741d9e9932abdc3bee5466195e0852cf ; affected bab703ed8472aa9d109c5f8c1863921533363dae < eb4447bcce915b43b691123118893fca4f372a8f ; affected a41cd52f00907a040ca22c73d4805bb79b0d0972 |
| Linux · Linux | affected 6.1.134 < 6.1.139 ; affected 6.6.87 < 6.6.91 ; affected 6.12.23 < 6.12.29 ; affected 6.14.2 < 6.14.7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |