CVE-2025-37962ksmbd: fix memory leak in parse_lease_state()
- 5.5MediumCVSS base score
- 0.19%Exploitation in 30 daysEPSS · top 91% 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: 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.
Timeline
ID reserved
By Linux
- 34 days later
· 34 days later
Published
- 12 months later
· 12 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)
- 0.19% · top 91% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 629dd37acc336ad778979361c351e782053ea284 – < facf22c1a394c1e023dab5daf9a494f722771e1c
- affected 60b7207893a8a06c78441934931a08fdad63f18e – < af9e2d4732a548db8f6f5a90c2c20a789a3d7240
- affected 800c482c9ef5910f05e3a713943c67cc6c1d4939 – < 2148d34371b06dac696c0497a98a6bf905a51650
- affected 9a1b6ea955e6c7b29939a6d98701202f9d9644ec – < 829e19ef741d9e9932abdc3bee5466195e0852cf
- affected bab703ed8472aa9d109c5f8c1863921533363dae – < eb4447bcce915b43b691123118893fca4f372a8f
- affected a41cd52f00907a040ca22c73d4805bb79b0d0972
- affected 6.13.11 – < 6.14
- 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
References
References6
- https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c (opens in a new tab)
- https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240 (opens in a new tab)
- https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650 (opens in a new tab)
- https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf (opens in a new tab)
- https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.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-2025-15889 (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-2025-37962)Record last updated .