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.

Classification

CVE ID: CVE-2025-37962

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.93% (scored less or equal to compared to others)

EPSS Date: 2025-06-18 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37962
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

Timeline