5.5

CVE-2025-37962

ksmbd: fix memory leak in parse_lease_state()

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.134 < 6.1.139
Linux ≫ Linux Kernel Version >= 6.6.87 < 6.6.91
Linux ≫ Linux Kernel Version >= 6.12.23 < 6.12.29
Linux ≫ Linux Kernel Version >= 6.13.11 < 6.14
Linux ≫ Linux Kernel Version >= 6.14.2 < 6.14.7
Linux ≫ Linux Kernel Version6.15 Updaterc1
Linux ≫ Linux Kernel Version6.15 Updaterc2
Linux ≫ Linux Kernel Version6.15 Updaterc3
Linux ≫ Linux Kernel Version6.15 Updaterc4
Linux ≫ Linux Kernel Version6.15 Updaterc5
Debian ≫ Debian Linux Version11.0
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.044
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650
Patch
https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf
Patch
https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240
Patch
https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f
Patch
https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c
Patch
https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
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