7

CVE-2025-37776

ksmbd: fix use-after-free in smb_break_all_levII_oplock()

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix use-after-free in smb_break_all_levII_oplock()

There is a room in smb_break_all_levII_oplock that can cause racy issues
when unlocking in the middle of the loop. This patch use read lock
to protect whole loop.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15 < 6.6.88
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.25
Linux ≫ Linux Kernel Version >= 6.13 < 6.14.4
Linux ≫ Linux Kernel Version6.15 Updaterc1
Linux ≫ Linux Kernel Version6.15 Updaterc2
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.045
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/296cb5457cc6f4a754c4ae29855f8a253d52bcc6
Patch
https://git.kernel.org/stable/c/d54ab1520d43e95f9b2e22d7a05fc9614192e5a5
Patch
https://git.kernel.org/stable/c/d73686367ad68534257cd88a36ca3c52cb8b81d8
Patch
https://git.kernel.org/stable/c/18b4fac5ef17f77fed9417d22210ceafd6525fc7
Patch