5.5

CVE-2025-21944

ksmbd: fix bug on trap in smb2_lock

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

ksmbd: fix bug on trap in smb2_lock

If lock count is greater than 1, flags could be old value.
It should be checked with flags of smb_lock, not flags.
It will cause bug-on trap from locks_free_lock in error handling
routine.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.15 < 6.1.131
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.83
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.19
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.7
Linux ≫ Linux Kernel Version6.14 Updaterc1
Linux ≫ Linux Kernel Version6.14 Updaterc2
Linux ≫ Linux Kernel Version6.14 Updaterc3
Linux ≫ Linux Kernel Version6.14 Updaterc4
Linux ≫ Linux Kernel Version6.14 Updaterc5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.04
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-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://git.kernel.org/stable/c/11e0e74e14f1832a95092f2c98ed3b99f57797ee
Patch
https://git.kernel.org/stable/c/2b70e3ac79eacbdf32571f7af48dd81cdd957ca8
Patch
https://git.kernel.org/stable/c/8994f0ce8259f812b4f4a681d8298c6ff682efaa
Patch
https://git.kernel.org/stable/c/dbcd7fdd86f77529210fe8978154a81cd479844c
Patch
https://git.kernel.org/stable/c/e26e2d2e15daf1ab33e0135caf2304a0cfa2744b
Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html