CVE-2025-38562
MEDIUMLinux Kernel - Null Pointer Dereference in ksmbd generate_encryptionkey
Title source: llmDescription
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.
References (9)
Core 9
Core References
Third Party Advisory, Mailing List
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Third Party Advisory, Mailing List
https://www.zerodayinitiative.com/advisories/ZDI-25-917/
Scores
CVSS v3
5.5
EPSS
0.0002
EPSS Percentile
7.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (23)
debian/debian_linux
11.0
linux/Kernel
5.15.0 - 6.1.148linux
linux/Kernel
6.13.0 - 6.15.10linux
linux/Kernel
6.16.0 - 6.16.1linux
linux/Kernel
6.2.0 - 6.6.102linux
linux/Kernel
6.7.0 - 6.12.42linux
Linux/Linux
< 5.15
Linux/Linux
0626e6641f6b467447c81dd7678a69c66f7746cf - 015ef163d65496ae3ba6192c96140a22743f0353
Linux/Linux
0626e6641f6b467447c81dd7678a69c66f7746cf - 2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e
Linux/Linux
0626e6641f6b467447c81dd7678a69c66f7746cf - 922f85e6e88fdea723a26854c3a6dcb4beb8d0b9
... and 13 more
Published
Aug 19, 2025
Tracked Since
Feb 18, 2026