CVE-2025-38562
ksmbd: fix null pointer dereference error in generate_encryptionkey
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 19, 2025 |
| Last Updated | Apr 18, 2026 |
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Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
0626e6641f6b467447c81dd7678a69c66f7746cf < 922f85e6e88fdea723a26854c3a6dcb4beb8d0b9 0626e6641f6b467447c81dd7678a69c66f7746cf < 96a82e19434a2522525baab59c33332658bc7653 0626e6641f6b467447c81dd7678a69c66f7746cf < d79c8bebaa622ee223128be7c66d8aaeeb634a57 0626e6641f6b467447c81dd7678a69c66f7746cf < 2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e 0626e6641f6b467447c81dd7678a69c66f7746cf < 015ef163d65496ae3ba6192c96140a22743f0353 0626e6641f6b467447c81dd7678a69c66f7746cf < 9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb 0626e6641f6b467447c81dd7678a69c66f7746cf < 9b493ab6f35178afd8d619800df9071992f715de
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/922f85e6e88fdea723a26854c3a6dcb4beb8d0b9 git.kernel.org: https://git.kernel.org/stable/c/96a82e19434a2522525baab59c33332658bc7653 git.kernel.org: https://git.kernel.org/stable/c/d79c8bebaa622ee223128be7c66d8aaeeb634a57 git.kernel.org: https://git.kernel.org/stable/c/2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e git.kernel.org: https://git.kernel.org/stable/c/015ef163d65496ae3ba6192c96140a22743f0353 git.kernel.org: https://git.kernel.org/stable/c/9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb git.kernel.org: https://git.kernel.org/stable/c/9b493ab6f35178afd8d619800df9071992f715de zerodayinitiative.com: https://www.zerodayinitiative.com/advisories/ZDI-25-917/ lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html