CVE-2025-38562

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 922f85e6e88fdea723a26854c3a6dcb4beb8d0b9affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 96a82e19434a2522525baab59c33332658bc7653affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < d79c8bebaa622ee223128be7c66d8aaeeb634a57affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 2a30ed6428ce83afedca1a6c5c5c4247bcf12d0eaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 015ef163d65496ae3ba6192c96140a22743f0353affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 9c2dbbc959e1fcc6f603a1a843e9cf743ba383bbaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 9b493ab6f35178afd8d619800df9071992f715deaffected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.203 <= 5.15.*unaffected
LinuxLinux6.1.148 <= 6.1.*unaffected
LinuxLinux6.6.102 <= 6.6.*unaffected
LinuxLinux6.12.42 <= 6.12.*unaffected
LinuxLinux6.15.10 <= 6.15.*unaffected
LinuxLinux6.16.1 <= 6.16.*unaffected
LinuxLinux6.17 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References