Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in destroy_previous_session If client set ->PreviousSessionId on kerberos session setup stage, NULL pointer dereference error will happen. Since sess->user is not set yet, It can pass the user argument as NULL to destroy_previous_session. sess->user will be set in ksmbd_krb5_authenticate(). So this patch move calling destroy_previous_session() after ksmbd_krb5_authenticate().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 281afc52e2961cd5dd8326ebc9c5bc40904c0468; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 0902625a24eea7fdc187faa5d97df244d159dd6e; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 1193486dffb7432a09f57f5d09049b4d4123538b; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 076f1adefb9837977af7ed233883842ddc446644; affected 0626e6641f6b467447c81dd7678a69c66f7746cf before 7ac5b66acafcc9292fb935d7e03790f2b8b2dc0e |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 6.1.142 through 6.1.*; unaffected 6.6.95 through 6.6.*; unaffected 6.12.35 through 6.12.*; unaffected 6.15.4 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/281afc52e2961cd5dd8326ebc9c5bc40904c0468
- https://git.kernel.org/stable/c/0902625a24eea7fdc187faa5d97df244d159dd6e
- https://git.kernel.org/stable/c/1193486dffb7432a09f57f5d09049b4d4123538b
- https://git.kernel.org/stable/c/076f1adefb9837977af7ed233883842ddc446644
- https://git.kernel.org/stable/c/7ac5b66acafcc9292fb935d7e03790f2b8b2dc0e
- https://www.zerodayinitiative.com/advisories/ZDI-25-610/
ADP enrichment
No English description supplied.