CVE-2025-38191
ksmbd: fix null pointer dereference in destroy_previous_session
Vexday Risk Score
3Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS —EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
04 jul 2025Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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().
Produtos afetados
Linux · LinuxQuer saber se a sua infraestrutura está exposta a isto?
Falar com a TrueHacking →Referências
https://git.kernel.org/stable/c/076f1adefb9837977af7ed233883842ddc446644https://git.kernel.org/stable/c/0902625a24eea7fdc187faa5d97df244d159dd6ehttps://git.kernel.org/stable/c/1193486dffb7432a09f57f5d09049b4d4123538bhttps://git.kernel.org/stable/c/281afc52e2961cd5dd8326ebc9c5bc40904c0468https://git.kernel.org/stable/c/7ac5b66acafcc9292fb935d7e03790f2b8b2dc0ehttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlhttps://www.zerodayinitiative.com/advisories/ZDI-25-610/