Bug 2367536 (CVE-2025-37924) - CVE-2025-37924 kernel: ksmbd: fix use-after-free in kerberos authentication
Summary: CVE-2025-37924 kernel: ksmbd: fix use-after-free in kerberos authentication
Keywords:
Status: NEW
Alias: CVE-2025-37924
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-20 16:02 UTC by OSIDB Bzimport
Modified: 2025-05-20 23:54 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-05-20 16:02:53 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix use-after-free in kerberos authentication

Setting sess->user = NULL was introduced to fix the dangling pointer
created by ksmbd_free_user. However, it is possible another thread could
be operating on the session and make use of sess->user after it has been
passed to ksmbd_free_user but before sess->user is set to NULL.
Comment 1 Jon Moroney 2025-05-20 23:46:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052004-CVE-2025-37924-ec7d@gregkh/T
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