Bug 2383518 (CVE-2025-38437) - CVE-2025-38437 kernel: ksmbd: fix potential use-after-free in oplock/lease break ack
Summary: CVE-2025-38437 kernel: ksmbd: fix potential use-after-free in oplock/lease br...
Keywords:
Status: NEW
Alias: CVE-2025-38437
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-07-25 16:03 UTC by OSIDB Bzimport
Modified: 2025-07-25 16:51 UTC (History)
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Description OSIDB Bzimport 2025-07-25 16:03:52 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix potential use-after-free in oplock/lease break ack

If ksmbd_iov_pin_rsp return error, use-after-free can happen by
accessing opinfo->state and opinfo_put and ksmbd_fd_put could
called twice.
Comment 1 Jon Moroney 2025-07-25 16:50:12 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025072559-CVE-2025-38437-9752@gregkh/T
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