Bug 2334809 (CVE-2024-56729) - CVE-2024-56729 kernel: smb: Initialize cfid->tcon before performing network ops
Summary: CVE-2024-56729 kernel: smb: Initialize cfid->tcon before performing network ops
Keywords:
Status: NEW
Alias: CVE-2024-56729
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:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-12-29 12:01 UTC by OSIDB Bzimport
Modified: 2025-05-13 08:38 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:6966 0 None None None 2025-05-13 08:38:03 UTC

Description OSIDB Bzimport 2024-12-29 12:01:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

smb: Initialize cfid->tcon before performing network ops

Avoid leaking a tcon ref when a lease break races with opening the
cached directory. Processing the leak break might take a reference to
the tcon in cached_dir_lease_break() and then fail to release the ref in
cached_dir_offload_close, since cfid->tcon is still NULL.
Comment 1 Avinash Hanwate 2024-12-30 05:02:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122924-CVE-2024-56729-8f1c@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:38:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966
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