Bug 2383513 (CVE-2025-38461) - CVE-2025-38461 kernel: vsock: Fix transport_* TOCTOU
Summary: CVE-2025-38461 kernel: vsock: Fix transport_* TOCTOU
Keywords:
Status: NEW
Alias: CVE-2025-38461
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: 2025-07-25 16:03 UTC by OSIDB Bzimport
Modified: 2025-10-15 00:25 UTC (History)
0 users

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

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:15005 0 None None None 2025-09-02 06:45:29 UTC
Red Hat Product Errata RHSA-2025:15011 0 None None None 2025-09-02 06:54:26 UTC
Red Hat Product Errata RHSA-2025:16372 0 None None None 2025-09-22 14:09:00 UTC
Red Hat Product Errata RHSA-2025:16373 0 None None None 2025-09-22 11:03:26 UTC
Red Hat Product Errata RHSA-2025:16669 0 None None None 2025-09-25 00:28:35 UTC
Red Hat Product Errata RHSA-2025:17122 0 None None None 2025-10-01 00:22:25 UTC
Red Hat Product Errata RHSA-2025:17123 0 None None None 2025-10-01 00:21:46 UTC
Red Hat Product Errata RHSA-2025:17159 0 None None None 2025-10-01 18:10:22 UTC
Red Hat Product Errata RHSA-2025:17192 0 None None None 2025-10-01 19:16:49 UTC
Red Hat Product Errata RHSA-2025:18043 0 None None None 2025-10-15 00:25:00 UTC

Description OSIDB Bzimport 2025-07-25 16:03:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

vsock: Fix transport_* TOCTOU

Transport assignment may race with module unload. Protect new_transport
from becoming a stale pointer.

This also takes care of an insecure call in vsock_use_local_transport();
add a lockdep assert.

BUG: unable to handle page fault for address: fffffbfff8056000
Oops: Oops: 0000 [#1] SMP KASAN
RIP: 0010:vsock_assign_transport+0x366/0x600
Call Trace:
 vsock_connect+0x59c/0xc40
 __sys_connect+0xe8/0x100
 __x64_sys_connect+0x6e/0xc0
 do_syscall_64+0x92/0x1c0
 entry_SYSCALL_64_after_hwframe+0x4b/0x53
Comment 1 Jon Moroney 2025-07-25 16:57:17 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T
Comment 4 errata-xmlrpc 2025-09-02 06:45:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:15005 https://access.redhat.com/errata/RHSA-2025:15005
Comment 5 errata-xmlrpc 2025-09-02 06:54:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:15011 https://access.redhat.com/errata/RHSA-2025:15011
Comment 8 errata-xmlrpc 2025-09-22 11:03:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:16373 https://access.redhat.com/errata/RHSA-2025:16373
Comment 9 errata-xmlrpc 2025-09-22 14:08:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:16372 https://access.redhat.com/errata/RHSA-2025:16372
Comment 10 errata-xmlrpc 2025-09-25 00:28:34 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:16669 https://access.redhat.com/errata/RHSA-2025:16669
Comment 11 errata-xmlrpc 2025-10-01 00:21:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:17123 https://access.redhat.com/errata/RHSA-2025:17123
Comment 12 errata-xmlrpc 2025-10-01 00:22:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:17122 https://access.redhat.com/errata/RHSA-2025:17122
Comment 13 errata-xmlrpc 2025-10-01 18:10:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:17159 https://access.redhat.com/errata/RHSA-2025:17159
Comment 14 errata-xmlrpc 2025-10-01 19:16:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:17192 https://access.redhat.com/errata/RHSA-2025:17192
Comment 15 errata-xmlrpc 2025-10-15 00:24:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:18043 https://access.redhat.com/errata/RHSA-2025:18043
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