Bug 2375531 (CVE-2025-38087) - CVE-2025-38087 kernel: net/sched: fix use-after-free in taprio_dev_notifier
Summary: CVE-2025-38087 kernel: net/sched: fix use-after-free in taprio_dev_notifier
Keywords:
Status: NEW
Alias: CVE-2025-38087
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: 2025-06-30 08:01 UTC by OSIDB Bzimport
Modified: 2025-10-16 08:11 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-2025:11810 0 None None None 2025-07-28 03:01:36 UTC
Red Hat Product Errata RHSA-2025:12662 0 None None None 2025-08-04 09:20:58 UTC
Red Hat Product Errata RHSA-2025:12746 0 None None None 2025-08-04 16:18:40 UTC

Description OSIDB Bzimport 2025-06-30 08:01:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net/sched: fix use-after-free in taprio_dev_notifier

Since taprio’s taprio_dev_notifier() isn’t protected by an
RCU read-side critical section, a race with advance_sched()
can lead to a use-after-free.

Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.
Comment 1 Avinash Hanwate 2025-06-30 15:00:01 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025063052-CVE-2025-38087-cd0f@gregkh/T
Comment 4 errata-xmlrpc 2025-07-28 03:01:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:11810 https://access.redhat.com/errata/RHSA-2025:11810
Comment 5 errata-xmlrpc 2025-08-04 09:20:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:12662 https://access.redhat.com/errata/RHSA-2025:12662
Comment 6 errata-xmlrpc 2025-08-04 16:18:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:12746 https://access.redhat.com/errata/RHSA-2025:12746
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