Bug 2389453 (CVE-2025-38587) - CVE-2025-38587 kernel: ipv6: fix possible infinite loop in fib6_info_uses_dev()
Summary: CVE-2025-38587 kernel: ipv6: fix possible infinite loop in fib6_info_uses_dev()
Keywords:
Status: NEW
Alias: CVE-2025-38587
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: 2025-08-19 18:01 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:30 UTC (History)
2 users (show)

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


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Description OSIDB Bzimport 2025-08-19 18:01:23 UTC
In the Linux kernel, the following vulnerability has been resolved:

ipv6: fix possible infinite loop in fib6_info_uses_dev()

fib6_info_uses_dev() seems to rely on RCU without an explicit
protection.

Like the prior fix in rt6_nlmsg_size(),
we need to make sure fib6_del_route() or fib6_add_rt2node()
have not removed the anchor from the list, or we risk an infinite loop.

Comment 1 Jon Moroney 2025-08-19 20:32:47 UTC Comment hidden (spam)

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