Bug 2414521 (CVE-2025-40135) - CVE-2025-40135 kernel: ipv6: use RCU in ip6_xmit()
Summary: CVE-2025-40135 kernel: ipv6: use RCU in ip6_xmit()
Keywords:
Status: NEW
Alias: CVE-2025-40135
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-12 11:05 UTC by OSIDB Bzimport
Modified: 2025-11-13 12:50 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-11-12 11:05:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv6: use RCU in ip6_xmit()

Use RCU in ip6_xmit() in order to use dst_dev_rcu() to prevent
possible UAF.
Comment 1 Alexander B 2025-11-13 12:48:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111255-CVE-2025-40135-67ca@gregkh/T
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