CVE-2025-38587

ipv6: fix possible infinite loop in fib6_info_uses_dev()

State: Published
Severity: Not scored
Published: Aug 19, 2025
Updated: May 23, 2026
Reserved: Apr 16, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2 to before bc85e62394f008fa848c4ba02c936c735a3e8ef5Affected 52da02521ede55fb86546c3fffd9377b3261b91f to before 9cb6de8ee144a94ae7a40bdb32560329ab7276f0Affected 34a949e7a0869dfa31a40416d2a56973fae1807b to before db65739d406c72776fbdbbc334be827ef05880d2Affected d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before 16d21816c0918f8058b5fc14cbe8595d62046e2dAffected d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before e09be457b71b983a085312ff9e981f51e4ed3211Affected d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before f8d8ce1b515a0a6af72b30502670a406cfb75073Affected 11edcd026012ac18acee0f1514db3ed1b160fc6fAffected 6.1.128 to before 6.1.148Affected 6.6.75 to before 6.6.102Affected 6.12.2 to before 6.12.42Affected 6.11.11 to before 6.12Affected
LinuxLinux	6.13Affected before 6.13Not affected 6.1.148 through 6.1.Not affected 6.6.102 through 6.6.Not affected 6.12.42 through 6.12.Not affected 6.15.10 through 6.15.Not affected 6.16.1 through 6.16.*Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2 to before bc85e62394f008fa848c4ba02c936c735a3e8ef5Affected
52da02521ede55fb86546c3fffd9377b3261b91f to before 9cb6de8ee144a94ae7a40bdb32560329ab7276f0Affected
34a949e7a0869dfa31a40416d2a56973fae1807b to before db65739d406c72776fbdbbc334be827ef05880d2Affected
d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before 16d21816c0918f8058b5fc14cbe8595d62046e2dAffected
d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before e09be457b71b983a085312ff9e981f51e4ed3211Affected
d9ccb18f83ea2bb654289b6ecf014fd267cc988b to before f8d8ce1b515a0a6af72b30502670a406cfb75073Affected
11edcd026012ac18acee0f1514db3ed1b160fc6fAffected
6.1.128 to before 6.1.148Affected
6.6.75 to before 6.6.102Affected
6.12.2 to before 6.12.42Affected
6.11.11 to before 6.12Affected

LinuxLinux

6.13Affected
before 6.13Not affected
6.1.148 through 6.1.*Not affected
6.6.102 through 6.6.*Not affected
6.12.42 through 6.12.*Not affected
6.15.10 through 6.15.*Not affected
6.16.1 through 6.16.*Not affected
6.17 and laterNot affected

References

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