CVE-2025-38587: debian debian_linux Infinite Loop
Vulnerability summary
CVE-2025-38587 is a medium (CVSS 5.5) Infinite Loop vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 41 · Related 38Timeline
- 19-08-2025PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.01 pp
From 0.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu121 products
- linux< 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2, < bc85e62394f008fa848c4ba02c936c735a3e8ef5 | ≥ 52da02521ede55fb86546c3fffd9377b3261b91f, < 9cb6de8ee144a94ae7a40bdb32560329ab7276f0 | ≥ 34a949e7a0869dfa31a40416d2a56973fae1807b, < db65739d406c72776fbdbbc334be827ef05880d2 | ≥ d9ccb18f83ea2bb654289b6ecf014fd267cc988b, < 16d21816c0918f8058b5fc14cbe8595d62046e2d | ≥ d9ccb18f83ea2bb654289b6ecf014fd267cc988b, < e09be457b71b983a085312ff9e981f51e4ed3211 | ≥ d9ccb18f83ea2bb654289b6ecf014fd267cc988b, < f8d8ce1b515a0a6af72b30502670a406cfb75073 | 11edcd026012ac18acee0f1514db3ed1b160fc6f | ≥ 6.1.128, < 6.1.148 | ≥ 6.6.75, < 6.6.102 | ≥ 6.12.2, < 6.12.42 | ≥ 6.11.11, < 6.12 | 6.13
- linux_kernel≥ 6.1.128, < 6.1.148 | ≥ 6.6.75, < 6.6.102 | ≥ 6.11.11, < 6.12 | ≥ 6.12.2, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1
3 vendors · 125 products
References
33 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory