CVE-2025-38032: Linux kernel · mr: consolidate the ipmr_can_free_table() checks.
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 13 Nov 2026, 18:51 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
AI-suggested
The vulnerability has been resolved by consolidating the ipmr_can_free_table() sanity checks into a single helper function. No explicit patch links or fixed versions are provided in the data. Users should apply the latest Linux kernel updates that include this fix once available. Until then, monitoring vendor advisories for official patches is recommended. There is no indication that the issue is exploitable in the wild or that additional mitigations are required.
Description
CVE-2025-38032 is a medium severity vulnerability in the Linux kernel related to the ipmr_can_free_table() checks in the multicast routing (mr) code. The flaw involves a kernel warning and potential crash (splat) during the ipmr net namespace cleanup path when CONFIG_IP_MROUTE_MULTIPLE_TABLES is disabled. The issue stems from a loose sanity check that was consolidated into a single helper function to improve robustness. This vulnerability affects kernel stability but does not impact confidentiality or integrity.