CVE-2025-38101: linux Out-of-bounds Write
Vulnerability summary
CVE-2025-38101 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 28 · Related 28Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix buffer locking in ring_buffer_subbuf_order_set() Enlarge the critical section in ring_buffer_subbuf_order_set() to ensure that error handling takes place with per-buffer mutex held, thus preventing list corruption and other concurrency-related issues.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
+0.03 pp
From 0.17% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu119 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)
Linux2 products
- linux≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < e09c0600beea469b3ebf974464e526a02d59ad62 | ≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 0fc9a295cd8e59c3636e97395e7c74a9c89fee42 | ≥ f9b94daa542a8d2532f0930f01cd9aec2d19621b, < 40ee2afafc1d9fe3aa44a6fbe440d78a5c96a72e | 6.8
- linux_kernel≥ 6.8, < 6.12.34 | ≥ 6.13, < 6.15.3
Debian1 product
- linux< 6.12.35-1
3 vendors · 122 products
