CVE-2025-38088: powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap
Vulnerability summary
CVE-2025-38088 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 57 · Related 52Timeline
- 30-06-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap memtrace mmap issue has an out of bounds issue. This patch fixes the by checking that the requested mapping region size should stay within the allocated region size.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.17% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu133 products
- linux< 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1092.99 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.35-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < 81260c41b518b6f32c701425f1427562fa92f293 | ≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < 620b77b23c41a6546e5548ffe2ea3ad71880dde4 | ≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < 8635e325b85dfb9ddebdfaa6b5605d40d16cd147 | ≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < 9c340b56d60545e4a159e41523dd8b23f81d3261 | ≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < bbd5a9ddb0f9750783a48a871c9e12c0b68c5f39 | ≥ 08a022ad3dfafc7e33d4529015e14bb75179cacc, < cd097df4596f3a1e9d75eb8520162de1eb8485b2 | 5.13
- linux_kernel≥ 5.13, < 5.15.186 | ≥ 5.16, < 6.1.142 | ≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3 | 6.16:rc1
3 vendors · 137 products
References
43 links
lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory