CVE-2025-38094: debian debian_linux Improper Locking
Vulnerability summary
CVE-2025-38094 is a medium (CVSS 5.5) Improper Locking vulnerability in debian debian_linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 43 · Related 41Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: cadence: macb: Fix a possible deadlock in macb_halt_tx. There is a situation where after THALT is set high, TGO stays high as well. Because jiffies are never updated, as we are in a context with interrupts disabled, we never exit that loop and have a deadlock. That deadlock was noticed on a sama5d4 device that stayed locked for days. Use retries instead of jiffies so that the timeout really works and we do not have a deadlock anymore.
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
+0.04 pp
From 0.14% 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
Ubuntu144 products
- linuxAll versions (No fix recorded) | < 5.15.0-144.157 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1088.95 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.140-1 | < 6.12.30-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ e86cd53afc5907f7c221b709916e2dd354e14691, < 0772a608d799ac0d127c0a36047a2725777aba9d | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < 64675a9c00443b2e8af42af08c38fc1b78b68ba2 | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < aace6b63892ce8307e502a60fe2f5a4bc6e1cfe7 | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < 1d60c0781c1bbeaa1196b0d8aad5c435f06cb7c4 | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < 3e64d35475aa21d13dab71da51de51923c1a3a48 | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < 84f98955a9de0e0f591df85aa1a44f3ebcf1cb37 | ≥ e86cd53afc5907f7c221b709916e2dd354e14691, < c92d6089d8ad7d4d815ebcedee3f3907b539ff1f | 3.8
- linux_kernel≥ 3.8, < 5.10.238 | ≥ 5.11, < 5.15.184 | ≥ 5.16, < 6.1.140 | ≥ 6.2, < 6.6.92 | ≥ 6.7, < 6.12.30 | ≥ 6.13, < 6.14.8 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5 | 6.15:rc6
3 vendors · 148 products