CVE-2024-38615: cpufreq: exit() callback is optional
Vulnerability summary
CVE-2024-38615 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.7% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 34 · Related 25Timeline
- 19-06-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: exit() callback is optional The exit() callback is optional and shouldn't be called without checking a valid pointer first. Also, we must clear freq_table pointer even if the exit() callback isn't present.
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
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Ubuntu124 products
- linux< 5.4.0-192.212 | < 5.15.0-121.131 | < 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1130.140 | < 5.15.0-1069.75 | < 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < 2d730b465e377396d2a09a53524b96b111f7ccb6 | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < dfc56ff5ec9904c008e9376d90a6d7e2d2bec4d3 | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < 35db5e76d5e9f752476df5fa0b9018a2398b0378 | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < 8bc9546805e572ad101681437a49939f28777273 | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < 3e99f060cfd2e36504d62c9132b453ade5027e1c | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < ae37ebca325097d773d7bb6ec069123b30772872 | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < a8204d1b6ff762d2171d365c2c8560285d0a233d | ≥ 91a12e91dc39137906d929a4ff6f9c32c59697fa, < b8f85833c05730d631576008daaa34096bc7f3ce | 5.1
- linux_kernel≥ 5.1, < 5.4.278 | ≥ 5.5, < 5.10.219 | ≥ 5.11, < 5.15.161 | ≥ 5.16, < 6.1.93 | ≥ 6.2, < 6.6.33 | ≥ 6.7, < 6.8.12 | ≥ 6.9, < 6.9.3
Debian1 product
- linux< 6.1.94-1 | < 6.8.12-1
3 vendors · 127 products