CVE-2024-38593: net: micrel: Fix receiving the timestamp in the frame for lan8841
Vulnerability summary
CVE-2024-38593 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 13.2% 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 8 · Related 5Timeline
- 19-06-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: micrel: Fix receiving the timestamp in the frame for lan8841 The blamed commit started to use the ptp workqueue to get the second part of the timestamp. And when the port was set down, then this workqueue is stopped. But if the config option NETWORK_PHY_TIMESTAMPING is not enabled, then the ptp_clock is not initialized so then it would crash when it would try to access the delayed work. So then basically by setting up and then down the port, it would crash. The fix consists in checking if the ptp_clock is initialized and only then cancel the delayed work.
CVSS metrics
4 scores · 4 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
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.22% 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.
Ubuntu92 products
- linux< 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ cc75549548482ed653c23f212544e58cb38ea980, < 3ddf170e4a604f5d4d9459a36993f5e92b53e8b0 | ≥ cc75549548482ed653c23f212544e58cb38ea980, < 3fd4282d5f25c3c97fef3ef0b89b82ef4e2bc975 | ≥ cc75549548482ed653c23f212544e58cb38ea980, < 64a47cf634ae44e92be24ebc982410841093bd7b | ≥ cc75549548482ed653c23f212544e58cb38ea980, < aea27a92a41dae14843f92c79e9e42d8f570105c | 6.5
- linux_kernel≥ 6.5, < 6.6.33 | ≥ 6.7, < 6.8.12 | ≥ 6.9, < 6.9.3
Debian1 product
- linux< 6.8.12-1
3 vendors · 95 products