CVE-2025-38526: ice: add NULL check in eswitch lag check
Vulnerability summary
CVE-2025-38526 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 38 · Related 38Timeline
- 16-08-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ice: add NULL check in eswitch lag check The function ice_lag_is_switchdev_running() is being called from outside of the LAG event handler code. This results in the lag->upper_netdev being NULL sometimes. To avoid a NULL-pointer dereference, there needs to be a check before it is dereferenced.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/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:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.36% on 22-09-2026
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
Ubuntu121 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≥ 776fe19953b0e0af00399e50fb3b205101d4b3c1, < 27591d926191e42b2332e4bad3bcd3a49def393b | ≥ 776fe19953b0e0af00399e50fb3b205101d4b3c1, < 5a5d64f0eec82076b2c09fee2195d640cfbe3379 | ≥ 776fe19953b0e0af00399e50fb3b205101d4b3c1, < 245917d3c5ed7c6ae720302b64eac5c6f0c85177 | ≥ 776fe19953b0e0af00399e50fb3b205101d4b3c1, < 3ce58b01ada408b372f15b7c992ed0519840e3cf | 6.6
- linux_kernel≥ 6.6.1, < 6.6.100 | ≥ 6.7, < 6.12.40 | ≥ 6.13, < 6.15.8 | 6.6 | 6.6:rc6 | 6.6:rc7 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4 | 6.16:rc5 | 6.16:rc6
Debian1 product
- linux< 6.12.41-1 | < 6.16.3-1
3 vendors · 124 products
