CVE-2025-38087: net/sched: fix use-after-free in taprio_dev_notifier
Vulnerability summary
CVE-2025-38087 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.4% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 90 · Related 84Timeline
- 30-06-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in taprio_dev_notifier Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free. Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.
Ubuntu120 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≥ fed87cc6718ad5f80aa739fee3c5979a8b09d3a6, < 8c5713ce1ced75f9e9ed5c642ea3d2ba06ead69c | ≥ fed87cc6718ad5f80aa739fee3c5979a8b09d3a6, < 8a008c89e5e5c5332e4c0a33d707db9ddd529f8a | ≥ fed87cc6718ad5f80aa739fee3c5979a8b09d3a6, < b1547d28ba468bc3b88764efd13e4319bab63be8 | ≥ fed87cc6718ad5f80aa739fee3c5979a8b09d3a6, < b160766e26d4e2e2d6fe2294e0b02f92baefcec5 | 6.3
- linux_kernel≥ 6.3, < 6.6.95 | ≥ 6.7, < 6.12.35 | ≥ 6.13, < 6.15.4 | 6.16:rc1 | 6.16:rc2
Debian1 product
- linux< 6.12.35-1
3 vendors · 123 products
