What’s Vulnerable › Vulnerabilities

CVE-2025-38087: net/sched: fix use-after-free in taprio_dev_notifier

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-30 · updated 2026-07-30
• Weakness: CWE-416

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.

Affected products

• Linux kernel: from 6.3 before 6.6.95; from 6.7 before 6.12.35; from 6.13 before 6.15.4; 6.16-rc1, 6.16-rc2 — fixed in 6.12.35, 6.15.4, 6.6.95

How to fix

Upgrade to a fixed version: Linux kernel 6.12.35, 6.15.4, 6.6.95. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/8a008c89e5e5c5332e4c0a33d707db9ddd529f8a
• https://git.kernel.org/stable/c/8c5713ce1ced75f9e9ed5c642ea3d2ba06ead69c
• https://git.kernel.org/stable/c/b1547d28ba468bc3b88764efd13e4319bab63be8
• https://git.kernel.org/stable/c/b160766e26d4e2e2d6fe2294e0b02f92baefcec5

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