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CVE-2025-38087 is a use-after-free vulnerability in the Linux kernel TAPRIO traffic-control scheduler. The taprio_dev_notifier() function lacks an RCU read-side critical section, allowing a race with advance_sched() to result in access to freed memory. The fix adds rcu_read_lock() inside taprio_dev_notifier() to protect the affected access.
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A use-after-free vulnerability in taprio_dev_notifier within the Linux kernel's network scheduling subsystem. Red Hat addresses it in Important-rated advisory RHSA-2025:12662. The kernel update requires a reboot.
Listed as one of 573 vulnerabilities addressed by SUSE-SU-2026:20560-1 for kernel packages in SUSE Linux Micro Extras 6.2.
A use-after-free vulnerability in the Linux kernel network scheduler's taprio_dev_notifier function.
Linux kernel traffic-control scheduler use-after-free flaw in taprio_dev_notifier.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.