CVE-2026-93111

kernel: bpf: Mark tracing_multi trampolines as ftrace managed

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 17, 2026

Updated · October 5, 2026

Description

A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) tracing mechanism. This vulnerability occurs when tracing_multi links are not properly managed, specifically when they fail to release resources after being attached alongside fentry links. This improper resource handling can lead to system instability or a denial of service (DoS) condition, impacting the availability of the system.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-772 · Missing Release of Resource after Effective Lifetime