CVE-2026-99238

tracing: Hold trace_types_lock when updating modules in persistent instances

HIGH
7.8
CVSS Score
Published: November 2, 2026 at 04:06 PM UTC
Updated: November 3, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Hold trace_types_lock when updating modules in persistent instances trace_module_record() walks ftrace_trace_arrays from the module notifier without trace_types_lock. A concurrent rmdir of an instance removes it from the list and frees it under that lock, so a module load or unload can walk into a freed trace_array.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5f3719f697c3fdfae5cd6805f10ac7a04b0f4e436.15
Vendor states this is fixed in 6.18.60 (unaffected)
Vendor states this is fixed in 7.2.14 (unaffected)
Vendor states this is fixed in 7.3.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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