CVE-2026-99238

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-11-02 Modified: 2026-11-03 First seen: 2026-11-02 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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 Software (9)

VendorProductVersion
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < 57408eac99b0d8a005796346d317d31f0ca4e07a
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < dab2bd4d67ad5eaa95019a9511f8d379401b5021
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < 244c442f54601a24c86ad90572bf36fc3df41c5e
Linux Linux 6.15
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < 57408eac99b0d8a005796346d317d31f0ca4e07a
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < dab2bd4d67ad5eaa95019a9511f8d379401b5021
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < 244c442f54601a24c86ad90572bf36fc3df41c5e
Linux Linux 5f3719f697c3fdfae5cd6805f10ac7a04b0f4e43 < 66877a312ae3c2c3d849e82e882f642ffd4ec3e2
Linux Linux 6.15

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001200
Percentile 1.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00120
2026-11-12
0.00120
2026-11-10
0.00120
2026-11-09
0.00120
2026-11-08
0.00120
2026-11-07
0.00120
2026-11-06
0.00120
2026-11-05
0.00120
2026-11-04
0.00120
2026-11-03
0.00119

Intelligence Sources

mitre ref →
nvd ref →