CVE-2026-99142

HIGH
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-10-28 Modified: 2026-10-31 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Integ. Impact

CVSS Vector Breakdown

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

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Check operator stack capacity before pushing predicate_parse() uses the first operator stack entry before processing any opening parentheses. A push then increments top before writing. The existing check still permits that write when top already points to the last allocated entry, which can access beyond the operator stack. Reject the push when top reaches the last allocated entry.

Affected Software (13)

VendorProductVersion
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < a866a8a753922cdf7710b8eb3f686dc0efc06505
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < c43c41ec62ca54ae145aa4912c6692a26d625734
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < d6f0006f194db49c54117ae22146421da5a2ca59
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < a866a8a753922cdf7710b8eb3f686dc0efc06505
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < 75e894f92417390f0ef44fd350f2d3634c784876
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < c47a7b11bcb3d45e29723afcf6336866476b1d08
Linux Linux 6.6
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < c43c41ec62ca54ae145aa4912c6692a26d625734
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < d6f0006f194db49c54117ae22146421da5a2ca59
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < a866a8a753922cdf7710b8eb3f686dc0efc06505
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < 75e894f92417390f0ef44fd350f2d3634c784876
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f < c47a7b11bcb3d45e29723afcf6336866476b1d08
Linux Linux 6.6

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.14%
Raw Score 0.001350
Percentile 3.0%
Date 2026-11-01

EPSS Trend

2026-11-01
0.00135
2026-10-31
0.00176
2026-10-30
0.00174
2026-10-29
0.00174

Intelligence Sources

mitre ref →
nvd ref →