CVE-2026-99142

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.

References

https://git.kernel.org/stable/c/c47a7b11bcb3d45e29723afcf6336866476b1d08

https://git.kernel.org/stable/c/a866a8a753922cdf7710b8eb3f686dc0efc06505

https://git.kernel.org/stable/c/75e894f92417390f0ef44fd350f2d3634c784876

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-111894

Details

Source: Mitre, NVD

Published: 2026-10-28

Updated: 2026-10-28

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00174