7.1 High

In the Linux kernel, the following vulnerability has been resolved: tracing: Check operator stack capacity before pushing predicateparse()…

CVE-2026-99142

In the Linux kernel, the following vulnerability has been resolved: tracing: Check operator stack capacity before pushing predicateparse() 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.

Assessment

CVSS: 7.1 (v3.1)
Severity: High
EPSS: 0.17% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 28 October 2026
Last updated: 31 October 2026
Affected: Linux
Assigner: Linux

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

At the source

EUVD (ENISA)

References

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