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CVE-2026-99142

tracing: Check operator stack capacity before pushing

N/A
Published: October 28, 2026 at 10:34 AM UTC
Updated: October 28, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

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

Linux Kernel· Linux
90%
39f7c41c908bc82947ce47cdd021520ff486c53f6.6
Vendor states this is fixed in 6.18.59 (unaffected)
Vendor states this is fixed in 7.2.13 (unaffected)
Vendor states this is fixed in 7.3 (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.

References (3)

Source: cverecord
https://git.kernel.org/stable/c/a866a8a753922cdf7710b8eb3f686dc0efc06505
Source: cverecord
https://git.kernel.org/stable/c/75e894f92417390f0ef44fd350f2d3634c784876
Source: cverecord
https://git.kernel.org/stable/c/c47a7b11bcb3d45e29723afcf6336866476b1d08

Quick Info

StatusRECEIVED

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