Vulnerability-Lookup

GHSA-WRCG-Q86C-34HW

Vulnerability from github – Published: 2026-10-28 12:31 – Updated: 2026-10-28 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

tracing: Keep the predicate limit separate from program capacity

predicate_parse() adds two to nr_preds to reserve the terminal TRUE and FALSE entries. It also uses that increased value as the limit for parsed predicates. If the initial count is smaller than the number actually parsed, the program can fill the allocation and subsequent accesses can go past its end.

Keep nr_preds as the predicate limit and use a separate value for the allocation size. This leaves space for both terminal entries and a zeroed entry when parsing stops at the limit.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-99143"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-28T11:17:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Keep the predicate limit separate from program capacity\n\npredicate_parse() adds two to nr_preds to reserve the terminal TRUE\nand FALSE entries. It also uses that increased value as the limit for\nparsed predicates. If the initial count is smaller than the number\nactually parsed, the program can fill the allocation and subsequent\naccesses can go past its end.\n\nKeep nr_preds as the predicate limit and use a separate value for the\nallocation size. This leaves space for both terminal entries and a\nzeroed entry when parsing stops at the limit.",
  "id": "GHSA-wrcg-q86c-34hw",
  "modified": "2026-10-28T12:31:05Z",
  "published": "2026-10-28T12:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99143"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2058a1fe791bb30fd6e4875a7ada3237076c8541"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68ecc9510bb82dd78585c02bd5357f34ee16b153"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/803aa6fc2dbea25ab9d3ed19eca1c96d0ab17445"
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CVE-2026-99143 (GCVE-0-2026-99143)

Vulnerability from cvelistv5 – Published: 2026-10-28 10:34 – Updated: 2026-10-28 10:34

Title

tracing: Keep the predicate limit separate from program capacity

Summary

In the Linux kernel, the following vulnerability has been resolved: tracing: Keep the predicate limit separate from program capacity predicate_parse() adds two to nr_preds to reserve the terminal TRUE and FALSE entries. It also uses that increased value as the limit for parsed predicates. If the initial count is smaller than the number actually parsed, the program can fill the allocation and subsequent accesses can go past its end. Keep nr_preds as the predicate limit and use a separate value for the allocation size. This leaves space for both terminal entries and a zeroed entry when parsing stops at the limit.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/2058a1fe791bb30fd…
https://git.kernel.org/stable/c/68ecc9510bb82dd78…
https://git.kernel.org/stable/c/803aa6fc2dbea25ab…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 39f7c41c908bc82947ce47cdd021520ff486c53f , < 2058a1fe791bb30fd6e4875a7ada3237076c8541 (git) Affected: 39f7c41c908bc82947ce47cdd021520ff486c53f , < 68ecc9510bb82dd78585c02bd5357f34ee16b153 (git) Affected: 39f7c41c908bc82947ce47cdd021520ff486c53f , < 803aa6fc2dbea25ab9d3ed19eca1c96d0ab17445 (git)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.18.59 , ≤ 6.18.* (semver) Unaffected: 7.2.13 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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        {
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          "programFiles": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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