CVE-2026-99143

Full vulnerability record from the local CVENow database.

Description

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

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-28 11:17:34.320000

Last modified

2026-10-28 11:17:34.320000

View original CVE JSON

{
  "id": "CVE-2026-99143",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-28T11:17:34.320",
  "lastModified": "2026-10-28T11:17:34.320",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "kernel/trace/trace_events_filter.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "39f7c41c908bc82947ce47cdd021520ff486c53f",
              "lessThan": "2058a1fe791bb30fd6e4875a7ada3237076c8541",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "39f7c41c908bc82947ce47cdd021520ff486c53f",
              "lessThan": "68ecc9510bb82dd78585c02bd5357f34ee16b153",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "39f7c41c908bc82947ce47cdd021520ff486c53f",
              "lessThan": "803aa6fc2dbea25ab9d3ed19eca1c96d0ab17445",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "kernel/trace/trace_events_filter.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.6",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.6",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.59",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.13",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2058a1fe791bb30fd6e4875a7ada3237076c8541",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/68ecc9510bb82dd78585c02bd5357f34ee16b153",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/803aa6fc2dbea25ab9d3ed19eca1c96d0ab17445",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}