CVE-2026-99142

Full vulnerability record from the local CVENow database.

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

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

Published

2026-10-28 11:17:34.207000

Last modified

2026-10-28 11:17:34.207000

View original CVE JSON

{
  "id": "CVE-2026-99142",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-28T11:17:34.207",
  "lastModified": "2026-10-28T11:17:34.207",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Check operator stack capacity before pushing\n\npredicate_parse() uses the first operator stack entry before processing\nany opening parentheses. A push then increments top before writing.\nThe existing check still permits that write when top already points to\nthe last allocated entry, which can access beyond the operator stack.\n\nReject the push when top reaches the last allocated entry."
    }
  ],
  "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": "a866a8a753922cdf7710b8eb3f686dc0efc06505",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "39f7c41c908bc82947ce47cdd021520ff486c53f",
              "lessThan": "75e894f92417390f0ef44fd350f2d3634c784876",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "39f7c41c908bc82947ce47cdd021520ff486c53f",
              "lessThan": "c47a7b11bcb3d45e29723afcf6336866476b1d08",
              "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/75e894f92417390f0ef44fd350f2d3634c784876",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a866a8a753922cdf7710b8eb3f686dc0efc06505",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c47a7b11bcb3d45e29723afcf6336866476b1d08",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}