GHSA-VJC5-X57X-7C9H

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32
VLAI
Details

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

remoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()

table->offset[i] is a u32 from firmware, but was stored into a signed int. A crafted offset like 0xFFFFFFF0 becomes -16, placing hdr 16 bytes before the table buffer. The subsequent avail check was bypassed because the negative int was promoted to a large size_t in the expression "table_sz - offset - sizeof(*hdr)", yielding a large positive avail and letting the out-of-bounds hdr->type read proceed undetected.

Store the offset as u32 and validate it with unsigned comparisons before any pointer arithmetic.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-90314"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:17:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nremoteproc: fix OOB read via signed offset in rsc_table_for_each_entry()\n\ntable-\u003eoffset[i] is a u32 from firmware, but was stored into a signed\nint.  A crafted offset like 0xFFFFFFF0 becomes -16, placing hdr 16 bytes\nbefore the table buffer.  The subsequent avail check was bypassed\nbecause the negative int was promoted to a large size_t in the\nexpression \"table_sz - offset - sizeof(*hdr)\", yielding a large positive\navail and letting the out-of-bounds hdr-\u003etype read proceed undetected.\n\nStore the offset as u32 and validate it with unsigned comparisons before\nany pointer arithmetic.",
  "id": "GHSA-vjc5-x57x-7c9h",
  "modified": "2026-09-17T18:32:00Z",
  "published": "2026-09-17T18:32:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90314"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d385be8f199b349f325cf90584b47b6a044ea79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6282d47b24b0c98d08d02807d676a7f67b4c052e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a01ad25aa4f3a02153cf1d112cb9b65865cd5d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fd220604f06c746760183df74b07384c3fdd660"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb840ea69347aff7bde5a208e7b5b180669a7656"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc4940793aaa16a9cf90063b11d6926f8014a1b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c82241a9454b2d30d53b50884f94b7972ba44a5e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc85e0d3d3333fd5fd2d50c9a4578d209d7f2564"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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