ghsa-jc2j-hqm3-7764
Vulnerability from github
Published
2025-05-08 09:30
Modified
2025-05-08 09:30
Details

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

riscv: uprobes: Add missing fence.i after building the XOL buffer

The XOL (execute out-of-line) buffer is used to single-step the replaced instruction(s) for uprobes. The RISC-V port was missing a proper fence.i (i$ flushing) after constructing the XOL buffer, which can result in incorrect execution of stale/broken instructions.

This was found running the BPF selftests "test_progs: uprobe_autoattach, attach_probe" on the Spacemit K1/X60, where the uprobes tests randomly blew up.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37822"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-08T07:15:53Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: uprobes: Add missing fence.i after building the XOL buffer\n\nThe XOL (execute out-of-line) buffer is used to single-step the\nreplaced instruction(s) for uprobes. The RISC-V port was missing a\nproper fence.i (i$ flushing) after constructing the XOL buffer, which\ncan result in incorrect execution of stale/broken instructions.\n\nThis was found running the BPF selftests \"test_progs:\nuprobe_autoattach, attach_probe\" on the Spacemit K1/X60, where the\nuprobes tests randomly blew up.",
  "id": "GHSA-jc2j-hqm3-7764",
  "modified": "2025-05-08T09:30:25Z",
  "published": "2025-05-08T09:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37822"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1dbb95a36499374c51b47ee8ae258a8862c20978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d1d19a11cfbfd8bae1d89cc010b2cc397cd0c48"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcf6d3158c5902d92b6d62335af4422b7bf7c4e2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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