GHSA-PCXF-938W-XXQ5

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33
VLAI
Details

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

LoongArch: Move jump_label_init() before parse_early_param()

When enabling both CONFIG_MEM_ALLOC_PROFILING=y and CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT=y, then diabling memory profiling by adding the boot parameter 'sysctl.vm.mem_profiling=0' will cause the kernel failed to boot.

After analysis, this is because jump_label_init() must be called before parse_early_param(), the early param handlers may modify static keys by static_branch_enable/disable().

Fix this by moving jump_label_init() to before parse_early_param(). The solution is similar to other architectures.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68185"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:05Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Move jump_label_init() before parse_early_param()\n\nWhen enabling both CONFIG_MEM_ALLOC_PROFILING=y and\nCONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT=y, then diabling memory\nprofiling by adding the boot parameter \u0027sysctl.vm.mem_profiling=0\u0027 will\ncause the kernel failed to boot.\n\nAfter analysis, this is because jump_label_init() must be called before\nparse_early_param(), the early param handlers may modify static keys by\nstatic_branch_enable/disable().\n\nFix this by moving jump_label_init() to before parse_early_param(). The\nsolution is similar to other architectures.",
  "id": "GHSA-pcxf-938w-xxq5",
  "modified": "2026-08-10T15:33:39Z",
  "published": "2026-08-10T15:33:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68185"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38b025fcdc45bdf5140a5726a1fbb2e694ea047b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b40e590efb350c54480d7e883f054d3609a94c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/881e9f3c4e117b100880b1c5de3a0da8e455a78f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea68d444a658783234a06f05414e41cf93a18fb2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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