ghsa-6j5g-jv8m-99rc
Vulnerability from github
Published
2025-12-16 15:30
Modified
2025-12-16 15:30
Details

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

ftrace: Fix softlockup in ftrace_module_enable

A soft lockup was observed when loading amdgpu module. If a module has a lot of tracable functions, multiple calls to kallsyms_lookup can spend too much time in RCU critical section and with disabled preemption, causing kernel panic. This is the same issue that was fixed in commit d0b24b4e91fc ("ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels") and commit 42ea22e754ba ("ftrace: Add cond_resched() to ftrace_graph_set_hash()").

Fix it the same way by adding cond_resched() in ftrace_module_enable.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68173"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:49Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix softlockup in ftrace_module_enable\n\nA soft lockup was observed when loading amdgpu module.\nIf a module has a lot of tracable functions, multiple calls\nto kallsyms_lookup can spend too much time in RCU critical\nsection and with disabled preemption, causing kernel panic.\nThis is the same issue that was fixed in\ncommit d0b24b4e91fc (\"ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY\nkernels\") and commit 42ea22e754ba (\"ftrace: Add cond_resched() to\nftrace_graph_set_hash()\").\n\nFix it the same way by adding cond_resched() in ftrace_module_enable.",
  "id": "GHSA-6j5g-jv8m-99rc",
  "modified": "2025-12-16T15:30:44Z",
  "published": "2025-12-16T15:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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