CVE-2025-68173 (GCVE-0-2025-68173)
Vulnerability from cvelistv5
Published
2025-12-16 13:42
Modified
2025-12-16 13:42
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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          "programFiles": [
            "kernel/trace/ftrace.c"
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          "vendor": "Linux",
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              "versionType": "semver"
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      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:42:53.106Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71"
        },
        {
          "url": "https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001"
        },
        {
          "url": "https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3"
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      ],
      "title": "ftrace: Fix softlockup in ftrace_module_enable",
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68173",
    "datePublished": "2025-12-16T13:42:53.106Z",
    "dateReserved": "2025-12-16T13:41:40.251Z",
    "dateUpdated": "2025-12-16T13:42:53.106Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68173\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-16T14:15:49.213\",\"lastModified\":\"2025-12-18T15:08:25.907\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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