CVE-2022-50382 (GCVE-0-2022-50382)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2025-09-18 13:33
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen when an overloaded system runs ->parallel() in the context of the current task: padata_do_parallel ->parallel() pcrypt_aead_enc/dec padata_do_serial spin_lock(&reorder->lock) // BHs still enabled <interrupt> ... __do_softirq ... padata_do_serial spin_lock(&reorder->lock) It's a bug for BHs to be on in _do_serial as Steffen points out, so ensure they're off in the "current task" case like they are in padata_parallel_worker to avoid this situation.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4611ce22468895acd61fee9ac1da810d60617d9a , < 8e0681dd4eee029eb1d533d06993f7cb091efb73 (git)
Affected: 4611ce22468895acd61fee9ac1da810d60617d9a , < 17afa98bccec4f52203508b3f49b5f948c6fd6ac (git)
Affected: 4611ce22468895acd61fee9ac1da810d60617d9a , < 7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d (git)
Affected: 4611ce22468895acd61fee9ac1da810d60617d9a , < 6cfa9e60c0f88fdec6368e081ab968411cc706b1 (git)
Affected: 4611ce22468895acd61fee9ac1da810d60617d9a , < 34c3a47d20ae55b3600fed733bf96eafe9c500d5 (git)
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    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npadata: Always leave BHs disabled when running -\u003eparallel()\n\nA deadlock can happen when an overloaded system runs -\u003eparallel() in the\ncontext of the current task:\n\n    padata_do_parallel\n      -\u003eparallel()\n        pcrypt_aead_enc/dec\n          padata_do_serial\n            spin_lock(\u0026reorder-\u003elock) // BHs still enabled\n              \u003cinterrupt\u003e\n                ...\n                  __do_softirq\n                    ...\n                      padata_do_serial\n                        spin_lock(\u0026reorder-\u003elock)\n\nIt\u0027s a bug for BHs to be on in _do_serial as Steffen points out, so\nensure they\u0027re off in the \"current task\" case like they are in\npadata_parallel_worker to avoid this situation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:04.193Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
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      ],
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50382",
    "datePublished": "2025-09-18T13:33:04.193Z",
    "dateReserved": "2025-09-17T14:53:06.996Z",
    "dateUpdated": "2025-09-18T13:33:04.193Z",
    "state": "PUBLISHED"
  },
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  }
}


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