{"cve":"CVE-2022-50382","nvd":{"published":"2025-09-18T14:15:36.993","modified":"2026-06-17T05:23:23.567","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npadata: Always leave BHs disabled when running ->parallel()\n\nA deadlock can happen when an overloaded system runs ->parallel() in the\ncontext of the current task:\n\n    padata_do_parallel\n      ->parallel()\n        pcrypt_aead_enc/dec\n          padata_do_serial\n            spin_lock(&reorder->lock) // BHs still enabled\n              <interrupt>\n                ...\n                  __do_softirq\n                    ...\n                      padata_do_serial\n                        spin_lock(&reorder->lock)\n\nIt's a bug for BHs to be on in _do_serial as Steffen points out, so\nensure they're off in the \"current task\" case like they are in\npadata_parallel_worker to avoid this situation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-667"],"references":["https://git.kernel.org/stable/c/17afa98bccec4f52203508b3f49b5f948c6fd6ac","https://git.kernel.org/stable/c/34c3a47d20ae55b3600fed733bf96eafe9c500d5","https://git.kernel.org/stable/c/6cfa9e60c0f88fdec6368e081ab968411cc706b1","https://git.kernel.org/stable/c/7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d","https://git.kernel.org/stable/c/8e0681dd4eee029eb1d533d06993f7cb091efb73"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2022-50382","score":0.00121,"percentile":0.01853,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}