CVE-2022-50382

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/17afa98bccec4f52203508b3f49b5f948c6fd6ac	Patch
https://git.kernel.org/stable/c/34c3a47d20ae55b3600fed733bf96eafe9c500d5	Patch
https://git.kernel.org/stable/c/6cfa9e60c0f88fdec6368e081ab968411cc706b1	Patch
https://git.kernel.org/stable/c/7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d	Patch
https://git.kernel.org/stable/c/8e0681dd4eee029eb1d533d06993f7cb091efb73	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-09-18 14:15

Updated : 2026-01-14 19:16

NVD link : CVE-2022-50382

Mitre link : CVE-2022-50382

CVE.ORG link : CVE-2022-50382

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-667

Improper Locking

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