CVE-2022-50382 — Improper Locking in Linux

CWE-667 — Improper LockingCWE-833 — Deadlock5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

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 ... __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 of…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel5.8 — 5.10.163+3
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linux4611ce22468895acd61fee9ac1da810d60617d9a — 8e0681dd4eee029eb1d533d06993f7cb091efb73+5
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-hffq-87g8-8r3x: In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happe↗2025-09-18
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OSV
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↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: padata: Always leave BHs disabled when running ->parallel()↗2025-09-18
▶
Debian
CVE-2022-50382: linux - In the Linux kernel, the following vulnerability has been resolved: padata: Alw...↗2022
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CVE-2022-50382 — Improper Locking in Linux | cvebase