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.
References
Configurations
Configuration 1 (hide)
|
History
11 Dec 2025, 18:18
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/17afa98bccec4f52203508b3f49b5f948c6fd6ac - Patch | |
| References | () https://git.kernel.org/stable/c/34c3a47d20ae55b3600fed733bf96eafe9c500d5 - Patch | |
| References | () https://git.kernel.org/stable/c/6cfa9e60c0f88fdec6368e081ab968411cc706b1 - Patch | |
| References | () https://git.kernel.org/stable/c/7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d - Patch | |
| References | () https://git.kernel.org/stable/c/8e0681dd4eee029eb1d533d06993f7cb091efb73 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-667 | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
18 Sep 2025, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-09-18 14:15
Updated : 2025-12-11 18:18
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