CVE-2022-50415

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
18/09/2025
Last modified:
14/01/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> parisc: led: Fix potential null-ptr-deref in start_task()<br /> <br /> start_task() calls create_singlethread_workqueue() and not checked the<br /> ret value, which may return NULL. And a null-ptr-deref may happen:<br /> <br /> start_task()<br /> create_singlethread_workqueue() # failed, led_wq is NULL<br /> queue_delayed_work()<br /> queue_delayed_work_on()<br /> __queue_delayed_work() # warning here, but continue<br /> __queue_work() # access wq-&gt;flags, null-ptr-deref<br /> <br /> Check the ret value and return -ENOMEM if it is NULL.

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 2.6.15 (including) 4.9.337 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.10 (including) 4.14.303 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.15 (including) 4.19.270 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.229 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.163 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.87 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.0.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.1 (including) 6.1.4 (excluding)