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->flags, null-ptr-deref<br />
<br />
Check the ret value and return -ENOMEM if it is NULL.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
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) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/3505c187b86136250b39e62c72a3a70435277af6
- https://git.kernel.org/stable/c/41f563ab3c33698bdfc3403c7c2e6c94e73681e4
- https://git.kernel.org/stable/c/5e4500454d75dd249be4695d83afa3ba0724c37e
- https://git.kernel.org/stable/c/67c98fec87ed76b1feb2ae810051afd88dfa9df6
- https://git.kernel.org/stable/c/77f8b628affaec692d83ad8bfa3520db8a0cc493
- https://git.kernel.org/stable/c/ac838c663ba1fd6bff35a817fd89a47ab55e88e0
- https://git.kernel.org/stable/c/c6db0c32f39684c89c97bc1ba1c9c4249ca09e48
- https://git.kernel.org/stable/c/fc307b2905a3dd75c50a53b4d87ac9c912fb7c4e
- https://git.kernel.org/stable/c/fc6d0f65f22040c6cc8a5ce032bf90252629de50



