CVE-2022-50415
parisc: led: Fix potential null-ptr-deref in start_task()
Description
In the Linux kernel, the following vulnerability has been resolved: parisc: led: Fix potential null-ptr-deref in start_task() start_task() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: start_task() create_singlethread_workqueue() # failed, led_wq is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL.
INFO
Published Date :
Sept. 18, 2025, 4:15 p.m.
Last Modified :
Jan. 14, 2026, 8:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Check the return value of create_singlethread_workqueue.
- Return -ENOMEM if the return value is NULL.
- Ensure workqueue creation success before use.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-50415.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50415 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50415
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-50415 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-50415 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 -
Initial Analysis by [email protected]
Dec. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.303 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.270 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.229 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.163 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.87 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1 up to (excluding) 6.1.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.0.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.15 up to (excluding) 4.9.337 Added Reference Type kernel.org: https://git.kernel.org/stable/c/3505c187b86136250b39e62c72a3a70435277af6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/41f563ab3c33698bdfc3403c7c2e6c94e73681e4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5e4500454d75dd249be4695d83afa3ba0724c37e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/67c98fec87ed76b1feb2ae810051afd88dfa9df6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/77f8b628affaec692d83ad8bfa3520db8a0cc493 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ac838c663ba1fd6bff35a817fd89a47ab55e88e0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c6db0c32f39684c89c97bc1ba1c9c4249ca09e48 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fc307b2905a3dd75c50a53b4d87ac9c912fb7c4e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fc6d0f65f22040c6cc8a5ce032bf90252629de50 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 18, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: parisc: led: Fix potential null-ptr-deref in start_task() start_task() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: start_task() create_singlethread_workqueue() # failed, led_wq is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. Added Reference https://git.kernel.org/stable/c/3505c187b86136250b39e62c72a3a70435277af6 Added Reference https://git.kernel.org/stable/c/41f563ab3c33698bdfc3403c7c2e6c94e73681e4 Added Reference https://git.kernel.org/stable/c/5e4500454d75dd249be4695d83afa3ba0724c37e Added Reference https://git.kernel.org/stable/c/67c98fec87ed76b1feb2ae810051afd88dfa9df6 Added Reference https://git.kernel.org/stable/c/77f8b628affaec692d83ad8bfa3520db8a0cc493 Added Reference https://git.kernel.org/stable/c/ac838c663ba1fd6bff35a817fd89a47ab55e88e0 Added Reference https://git.kernel.org/stable/c/c6db0c32f39684c89c97bc1ba1c9c4249ca09e48 Added Reference https://git.kernel.org/stable/c/fc307b2905a3dd75c50a53b4d87ac9c912fb7c4e Added Reference https://git.kernel.org/stable/c/fc6d0f65f22040c6cc8a5ce032bf90252629de50