CVE-2026-23218
gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc()
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc() Fix incorrect NULL check in loongson_gpio_init_irqchip(). The function checks chip->parent instead of chip->irq.parents.
INFO
Published Date :
Feb. 18, 2026, 3:18 p.m.
Last Modified :
March 18, 2026, 5:31 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] |
Solution
- Update the Linux kernel to the patched version.
- Review loongson_gpio_init_irqchip() function logic.
- Ensure correct pointer checks are implemented.
- Test the fix for the NULL pointer issue.
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-2026-23218.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/e34f77b09080c86c929153e2a72da26b4f8947ff | Patch |
| https://git.kernel.org/stable/c/e71e3fa90a15134113f61343392e887cd1f4bf7c | Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23218 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-2026-23218
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-2026-23218 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23218 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.
-
Initial Analysis by [email protected]
Mar. 18, 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 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.18 up to (excluding) 6.18.10 Added Reference Type kernel.org: https://git.kernel.org/stable/c/e34f77b09080c86c929153e2a72da26b4f8947ff Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e71e3fa90a15134113f61343392e887cd1f4bf7c Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 18, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: gpio: loongson-64bit: Fix incorrect NULL check after devm_kcalloc() Fix incorrect NULL check in loongson_gpio_init_irqchip(). The function checks chip->parent instead of chip->irq.parents. Added Reference https://git.kernel.org/stable/c/e34f77b09080c86c929153e2a72da26b4f8947ff Added Reference https://git.kernel.org/stable/c/e71e3fa90a15134113f61343392e887cd1f4bf7c