CVE-2026-31544
MEDIUM EPSS 2.2%
Published Apr 24, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix NULL dereference on notify error path Since commit b5daf93b809d1 ("firmware: arm_scmi: Avoid notifier registration for unsupported events") the call chains leading to the helper __scmi_event_handler_get_ops expect an ERR_PTR to be returned on failure to get an handler for the requested event key, while the current helper can still return a NULL when no handler could be found or created. Fix by forcing an ERR_PTR return value when the handler reference is NULL.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-476 NULL Pointer Dereference Memory Safety
Affected Products 7
References 3
- git.kernel.org https://git.kernel.org/stable/c/555317d6100164748f7d09f80142739bd29f0cda
- git.kernel.org https://git.kernel.org/stable/c/70d9bd9a2e683afe6200b0c20af22f06f1a199a4
- git.kernel.org https://git.kernel.org/stable/c/8414d2800c34528467df23ce6192c254a73e4459
Remediation
- git.kernel.org https://git.kernel.org/stable/c/555317d6100164748f7d09f80142739bd29f0cda
- git.kernel.org https://git.kernel.org/stable/c/70d9bd9a2e683afe6200b0c20af22f06f1a199a4
- git.kernel.org https://git.kernel.org/stable/c/8414d2800c34528467df23ce6192c254a73e4459