CVE-2026-31544

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://git.kernel.org/stable/c/70d9bd9a2e683afe6200b0c20af22f06f1a199a4 ↗
• https://git.kernel.org/stable/c/8414d2800c34528467df23ce6192c254a73e4459 ↗
• https://git.kernel.org/stable/c/555317d6100164748f7d09f80142739bd29f0cda ↗