EUVD-2026-25437
GHSA-fc2q-2cf4-p9xr
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
7DescriptionNVD
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.
AnalysisAI
A NULL pointer dereference in the Linux kernel ARM SCMI firmware driver allows local authenticated users to trigger a denial of service by causing the system to crash. The vulnerability exists in the __scmi_event_handler_get_ops helper function, which can return NULL instead of the expected ERR_PTR on failure, causing downstream code to dereference a NULL pointer when handling unsupported SCMI events. …
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