AZL-109334
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109334.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-109334
- Upstream
- Published
- 2026-10-18T16:17:31Z
- Modified
- 2026-10-19T14:17:05Z
- Summary
- CVE-2026-98779 affecting package kernel 6.6.157.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix ACP MFD device leak on init failure
acp_hw_init() registers ACP child devices with mfd_add_devices() before attaching them to the ACP power domain and initializing the hardware.
If attaching a child to the power domain fails, or if the ACP reset or clock enable operation times out, the failure path frees only the source cell, resource, and platform-data allocations. The child platform devices already registered by mfd_add_devices() remain registered and are never released.
Remove the children from the power domain and unregister the MFD devices on failures that occur after mfd_add_devices() succeeds. Keep mfd_add_devices() failures on the existing cleanup path since the MFD core already rolls back partially registered children itself.
The issue was identified by a static analysis tool I developed and confirmed by manual review.
(cherry picked from commit 63da68d6a2279ec945581c990c5a59a5ae8b5560)
- References