CVE-2026-98779drm/amdgpu: fix ACP MFD device leak on init failure
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No exploitation reported and no EPSS estimate yet.
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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)
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | 25030321ba2860c56651429a4f28d94a6483d952 builds before 2b9a53940a2bc063ea4cd09ee49220a503a0170c; from 25030321ba2860c56651429a4f28d94a6483d952 before 587469076e4ffb617f7ad1a0c4a13072a3e87113; from 25030321ba2860c56651429a4f28d94a6483d952 before abf854513bc19e6e24d45353ac99ec5627ee0acc; from 25030321ba2860c56651429a4f28d94a6483d952 before f0013046151b7467e62c471c1c83d63ea255799c | CNA record |
References
- https://git.kernel.org/stable/c/2b9a53940a2bc063ea4cd09ee49220a503a0170c
- https://git.kernel.org/stable/c/587469076e4ffb617f7ad1a0c4a13072a3e87113
- https://git.kernel.org/stable/c/abf854513bc19e6e24d45353ac99ec5627ee0acc
- https://git.kernel.org/stable/c/f0013046151b7467e62c471c1c83d63ea255799c
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.