CVE-2026-97427

drm/amd/pm: bound pp_dpm_set_pp_table() memcpy

N/A
Published: September 24, 2026 at 04:03 PM UTC
Updated: October 3, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: bound pp_dpm_set_pp_table() memcpy The powerplay path allocates hardcode_pp_table once with kmemdup(..., soft_pp_table_size). memcpy(..., size) used the sysfs store count (up to PAGE_SIZE) with no upper bound, causing heap overflow. Reject writes where size exceeds soft_pp_table_size.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.6 ≤ v < 6.1.1894.6 ≤ v < 6.12.1114.6 ≤ v < 6.18.534.6 ≤ v < 6.6.1584.6 ≤ v < 7.24.6b9c1a77e8cd73aa42c2736b6b0ffddda6230af1a
Vendor states this is fixed in 3334985f8b4c7c637a829744c81518ad9a671bcb (fixed)
Vendor states this is fixed in 43d2ab8408f9f468b232350c74160ae21e763020 (fixed)
Vendor states this is fixed in 9b5cb2e4eb297fe52be26fd895fc5ea28fc22bf9 (fixed)
Vendor states this is fixed in abe61d067b48b947bedc9bae3725cb8f48dc8c0a (fixed)
Vendor states this is fixed in f193e71fa9fab2e68ef85201b106e8f580d3a25b (fixed)
Vendor states this is fixed in 4.6 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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