drm/amd/pm: bound pp_dpm_set_pp_table() memcpy
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 3 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00185 8th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.189, 6.6.158, 6.12.111 +2Red Hat: 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97427
- 2026-10-03 Alias added: GHSA-797r-35j2-ppqg
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@9b5cb2e4eb297fe52be26fd895fc5ea28fc22bf9 +1 · CNA
- 2026-10-03 2 new references · CNA
- 2026-10-09 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/abe61d067b48b947bedc9bae3725cb8f48dc8c0a
- https://git.kernel.org/stable/c/9b5cb2e4eb297fe52be26fd895fc5ea28fc22bf9
- https://git.kernel.org/stable/c/43d2ab8408f9f468b232350c74160ae21e763020
- https://git.kernel.org/stable/c/3334985f8b4c7c637a829744c81518ad9a671bcb
- https://git.kernel.org/stable/c/f193e71fa9fab2e68ef85201b106e8f580d3a25b
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Sources
- CVE-2026-97427 · CVE Program
- CVE-2026-97427 · NVD
- FIRST EPSS
- GHSA-797r-35j2-ppqg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97427 · Red Hat security data · CC BY 4.0
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