An issue was discovered in the Linux kernel before 5.2 on the powerpc platform.
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
An issue was discovered in the Linux kernel before 5.2 on the powerpc platform. arch/powerpc/kernel/idle_book3s.S does not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd.
Why it matters now
EPSS 0.00496 42nd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2021:1379 Released 2021-04-27 · Red Hat rating Importantkernel-alt security and bug fix update
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.36.1.el7a, kernel-alt-4.14.0-115.36.1.el7a, kernel-bootwrapper-4.14.0-115.36.1.el7a +6
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.36.1.el7a, kernel-tools-libs-devel-4.14.0-115.36.1.el7a
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2021:1379 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2021:1379 |
Not affected: 6 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
- Red Hat Enterprise MRG 2
Timeline
- 2026-10-02 Threatist record created from CVE-2020-11669
- 2026-10-03 Alias added: GHSA-j84w-6r3r-7jvc
References
Patch 7
- https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208663.html
- https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208660.html
- https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-April/208661.html
- https://github.com/torvalds/linux/commit/53a712bae5dd919521a58d7bad773b949358add0
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=53a712bae5dd919521a58d7bad773b949358add0
- openSUSE-SU-2020:0543
- https://security.netapp.com/advisory/ntap-20200430-0001/
Sources
- CVE-2020-11669 · CVE Program
- CVE-2020-11669 · NVD
- FIRST EPSS
- GHSA-j84w-6r3r-7jvc · GitHub Advisory Database · CC BY 4.0
- CVE-2020-11669 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences