# CVE-2026-81016: linux: In the Linux kernel, the following vulnerability has been resolved:  platform/x86/amd/pmc: Propagate SMU errors and v...

CVE-2026-81016 is fixed in 37 products on 1 platform, first by DEBIAN-CVE-2026-81016, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-81016
- Priority: High
- CVSS: 7.7 (high)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 11, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  platform/x86/amd/pmc: Propagate SMU errors and validate S2D address  amd_stb_s2d_init() discards the return value of several S2D SMU commands. When the SMU refuses a command (e.g. "SMU cmd failed. err: 0xff") the failure is only noticed indirectly - if at all - and reported as -EIO, masking the real error.  More seriously, the S2D_PHYS_ADDR_LOW/HIGH return values are ignored, so on failure phys_addr_low/hi are left uninitialised and the assembled address is passed straight to devm_ioremap().  When the SMU leaves them at zero this maps physical address 0 and trips the ioremap-on-RAM warning:    amd_pmc AMDI000B:00: SMU cmd failed. err: 0xff   ioremap on RAM at 0x0000000000000000 - 0x0000000000ffffff   WARNING: CPU: 13 PID: 4592 at arch/x86/mm/ioremap.c:...  Check the return value of each SMU command and propagate it, and reject a zero physical address before calling devm_ioremap().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kernel-uek ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-devel ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-devel ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-deprecated ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-deprecated ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-desktop ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-desktop ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-extra ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-extra ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-extra-netfilter ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-extra-netfilter ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-usb ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-usb ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-wireless ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-debug-modules-wireless ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-devel ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-devel ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-doc ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-doc ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-deprecated ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-deprecated ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-desktop ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-desktop ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-extra ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-extra ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-extra-netfilter ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-extra-netfilter ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-usb ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-usb ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-wireless ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-modules-wireless ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-tools ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek-tools ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-devel ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-devel ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-core ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-core ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-deprecated ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-deprecated ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-desktop ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-desktop ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-extra ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-extra ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-extra-netfilter ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-extra-netfilter ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-usb ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-usb ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-wireless ol 10 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | kernel-uek64k-modules-wireless ol 9 | 0:6.12.0-208.112.5.el9uek | [ELSA-2026-500572](https://patchblox.com/security/data/fix/linux/elsa-2026-500572.md) | Nov 7, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.113-1 | [DEBIAN-CVE-2026-81016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-81016.md) | Sep 23, 2026 |
| Linux | linux Debian 14 | 7.2.6-1 | [DEBIAN-CVE-2026-81016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-81016.md) | Sep 23, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.113-1~deb12u1 | [DEBIAN-CVE-2026-81016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-81016.md) | Sep 23, 2026 |

---

Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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