CVE-2026-93132 ACPI: RISC-V: Fix riscv_acpi_add_prt_dep() loop handling
A loop handling error in the Linux kernel's RISC-V ACPI code can lead to incorrect entry processing, potentially causing system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93132?
CVE-2026-93132 is a vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ACPI: RISC-V: Fix riscv_acpi_add_prt_dep() loop handling
The loop in riscv_acpi_add_prt_dep() includes error conditions that are handled in a dubious - if not outright wrong - way, by continuining the loop (which skips and misses the entry pointer update to point to the next entry).
Rewrite the loop as a for loop (that handles the continuation correctly) and wrap the condition and update statements using helper functions to make it cleaner.
Which versions are affected by CVE-2026-93132?
How do I fix CVE-2026-93132?
Apply the vendor's patch.
Is CVE-2026-93132 being exploited?
There is no known exploitation of CVE-2026-93132 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-93132, DEBIAN-CVE-2026-93132, GHSA-w98f-qgf3-22gf, UBUNTU-CVE-2026-93132.