CVE-2026-43352

Last refreshed2026-10-23

Status: UPDATED | Advisory ID: CVE-2026-43352

Key Details

CVE	CVE-2026-43352
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-21
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue

The logic used to abort the DMA ring contains several flaws:

1. The driver unconditionally issues a ring abort even when the ring has

already stopped.

2. The completion used to wait for abort completion is never

re-initialized, resulting in incorrect wait behavior.

3. The abort sequence unintentionally clears RING_CTRL_ENABLE, which

resets hardware ring pointers and disrupts the controller state.

4. If the ring is already stopped, the abort operation should be

considered successful without attempting further action.

Fix the abort handling by checking whether the ring is running before

issuing an abort, re-initializing the completion when needed, ensuring that

RING_CTRL_ENABLE remains asserted during abort, and treating an already

stopped ring as a successful condition. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-43352
CVE	https://www.cve.org/CVERecord?id=CVE-2026-43352

Source

Reference

NVD

CVE