i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue (Linux Linux)

CVE-2026-43352
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.16 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 377e75da122ffce7cec551f43fa884d57f2f8e63 ; affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 04b2853fdbb2ec9d03ece45da3c830396647120f ; affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 55a0b47a372245f7667e0a4ba5c6f2a4c7a889a6 ; affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 003df94bcc9227e8e930abd03ac7f63ac10033dc ; affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 5549611888f5ca2db5e8e692b57f30626ddf9898 ; affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 < b795e68bf3073d67bebbb5a44d93f49efc5b8cc7
Linux · Linuxaffected 5.11 ; unaffected 0 < 5.11 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.19 ≤ 6.18.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD