CVE-2026-43353

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-05-08 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself. When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes incomplete transfers, and then restarts the ring. If another timeout triggers a parallel call into the same function, the two instances may interfere with each other - stopping or restarting the ring at unexpected times. Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to itself.

Weakness Classification (1)

Affected Software (11)

VendorProductVersion
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < d2fa9b855c7b42b34b2fb32731bf533952370384
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 73bb6b15f1fd71479ed12b314876f3ce5935b80a
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 16061383a9def977e4be908c7dcede9a8a4227fd
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 4faa1e9c67a2229f6749190aedaf88ce0391efd2
Linux Linux 9ad9a52cce2828d932ae9495181e3d6414f72c07 < 1dca8aee80eea76d2aae21265de5dd64f6ba0f09
Linux Linux 5.11
linux linux_kernel 5.11 – 6.18.19
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.13%
Raw Score 0.001260
Percentile 2.3%
Date 2026-10-30

EPSS Trend

2026-10-30
0.00126
2026-10-29
0.00126

Intelligence Sources

mitre ref →
nvd ref →