CVE-2026-43149

MEDIUM

net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (19)
Linux/Linux < 4.8
Linux/Linux 4.8
Linux/Linux 5.10.252 - 5.10.*
Linux/Linux 5.15.202 - 5.15.*
Linux/Linux 6.1.165 - 6.1.*
Linux/Linux 6.12.75 - 6.12.*
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 6.6.128 - 6.6.*
Linux/Linux 7.0
... and 9 more
Published May 06, 2026
Tracked Since May 06, 2026