PT-2025-49731

CVE-2023-53840

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Published

2023-01-01

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Updated

2026-10-19

Description by

CVSS 3.1
7.8
High
MetricsAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel related to out-of-bound memory access within the xhci-dbc driver. Specifically, if the xdbc bulk write() function fails, the buffer used by the xdbc trace() function may not be properly NULL-terminated, potentially leading to memory access issues. The issue is addressed by reserving an extra byte in the buffer, which is automatically zeroed, preventing potential problems.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Vendors
Affected products
Weakness enumeration
Related identifiers
CLSA-2026-1791132991
OESA-2026-1341
SUSE-SU-2026:0263-1
SUSE-SU-2026:0316-1
SUSE-SU-2026:0317-1
SUSE-SU-2026:0411-1
SUSE-SU-2026:0617-1
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