CVE-2023-53840

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Source

https://cve.org/CVERecord?id=CVE-2023-53840

Import Source

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2023-53840

Downstream

Related

Published

2025-12-09T01:29:56.848Z

Modified

2026-03-20T12:33:22.436119Z

Summary

usb: early: xhci-dbc: Fix a potential out-of-bound memory access

Details

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

usb: early: xhci-dbc: Fix a potential out-of-bound memory access

If xdbcbulkwrite() fails, the values in 'buf' can be anything. So the string is not guaranteed to be NULL terminated when xdbc_trace() is called.

Reserve an extra byte, which will be zeroed automatically because 'buf' is a static variable, in order to avoid troubles, should it happen.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53840.json",
    "cna_assigner": "Linux"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0

Fixed

e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0

Fixed

351c8d8650d1ccc006255fa01f98b6c6496a02e5

Fixed

df7c8aba7309f4dc55df94e06b67f576c0f52406

Fixed

a4a97ab3db5c081eb6e7dba91306adefb461e0bd

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53840.json"

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53840.json"