CVE-2023-53840
usb: early: xhci-dbc: Fix a potential out-of-bound memory access
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: usb: early: xhci-dbc: Fix a potential out-of-bound memory access If xdbc_bulk_write() 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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 9, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 < e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0 aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 < 351c8d8650d1ccc006255fa01f98b6c6496a02e5 aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 < df7c8aba7309f4dc55df94e06b67f576c0f52406 aeb9dd1de98c1a5f2007ea5d2a154c1244caf8a0 < a4a97ab3db5c081eb6e7dba91306adefb461e0bd
Linux / Linux
4.12
References
git.kernel.org: https://git.kernel.org/stable/c/e8fb0f13e45cf361fd06593d3cb2d89915cd3bd0 git.kernel.org: https://git.kernel.org/stable/c/351c8d8650d1ccc006255fa01f98b6c6496a02e5 git.kernel.org: https://git.kernel.org/stable/c/df7c8aba7309f4dc55df94e06b67f576c0f52406 git.kernel.org: https://git.kernel.org/stable/c/a4a97ab3db5c081eb6e7dba91306adefb461e0bd