CVE-2023-53049
usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: usb: ucsi: Fix NULL pointer deref in ucsi_connector_change() When ucsi_init() fails, ucsi->connector is NULL, yet in case of ucsi_acpi we may still get events which cause the ucs_acpi code to call ucsi_connector_change(), which then derefs the NULL ucsi->connector pointer. Fix this by not setting ucsi->ntfy inside ucsi_init() until ucsi_init() has succeeded, so that ucsi_connector_change() ignores the events because UCSI_ENABLE_NTFY_CONNECTOR_CHANGE is not set in the ntfy mask.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 2, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 7dd27aed9c456670b3882877ef17a48195f21693 bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 1c5abcb13491da8c049f20462189c12c753ba978 bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < 7ef0423e43f877a328454059d46763043ce3da44 bdc62f2bae8fb0e8e99574de5232f0a3c54a27df < f87fb985452ab2083967103ac00bfd68fb182764
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0 git.kernel.org: https://git.kernel.org/stable/c/7dd27aed9c456670b3882877ef17a48195f21693 git.kernel.org: https://git.kernel.org/stable/c/1c5abcb13491da8c049f20462189c12c753ba978 git.kernel.org: https://git.kernel.org/stable/c/7ef0423e43f877a328454059d46763043ce3da44 git.kernel.org: https://git.kernel.org/stable/c/f87fb985452ab2083967103ac00bfd68fb182764