Fiche vulnérabilité
CVE-2023-53049 : faille moyenne linux linux kernel (CVSS 5.5)
Description
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.
En bref
- Sévérité
- Moyenne (CVSS 5.5)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 2 mai 2025
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- linux linux kernel
Références
- Fiche CVE-2023-53049 sur le NVD (NIST)
- git.kernel.org/stable/c/1c5abcb13491da8c049f20462189c12c753ba…
- git.kernel.org/stable/c/7dd27aed9c456670b3882877ef17a48195f21…
- git.kernel.org/stable/c/7ef0423e43f877a328454059d46763043ce3d…
- git.kernel.org/stable/c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f…
- git.kernel.org/stable/c/f87fb985452ab2083967103ac00bfd68fb182…