CVEvulnerability

CVE-2023-53049

5.5 MEDIUM Published 2025-05-02 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-05-02
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 5.5 < 5.10.177) • linux linux kernel (>= 5.11 < 5.15.105) • linux linux kernel (>= 5.16 < 6.1.22) • linux linux kernel (>= 6.2 < 6.2.9) • linux linux kernel 6.3

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References