CVEvulnerability

CVE-2023-53356

5.5 MEDIUM Published 2025-09-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2025-09-17
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
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
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: gadget: u_serial: Add null pointer check in gserial_suspend Consider a case where gserial_disconnect has already cleared gser->ioport. And if gserial_suspend gets called afterwards, it will lead to accessing of gser->ioport and thus causing null pointer dereference. Avoid this by adding a null pointer check. Added a static spinlock to prevent gser->ioport from becoming null after the newly added null pointer check.

Affected configurations

• linux linux kernel (>= 5.8 < 5.10.188) • linux linux kernel (>= 5.11 < 5.15.121) • linux linux kernel (>= 5.16 < 6.1.39) • linux linux kernel (>= 6.2 < 6.4.4)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References