CVE-2023-53551

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_resume Consider a case where gserial_disconnect has already cleared gser->ioport. And if a wakeup interrupt triggers afterwards, gserial_resume gets called, which will lead to accessing of gser->ioport and thus causing null pointer dereference.Add a null pointer check to prevent this. Added a static spinlock to prevent gser->ioport from becoming null after the newly added check.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5	Patch
https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377	Patch
https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5	Patch
https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897	Patch
https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-10-04 16:15

Updated : 2026-03-21 00:33

NVD link : CVE-2023-53551

Mitre link : CVE-2023-53551

CVE.ORG link : CVE-2023-53551

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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