CVE-2023-53356

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.

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/2788a3553f7497075653210b42e2aeb6ba95e28e	Patch
https://git.kernel.org/stable/c/2f6ecb89fe8feb2b60a53325b0eeb9866d88909a	Patch
https://git.kernel.org/stable/c/374447e3367767156405bedd230c5d391f4b7962	Patch
https://git.kernel.org/stable/c/a8ea7ed644cbf6314b5b0136b5398754b549fb8f	Patch
https://git.kernel.org/stable/c/e60a827ac074ce6bd58305fe5a86afab5fce6a04	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 : 2025-09-17 15:15

Updated : 2026-01-14 19:16

NVD link : CVE-2023-53356

Mitre link : CVE-2023-53356

CVE.ORG link : CVE-2023-53356

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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