CVE-2023-53643

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: don't access released socket during error recovery While the error recovery work is temporarily failing reconnect attempts, running the 'nvme list' command causes a kernel NULL pointer dereference by calling getsockname() with a released socket. During error recovery work, the nvme tcp socket is released and a new one created, so it is not safe to access the socket without proper check.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/76d54bf20cdcc1ed7569a89885e09636e9a8d71d	Patch
https://git.kernel.org/stable/c/d82f762db4776fa11de88018f0f5de2d5db72a72	Patch
https://git.kernel.org/stable/c/fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d	Patch

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2025-10-07 16:15

Updated : 2026-08-04 10:19

NVD link : CVE-2023-53643

Mitre link : CVE-2023-53643

CVE.ORG link : CVE-2023-53643

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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