CVE-2023-53643
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedOct 7, 2025
First seenOct 7, 2025
How to fix
Update
- linux linux_kernel6.1.18, 6.2.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.1 ≤ v < 6.1.18, 6.2 ≤ v < 6.2.5 | 6.1.18, 6.2.5 |
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