Riskcovery

CVE-2023-53643

nvme-tcp: don't access released socket during error recovery

State
Published
Severity
7.8 High
Published
Oct 7, 2025
Updated
Oct 15, 2026
Reserved
Oct 7, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 02c57a82c0081141abc19150beab48ef47f97f18 to before fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0dAffected
  • 02c57a82c0081141abc19150beab48ef47f97f18 to before d82f762db4776fa11de88018f0f5de2d5db72a72Affected
  • 02c57a82c0081141abc19150beab48ef47f97f18 to before 76d54bf20cdcc1ed7569a89885e09636e9a8d71dAffected
LinuxLinux
  • 6.1Affected
  • before 6.1Not affected
  • 6.1.18 through 6.1.*Not affected
  • 6.2.5 through 6.2.*Not affected
  • 6.3 and laterNot affected

References

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