CVE-2023-53643 (GCVE-0-2023-53643)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-10-15 21:41
VLAI
Title
nvme-tcp: don't access released socket during error recovery
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:36 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7064 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 02c57a82c0081141abc19150beab48ef47f97f18 , < fe2d9e54165dadaa0d0cc3355c0be9c3e129fa0d (git)
Affected: 02c57a82c0081141abc19150beab48ef47f97f18 , < d82f762db4776fa11de88018f0f5de2d5db72a72 (git)
Affected: 02c57a82c0081141abc19150beab48ef47f97f18 , < 76d54bf20cdcc1ed7569a89885e09636e9a8d71d (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.18 , ≤ 6.1.* (semver)
Unaffected: 6.2.5 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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}



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