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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-27435 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: nvme: fix reconnection fail due to reserved tag allocation We found a issue on production environment while using NVMe over RDMA, admin_q reconnect failed forever while remote target and network is ok. After dig into it, we found it may caused by a ABBA deadlock due to tag allocation. In my case, the tag was hold by a keep alive request waiting inside admin_q, as we quiesced admin_q while reset ctrl, so the request maked as idle and will not process before reset success. As fabric_q shares tagset with admin_q, while reconnect remote target, we need a tag for connect command, but the only one reserved tag was held by keep alive command which waiting inside admin_q. As a result, we failed to reconnect admin_q forever. In order to fix this issue, I think we should keep two reserved tags for admin queue.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/262da920896e2f2ab0e3947d9dbee0aa09045818 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/6851778504cdb49431809b4ba061903d5f592c96 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/de105068fead55ed5c07ade75e9c8e7f86a00d1d CVE, kernel.org Patch 
https://git.kernel.org/stable/c/ff2f90f88d78559802466ad1c84ac5bda4416b3a CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-27435
NVD Published Date:
05/17/2024
NVD Last Modified:
09/26/2025
Source:
kernel.org