CVE-2021-47378

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47378
In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: destroy cm id before destroy qp to avoid use after free We should always destroy cm_id before destroy qp to avoid to get cma event after qp was destroyed, which may lead to use after free. In RDMA connection establishment error flow, don't destroy qp in cm event handler.Just report cm_error to upper level, qp will be destroy in nvme_rdma_alloc_queue() after destroy cm id.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 Patch
https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 Patch
https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f Patch
https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 Patch
https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 Patch
https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
History

02 Apr 2025, 14:52

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 - () https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 - Patch
References () https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 - () https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 - Patch
References () https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f - () https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f - Patch
First Time Linux linux Kernel
Linux

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 - () https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 -
References () https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 - () https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 -
References () https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f - () https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f -

03 Jul 2024, 01:37

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-rdma: destruye cm id antes de destruir qp para evitar su use after free. Siempre debemos destruir cm_id antes de destruir qp para evitar que se produzca un evento cma después de que se destruya qp, lo que puede llevar a use after free. En el flujo de error de establecimiento de conexión RDMA, no destruya qp en el controlador de eventos cm. Simplemente informe cm_error al nivel superior, qp se destruirá en nvme_rdma_alloc_queue() después de destruir cm id.
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8

21 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 15:15

Updated : 2025-04-02 14:52

NVD link : CVE-2021-47378

Mitre link : CVE-2021-47378

CVE.ORG link : CVE-2021-47378

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free