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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

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
First Time		Linux linux Kernel Linux
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
CPE		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::

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

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