CVE-2023-52983

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bic_set_bfqq() After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"), bic->bfqq will be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/511c922c5bf6c8a166bea826e702336bc2424140	Patch
https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5	Patch
https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2	Patch
https://git.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e	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:6.0.16:::::::*

History

No history.

Information

Published : 2025-03-27 17:15

Updated : 2025-04-01 15:39

NVD link : CVE-2023-52983

Mitre link : CVE-2023-52983

CVE.ORG link : CVE-2023-52983

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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