CVE-2023-52760

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in gfs2_qd_dealloc In gfs2_put_super(), whether withdrawn or not, the quota should be cleaned up by gfs2_quota_cleanup(). Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu callback) has run for all gfs2_quota_data objects, resulting in use-after-free. Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called by gfs2_make_fs_ro(), so in gfs2_put_super(), after calling gfs2_make_fs_ro(), there is no need to call them again.

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/08a28272faa750d4357ea2cb48d2baefd778ea81	Patch
https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba	Patch
https://git.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37	Patch
https://git.kernel.org/stable/c/08a28272faa750d4357ea2cb48d2baefd778ea81	Patch
https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba	Patch
https://git.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

22 Jan 2025, 18:03

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba -~~	() https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba - Patch

Information

Published : 2024-05-21 16:15

Updated : 2025-01-22 18:03

NVD link : CVE-2023-52760

Mitre link : CVE-2023-52760

CVE.ORG link : CVE-2023-52760

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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