CVE-2023-52576

In the Linux kernel, the following vulnerability has been resolved: x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer() The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range(). With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic. Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b	Patch
https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204	Patch
https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b	Patch
https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b	Patch
https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204	Patch
https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b	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:6.6:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.6:rc2::::::

History

No history.

Information

Published : 2024-03-02 22:15

Updated : 2025-04-08 15:04

NVD link : CVE-2023-52576

Mitre link : CVE-2023-52576

CVE.ORG link : CVE-2023-52576

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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