CVE-2023-53479

In the Linux kernel, the following vulnerability has been resolved: cxl/acpi: Fix a use-after-free in cxl_parse_cfmws() KASAN and KFENCE detected an user-after-free in the CXL driver. This happens in the cxl_decoder_add() fail path. KASAN prints the following error: BUG: KASAN: slab-use-after-free in cxl_parse_cfmws (drivers/cxl/acpi.c:299) This happens in cxl_parse_cfmws(), where put_device() is called, releasing cxld, which is accessed later. Use the local variables in the dev_err() instead of pointing to the released memory. Since the dev_err() is printing a resource, change the open coded print format to use the %pr format specifier.

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/316db489647b8ddc381682597e89787eac61a278	Patch
https://git.kernel.org/stable/c/4cf67d3cc9994a59cf77bb9c0ccf9007fe916afe	Patch
https://git.kernel.org/stable/c/748fadc08bcbdaf573b34d9784bb3dbd87441dbf	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:6.5:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.5:rc3::::::

History

No history.

Information

Published : 2025-10-01 12:15

Updated : 2026-01-20 16:37

NVD link : CVE-2023-53479

Mitre link : CVE-2023-53479

CVE.ORG link : CVE-2023-53479

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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