CVE-2021-47048

In the Linux kernel, the following vulnerability has been resolved: spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op When handling op->addr, it is using the buffer "tmpbuf" which has been freed. This will trigger a use-after-free KASAN warning. Let's use temporary variables to store op->addr.val and op->cmd.opcode to fix this issue.

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/1231279389b5e638bc3b66b9741c94077aed4b5a	Patch
https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c	Patch
https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58	Patch
https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62	Patch
https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a	Patch
https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c	Patch
https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58	Patch
https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62	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::::::::

History

No history.

Information

Published : 2024-02-28 09:15

Updated : 2024-12-09 19:05

NVD link : CVE-2021-47048

Mitre link : CVE-2021-47048

CVE.ORG link : CVE-2021-47048

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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