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VULNERABILITIES

CVE-2021-47048 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a kernel.orgPatch
https://git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c kernel.orgPatch
https://git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58 kernel.orgPatch
https://git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62 kernel.orgPatch
https://git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a CVEPatch

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

ProductVersions
linux linux kernel
>= 5.10, < 5.10.37
>= 5.11, < 5.11.21
>= 5.12, < 5.12.4

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-47048
NVD Published Date:
Feb 28, 2024
NVD Last Modified:
Aug 4, 2026
Source:
kernel.org
CVE-2021-47048 Details - Not Deferred