CVE-2021-47048

2024-02-2809:15:40

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

spi

vulnerability

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.7%

JSON

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.

References

git.kernel.org/stable/c/1231279389b5e638bc3b66b9741c94077aed4b5a

git.kernel.org/stable/c/23269ac9f123eca3aea7682d3345c02e71ed696c

git.kernel.org/stable/c/a2c5bedb2d55dd27c642c7b9fb6886d7ad7bdb58

git.kernel.org/stable/c/d67e0d6bd92ebbb0294e7062bbf5cdc773764e62