CVE-2021-47047
kernel: spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 28, 2024
Updated · June 27, 2026
Description
A flaw was found in the Xilinx ZynqMP GQSPI controller module in the Linux kernel. A crash can occur when a DMA operation is based on an invalid address due to a missing report of an error condition and an unchecked return value, resulting in a denial of service.
Statement
The Xilinx ZynqMP GQSPI controller module is not built in the kernel shipped in Red Hat Enterprise Linux 8 and 9, so it is not affected by this vulnerability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
CWE-252 · Unchecked Return Value