CVE-2026-90348
kernel: wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 14, 2026
Description
A flaw was found in the Linux kernel's ath10k snoc wireless driver. When collecting a firmware crash dump on arm64 systems, the ath10k_msa_dump_memory() function uses memcpy() to copy data from a memory region that does not permit unaligned accesses. This unaligned memory access triggers a kernel crash, leading to a Denial of Service (DoS) and preventing the capture of important firmware debugging information.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')