SB2026050876 - Double free in Linux kernel spi driver
Published: May 8, 2026
Security Bulletin ID
SB2026050876
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Double free (CVE-ID: CVE-2026-43461)
CWE-ID: CWE-415 - Double Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a double unmap in aml_sfc_dma_buffer_setup() in the amlogic spifc-a4 driver when handling DMA mapping errors. A local user can trigger the vulnerable error path to cause a denial of service.
The issue occurs in kernel error-handling paths for DMA buffer setup.
Remediation
Install update from vendor's website.