Out-of-bounds read in Linux kernel - CVE-2026-80748
Published: September 4, 2026
Vulnerability identifier: #VU146916
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80748
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause an out-of-bounds memory access.
The vulnerability exists due to improper scatterlist iteration in the ls2k0500_mmc_reorder_cmd_data() and ls2k2000_mmc_reorder_cmd_data() functions when processing scatterlist entries during command-data reordering. A local user can trigger command-data reordering to cause an out-of-bounds memory access.
Affected software
Linux kernel
How to mitigate CVE-2026-80748
Install security update from vendor's repository.