Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-53351
Published: July 2, 2026
Vulnerability identifier: #VU136694
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2026-53351
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper handling of core dump note types in riscv ptrace REGSET_CFI support when dumping a core file. A local user can trigger a core dump to cause a denial of service.
The issue is evidenced by a kernel warning in elf_core_dump on RISC-V systems.
How to mitigate CVE-2026-53351
Install security update from vendor's repository.