Ubuntu Linux Kernel Multiple Vulnerabilities

Multiple vulnerabilities were identified in Ubuntu Linux Kernel. A remote attacker could exploit some of these vulnerabilities to trigger denial of service condition, elevation of privilege, security restriction bypass, remote code execution and data manipulation on the targeted system.

Note: 

CVE-2026-31431 is being exploited in the wild. Copy Fail (CVE-2026-31431) is a logic bug in the Linux kernel's authencesn cryptographic template. It lets an unprivileged local user trigger a deterministic, controlled 4-byte write into the page cache of any readable file on the system. A single 732-byte Python script can edit a setuid binary and obtain root on essentially all Linux distributions shipped since 2017.

[Updated on 2026-06-03]

Updated Description, System / Technologies affected, Solutions, Vulnerability Identifier and Related Links.

[Updated on 2026-06-09]

Updated System / Technologies affected, Solutions, Vulnerability Identifier and Related Links.

[Updated on 2026-06-12]

Updated Solutions, Vulnerability Identifier and Related Links.

[Updated on 2026-06-22]

Updated Impact, Description, Solutions, Vulnerability Identifier and Related Links.