Linux Kernel 0-Day “Copy Fail”

Heloise Meyer | May 4, 2026, 1:11 p.m.

Further information on the Linux Kernel 0-Day “Copy Fail” (CVE-2026-31431)

Linux Kernel 0-Day “Copy Fail” Affects Distros Since 2017 [Lucas Martin, Cyber Press]

CISA Adds Actively Exploited Linux Root Access Bug CVE-2026-31431 to KEV [Ravie Lakshmanan, The Hacker News]

CVE-2026-31431 Detail [NIST, NIST]

CVE-2026-31431 Mitigation [HPC Public Documentation, HPC Public Documentation]