EUVD-2026-26513

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has many POSIX ACL entries, the accumulated size can wrap past 65535, causin...

CVE-2026-31704

CVE-2026-31704 affects the Linux kernel’s ksmbd ACL handling. The vulnerability arises when accumulating ACL entry sizes uses 16-bit counters (u16) in set_posix_acl_entries_dacl() and set_ntacl_dacl(), allowing wraparound past 65535 and causing pointer arithmetic on pndace to land within already-...

PT-2026-36334

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the functions set posix acl entries dacl and set ntacl dacl accumulate Access Control Entry ACE sizes using u16 variables. When a file contains numerous POSIX ACL...