CVE-2026-99110 smb: client: fix heap overflow in cifs_do_set_acl()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in cifsdosetacl cifssetacl validates ACL size using posixaclxattrsize: 4 + count 8 // 4-byte header + 8 bytes per ACE cifsdosetacl then calls posixacltocifs to write the CIFS wire format into the sa...

CVE-2026-99110

The Linux kernel contains a heap overflow vulnerability in the smb client component within the cifs_do_set_acl() function. The issue arises because cifs_set_acl() validates the Access Control List (ACL) size using a calculation that assumes a smaller buffer size than what is actually used by posi...

UBUNTU-CVE-2026-99110

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in cifsdosetacl cifssetacl validates ACL size using posixaclxattrsize: 4 + count 8 // 4-byte header + 8 bytes per ACE cifsdosetacl then calls posixacltocifs to write the CIFS wire format into the sa...