CVE-2025-22039

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix overflow in dacloffset bounds check

The dacloffset field was originally typed as int and used in an

unchecked addition, which could overflow and bypass the existing

bounds check in both smb_check_perm_dacl() and smb_inherit_dacl().

This could result in out-of-bounds memory access and a kernel crash

when dereferencing the DACL pointer.

This patch converts dacloffset to unsigned int and uses

check_add_overflow() to validate access to the DACL.