CVE-2022-49366 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ksmbd: fix reference count leak in smb_check_perm_dacl()

The issue happens in a specific path in smb_check_perm_dacl(). When \id\ and �id\ have the same value the function simply jumps out of the loop without decrementing the reference count of the object \posix_acls\ which is increased by get_acl() earlier. This may result in memory leaks.

Fix it by decreasing the reference count of \posix_acls\ before jumping to label ## Reference https://git.kernel.org/stable/c/248d71b440aef829f5cc5f6545ca113ef5062900 https://git.kernel.org/stable/c/9758a6653c27867d810de02b4e5697163dda9883 https://git.kernel.org/stable/c/cf824b95c12a1abacadbc2d069931963221a3414 https://git.kernel.org/stable/c/d21a580dafc69aa04f46e6099616146a536b0724