In the Linux kernel, the following vulnerability has been resolved:
exfat: fix refcount leak in exfat_find
Fix refcount leaks in exfat_find related to exfat_get_dentry_set.
Function exfat_get_dentry_set would increase the reference counter of
es->bh on success. Therefore, exfat_put_dentry_set must be called
after exfat_get_dentry_set to ensure refcount consistency. This patch
relocate two checks to avoid possible leaks.