In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : free ->vol_utbl exfat_load_default_upcase_table : return error exfat_kill_sb() delayed_free() exfat_free_upcase_table() <--------- double free This patch set ->vol_util as NULL after freeing it.
https://git.kernel.org/stable/c/d3cef0e7a5c1aa6217c51faa9ce8ecac35d6e1fd
https://git.kernel.org/stable/c/66e84439ec2af776ce749e8540f8fdd257774152
https://git.kernel.org/stable/c/1f3d9724e16d62c7d42c67d6613b8512f2887c22
https://git.kernel.org/stable/c/13d8de1b6568dcc31a95534ced16bc0c9a67bc15