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

Bluetooth: btrtl: Prevent potential NULL dereference

The btrtl_initialize() function checks that rtl_load_file() either
had an error or it loaded a zero length file.  However, if it loaded
a zero length file then the error code is not set correctly.  It
results in an error pointer vs NULL bug, followed by a NULL pointer
dereference.  This was detected by Smatch:

drivers/bluetooth/btrtl.c:592 btrtl_initialize() warn: passing zero to 'ERR_PTR'

https://git.kernel.org/stable/c/324dddea321078a6eeb535c2bff5257be74c9799

https://git.kernel.org/stable/c/3db6605043b50c8bb768547b23e0222f67ceef3e

https://git.kernel.org/stable/c/53ceef799dcfc22c734d600811bfc9dd32eaea0a

https://git.kernel.org/stable/c/aaf356f872a60db1e96fb762a62c4607fd22741f

https://git.kernel.org/stable/c/d8441818690d795232331bd8358545c5c95b6b72