In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.
https://usn.ubuntu.com/4145-1/
https://support.f5.com/csp/article/K58502654?utm_source=f5support&%3Butm_medium=RSS
https://support.f5.com/csp/article/K58502654
https://security.netapp.com/advisory/ntap-20190905-0002/
https://seclists.org/bugtraq/2019/Aug/48
https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html