Description: | sound/core/seq_device.c in the Linux kernel before 4.13.4 allows local users to cause a denial of service (snd_rawmidi_dev_seq_free use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device. It was discovered that the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel contained a use-after-free when handling device removal. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
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