In the Linux kernel 4.12, 3.10, 2.6 and possibly earlier versions a race condition vulnerability exists in the sound system, this can lead to a deadlock and denial of service condition. https://nvd.nist.gov/vuln/detail/CVE-2018-1000004 Fixed by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bd80091567789f1c0cb70eb4737aac8bcd2b6b9 Fixed by https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d85739367c6d56e475c281945c68fdb05ca74b4c
