kernel is vulnerable to denial of service (DoS). The vulnerability exists through a memory leak in drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to potential denial of service.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ddcff49b672239dda94d70d0fcf50317a9f4b51
www.securityfocus.com/bid/103397
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index
access.redhat.com/errata/RHSA-2019:2029
access.redhat.com/errata/RHSA-2019:2043
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=1335986
bugzilla.redhat.com/show_bug.cgi?id=1436351
bugzilla.redhat.com/show_bug.cgi?id=1537033
bugzilla.redhat.com/show_bug.cgi?id=1552203
bugzilla.redhat.com/show_bug.cgi?id=1577640
bugzilla.redhat.com/show_bug.cgi?id=1590228
bugzilla.redhat.com/show_bug.cgi?id=1593417
bugzilla.redhat.com/show_bug.cgi?id=1608955
bugzilla.redhat.com/show_bug.cgi?id=1609699
bugzilla.redhat.com/show_bug.cgi?id=1613056
bugzilla.redhat.com/show_bug.cgi?id=1616109
bugzilla.redhat.com/show_bug.cgi?id=1616425
bugzilla.redhat.com/show_bug.cgi?id=1622167
bugzilla.redhat.com/show_bug.cgi?id=1627563
bugzilla.redhat.com/show_bug.cgi?id=1628378
bugzilla.redhat.com/show_bug.cgi?id=1659146
bugzilla.redhat.com/show_bug.cgi?id=1665990
bugzilla.redhat.com/show_bug.cgi?id=1684780
bugzilla.redhat.com/show_bug.cgi?id=1693457
github.com/torvalds/linux/commit/0ddcff49b672239dda94d70d0fcf50317a9f4b51
usn.ubuntu.com/3676-1/
usn.ubuntu.com/3676-2/
usn.ubuntu.com/3677-1/
usn.ubuntu.com/3677-2/
usn.ubuntu.com/3678-1/
usn.ubuntu.com/3678-2/
usn.ubuntu.com/3678-3/
usn.ubuntu.com/3678-4/
www.debian.org/security/2018/dsa-4188