NULL Pointer Dereference Affecting kernel-rt package, versions *

Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/media/usb/siano/smsusb.c driver.

• https://security.netapp.com/advisory/ntap-20190905-0002/
• https://access.redhat.com/security/cve/CVE-2019-15218
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=31e0456de5be379b10fea0fa94a681057114a96e
• https://syzkaller.appspot.com/bug?id=4a5d7c8c2b6dbedb5b7218c6d7e8666bd2387517
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
• https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
• https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
• http://www.openwall.com/lists/oss-security/2019/08/20/2
• http://www.openwall.com/lists/oss-security/2019/08/22/2
• http://www.openwall.com/lists/oss-security/2019/08/22/3
• http://www.openwall.com/lists/oss-security/2019/08/22/4
• http://www.openwall.com/lists/oss-security/2019/08/22/5
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
• https://usn.ubuntu.com/4115-1/
• https://usn.ubuntu.com/4118-1/
• https://usn.ubuntu.com/4147-1/