In the Linux kernel before 5.0.6, there is a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e.Referenceshttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.6https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.11https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=23da9588037ecdd4901db76a5b79a42b529c4ec3https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=89189557b47b35683a27c80ee78aef18248eefb4https://security.netapp.com/advisory/ntap-20200204-0002/http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
