In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.Referenceshttps://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447https://security.netapp.com/advisory/ntap-20200103-0001/https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
