usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.8
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
lists.debian.org/debian-lts-announce/2020/06/msg00011.html
lists.debian.org/debian-lts-announce/2020/06/msg00012.html
lists.debian.org/debian-lts-announce/2020/06/msg00013.html
lkml.org/lkml/2020/3/23/52
patchwork.kernel.org/patch/11463781/
security.netapp.com/advisory/ntap-20200608-0001/
usn.ubuntu.com/4387-1/
usn.ubuntu.com/4388-1/
usn.ubuntu.com/4389-1/
usn.ubuntu.com/4390-1/
usn.ubuntu.com/4391-1/
www.debian.org/security/2020/dsa-4698
www.debian.org/security/2020/dsa-4699