Description
In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1765 ↗
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99 ↗
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21 ↗
- https://www.exploit-db.com/exploits/46388/ ↗
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8 ↗
- https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9 ↗
- http://www.securityfocus.com/bid/107127 ↗
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9 ↗
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html ↗
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html ↗
- https://usn.ubuntu.com/3932-1/ ↗
- https://usn.ubuntu.com/3932-2/ ↗
- https://usn.ubuntu.com/3930-1/ ↗
- https://usn.ubuntu.com/3931-1/ ↗
- https://usn.ubuntu.com/3933-2/ ↗
- https://usn.ubuntu.com/3931-2/ ↗
- https://usn.ubuntu.com/3930-2/ ↗
- https://usn.ubuntu.com/3933-1/ ↗
- https://support.f5.com/csp/article/K11186236 ↗
- https://access.redhat.com/errata/RHSA-2019:0833 ↗
- https://access.redhat.com/errata/RHSA-2019:0818 ↗
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html ↗
- https://access.redhat.com/errata/RHBA-2019:0959 ↗
- https://access.redhat.com/errata/RHSA-2019:2809 ↗
- https://support.f5.com/csp/article/K11186236?utm_source=f5support&%3Butm_medium=RSS ↗
- https://access.redhat.com/errata/RHSA-2019:3967 ↗
- https://access.redhat.com/errata/RHSA-2020:0103 ↗