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CVE-2020-36313: An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, inclu...
CVE-2020-36313 · published 5 years ago
Summary
An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.
What to do
- Update linux linux_kernel to version 5.7 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel |
< 5.7 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Original advisory text
An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, inclu...
An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7 Release Notes Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07... Patch Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210604-0005/ Third Party Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-416Use After Free
Timeline
Published7 Apr 2021
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2020-36313 · NVD
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