Kernel: powerpc: kvm: Infinite loop via H_CEDE hypercall when running under hypervisor-mode
Published Aug 6, 2016
6.5
MEDIUMCVSS 3.0
EPSS 0.34%
Description
arch/powerpc/kvm/book3s_hv_rmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIG_KVM_BOOK3S_64_HV is enabled, allows guest OS users to cause a denial of service (host OS infinite loop) by making a H_CEDE hypercall during the existence of a suspended transaction.
Affected products
No data.
- ≤ 4.7
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.el7
Fixed · RHSA-2016:2574
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.el7 | Fixed | RHSA-2016:2574 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. This issue affects the version of the kernel packages as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
AV:L/AC:L/Au:S/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.34% (0.00345) | 25.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00348) | 26.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00086) | 22.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.03% (0.01034) | 41.16th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93d17397e4e2182fdaad503e2f9da46202c0f1c3 x_refsource_CONFIRM
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f024ee098476a3e620232e4a78cfac505f121245 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2016-2574.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2016/07/28/2 mailing-listx_refsource_MLISTMailing List
- https://access.redhat.com/security/cve/CVE-2016-5412 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1349916 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/93d17397e4e2182fdaad503e2f9da46202c0f1c3 x_refsource_CONFIRM
- https://github.com/torvalds/linux/commit/f024ee098476a3e620232e4a78cfac505f121245 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2016-5412
- https://www.cve.org/CVERecord?id=CVE-2016-5412
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93d17397e4e2182fdaad503e2f9da46202c0f1c3 | x_refsource_CONFIRM | |
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f024ee098476a3e620232e4a78cfac505f121245 | x_refsource_CONFIRM | |
| http://rhn.redhat.com/errata/RHSA-2016-2574.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.openwall.com/lists/oss-security/2016/07/28/2 | mailing-listx_refsource_MLISTMailing List | |
| https://access.redhat.com/security/cve/CVE-2016-5412 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1349916 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/torvalds/linux/commit/93d17397e4e2182fdaad503e2f9da46202c0f1c3 | x_refsource_CONFIRM | |
| https://github.com/torvalds/linux/commit/f024ee098476a3e620232e4a78cfac505f121245 | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-5412 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-5412 |
Change history (0)
No recorded changes yet.