Kernel: KVM: oops when checking KVM_CAP_PPC_HTM on PPC platform
Published Nov 6, 2017
6.2
MEDIUMCVSS 3.0
EPSS 0.39%
Description
The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.
Affected products
No data.
- ≤ 4.13.10
No data.
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-49.el7a
Fixed · RHSA-2018:0654
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-49.el7a | Fixed | RHSA-2018:0654 |
| 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 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2.
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:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/Au:N/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00394) | 31.15th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.39% (0.00394) | 33.40th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00042) | 5.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00829) | 22.25th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00829) | 0.00th | v1 |
References (9)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac64115a66c18c01745bbd3c47a36b124e5fd8c0 x_refsource_MISCPatch
- http://openwall.com/lists/oss-security/2017/11/06/6 x_refsource_MISCMailing ListPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 x_refsource_MISCRelease Notes
- http://www.securityfocus.com/bid/101693 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-15306 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1510399 Issue Tracking
- https://github.com/torvalds/linux/commit/ac64115a66c18c01745bbd3c47a36b124e5fd8c0 x_refsource_MISCPatch
- https://nvd.nist.gov/vuln/detail/CVE-2017-15306
- https://www.cve.org/CVERecord?id=CVE-2017-15306
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac64115a66c18c01745bbd3c47a36b124e5fd8c0 | x_refsource_MISCPatch | |
| http://openwall.com/lists/oss-security/2017/11/06/6 | x_refsource_MISCMailing ListPatchThird Party Advisory | |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 | x_refsource_MISCRelease Notes | |
| http://www.securityfocus.com/bid/101693 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-15306 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1510399 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/ac64115a66c18c01745bbd3c47a36b124e5fd8c0 | x_refsource_MISCPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-15306 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-15306 |
Change history (0)
No recorded changes yet.