kernel: vhost fd leak in ioctl VHOST_SET_LOG_FD
Published Oct 19, 2015
2.1
LOWCVSS 2.0
EPSS 0.44%
Description
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
Affected products
No data.
- ≤ 4.1.4
No data.
Red Hat Enterprise Linux 4
kernel
Not affected
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-rt
Will not fix
Red Hat Enterprise MRG 2
realtime-kernel
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5. This issue has been rated as having Low impact, affects the Linux kernels as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2 and is currently not planned to be addressed in a future updates.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:P
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.44% (0.00442) | 36.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00442) | 34.99th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00079) | 21.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (22)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00009.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2015/dsa-3364 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.5 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2015/08/18/3 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/76400 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033666 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2748-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2749-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2751-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2752-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2759-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2760-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2777-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-6252 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1251839 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/7932c0bd7740f4cd2aa168d3ce0199e7af7d72d5 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-6252
- https://www.cve.org/CVERecord?id=CVE-2015-6252
Change history (0)
No recorded changes yet.