kernel: Double free in block/blk-cgroup.c:blkcg_init_queue() can allow a local user to cause a denial of service
Published Feb 25, 2018
7.8
HIGHCVSS 3.1
EPSS 0.35%
Description
The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation failure.
Affected products
No data.
Configuration 1
- ≥ 4.1.41 · < 4.1.51
- ≥ 4.3 · < 4.4.123
- ≥ 4.5 · < 4.9.89
- ≥ 4.10 · < 4.11
Configuration 2
- 14.04
- 16.04
- 9.0
No data.
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-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| 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-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | 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 the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not present in the products listed.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
AV:L/AC:L/Au:N/C:C/I:C/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 | 0.35% (0.00353) | 26.57th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.35% (0.00353) | 28.99th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.97% (0.00967) | 26.07th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.97% (0.00967) | 0.00th | v1 |
References (10)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b54d816e00425c3a517514e0d677bb3cec49258 x_refsource_MISCPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2018-7480 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1549427 Issue Tracking
- https://github.com/torvalds/linux/commit/9b54d816e00425c3a517514e0d677bb3cec49258 x_refsource_MISCPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-7480
- https://usn.ubuntu.com/3654-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3654-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3656-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-7480
- https://www.debian.org/security/2018/dsa-4188 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b54d816e00425c3a517514e0d677bb3cec49258 | x_refsource_MISCPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-7480 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1549427 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/9b54d816e00425c3a517514e0d677bb3cec49258 | x_refsource_MISCPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-7480 | ||
| https://usn.ubuntu.com/3654-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3654-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3656-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-7480 | ||
| https://www.debian.org/security/2018/dsa-4188 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.