kernel: Use after free in seq file
Published Nov 16, 2016
7.8
HIGHCVSS 3.1
EPSS 2.97%
Description
Use-after-free vulnerability in the disk_seqf_stop function in block/genhd.c in the Linux kernel before 4.7.1 allows local users to gain privileges by leveraging the execution of a certain stop operation even if the corresponding start operation had failed.
Affected products
No data.
- < 3.2.84
- ≥ 3.3 · < 3.10.103
- ≥ 3.11 · < 3.12.63
- ≥ 3.13 · < 3.14.76
- ≥ 3.15 · < 3.16.39
- ≥ 3.17 · < 3.18.40
- ≥ 3.19 · < 4.1.31
- ≥ 4.2 · < 4.4.18
- ≥ 4.5 · < 4.6.7
- ≥ 4.7 · < 4.7.1
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.1.1.el6
Fixed · RHSA-2017:0892
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.21.1.el7
Fixed · RHSA-2017:1308
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.21.1.rt56.438.el7
Fixed · RHSA-2017:1298
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-514.rt56.221.el6rt
Fixed · RHSA-2017:1297
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.1.1.el6 | Fixed | RHSA-2017:0892 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.21.1.el7 | Fixed | RHSA-2017:1308 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.21.1.rt56.438.el7 | Fixed | RHSA-2017:1298 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-514.rt56.221.el6rt | Fixed | RHSA-2017:1297 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code which can trigger the flaw is not present in the products listed. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/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
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 | 2.97% (0.02966) | 86.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.97% (0.02966) | 85.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.64% (0.00641) | 68.84th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00147) | 52.14th | v3 (v2023.03.01) |
| Jul 4, 2024 | 0.15% (0.00147) | 50.98th | v3 (v2023.03.01) |
| Jun 18, 2024 | 0.14% (0.00135) | 49.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00135) | 47.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.44% (0.02444) | 81.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.44% (0.02444) | 79.88th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.44% (0.02444) | 58.47th | v2 (v2022.01.01) |
References (13)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=77da160530dd1dc94f6ae15a981f24e5f0021e84 x_refsource_CONFIRMExploitPatchVendor Advisory
- http://source.android.com/security/bulletin/2016-11-01.html x_refsource_CONFIRMThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.1 x_refsource_CONFIRMRelease Notes
- http://www.securityfocus.com/bid/94135 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:0892 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1297 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1298 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1308 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-7910 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1399727 Issue Tracking
- https://github.com/torvalds/linux/commit/77da160530dd1dc94f6ae15a981f24e5f0021e84 x_refsource_CONFIRMExploitPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7910
- https://www.cve.org/CVERecord?id=CVE-2016-7910
Change history (0)
No recorded changes yet.