kernel: Use after free in __ext4_journal_stop
Published Nov 16, 2016
7.8
HIGHCVSS 3.1
EPSS 2.00%
Description
The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field.
Affected products
No data.
- ≥ 3.10.85 · < 3.12
- ≥ 3.12.46 · < 3.12.52
- ≥ 3.14.49 · < 3.14.59
- ≥ 3.18.20 · < 3.18.54
- ≥ 4.1.4 · < 4.1.15
- ≥ 4.2 · < 4.2.8
- ≥ 4.3 · < 4.3.3
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-rt
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-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 Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG 2.x. This issue has been rated as having moderate security impact.
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 | 2.00% (0.01999) | 79.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.00% (0.01999) | 78.08th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.25% (0.00246) | 45.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00094) | 41.55th | v3 (v2023.03.01) |
| Jul 13, 2024 | 0.09% (0.00094) | 40.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00094) | 38.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (9)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6934da9238da947628be83635e365df41064b09b x_refsource_CONFIRMPatchVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3 x_refsource_CONFIRMRelease Notes
- http://www.securityfocus.com/bid/94135 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8961 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1399711 Issue Tracking
- https://github.com/torvalds/linux/commit/6934da9238da947628be83635e365df41064b09b x_refsource_CONFIRMPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8961
- https://source.android.com/security/bulletin/2016-11-01.html x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-8961
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6934da9238da947628be83635e365df41064b09b | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3 | x_refsource_CONFIRMRelease Notes | |
| http://www.securityfocus.com/bid/94135 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-8961 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1399711 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/6934da9238da947628be83635e365df41064b09b | x_refsource_CONFIRMPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8961 | ||
| https://source.android.com/security/bulletin/2016-11-01.html | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2015-8961 |
Change history (0)
No recorded changes yet.