Race condition in the ion_ioctl function in drivers/staging/android/ion/ion.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) by calling ION_IOC_FREE on two CPUs at the same time
Published Dec 8, 2016
7.8
HIGHCVSS 3.1
EPSS 1.74%
Description
Race condition in the ion_ioctl function in drivers/staging/android/ion/ion.c in the Linux kernel before 4.6 allows local users to gain privileges or cause a denial of service (use-after-free) by calling ION_IOC_FREE on two CPUs at the same time.
Affected products
No data.
- ≥ 3.14 · < 3.16.40
- ≥ 3.17 · < 3.18.51
- ≥ 3.19 · < 4.1.41
- ≥ 4.2 · < 4.4.65
- ≥ 4.5 · < 4.6
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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
No CVSS v3.0 score for this CVE.
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 | 1.74% (0.01736) | 76.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.74% (0.01736) | 74.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00276) | 49.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00068) | 31.93th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.07% (0.00068) | 29.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00068) | 27.77th | 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 (4)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9590232bb4f4cc824f3425a6e1349afbe6d6d2b7 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- http://source.android.com/security/bulletin/2016-12-01.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/94669 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/9590232bb4f4cc824f3425a6e1349afbe6d6d2b7 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9590232bb4f4cc824f3425a6e1349afbe6d6d2b7 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory | |
| http://source.android.com/security/bulletin/2016-12-01.html | x_refsource_CONFIRMThird Party Advisory | |
| http://www.securityfocus.com/bid/94669 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/torvalds/linux/commit/9590232bb4f4cc824f3425a6e1349afbe6d6d2b7 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory |
Change history (0)
No recorded changes yet.