kernel: use after free in the recvmmsg exit path
Published Sep 21, 2017
8.1
HIGHCVSS 3.0
EPSS 0.36%
Description
In all Qualcomm products with Android releases from CAF using the Linux kernel, a race condition can allow access to already freed memory while querying event status via DCI.
Affected products
No data.
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 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 MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue is a duplicate of CVE-2016-7117; refer to that CVE for details. It has already been fixed in all supported Red Hat products.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:H/Au:N/C:P/I:N/A:N
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 2, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.36% (0.00360) | 27.44th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.36% (0.00360) | 29.77th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00079) | 34.49th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.08% (0.00079) | 34.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00079) | 32.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.34% (0.00344) | 3.22th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.34% (0.00344) | 0.00th | v1 |
References (7)
- http://www.securityfocus.com/bid/100658 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-8281 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1489092 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-8281
- https://source.android.com/security/bulletin/2017-09-01 x_refsource_CONFIRMPatchVendor Advisory
- https://source.android.com/security/bulletin/pixel/2017-12-01 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-8281
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100658 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-8281 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1489092 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-8281 | ||
| https://source.android.com/security/bulletin/2017-09-01 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://source.android.com/security/bulletin/pixel/2017-12-01 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2017-8281 |
Change history (0)
No recorded changes yet.