kernel: Fork of large process causes memory corruption
Published Apr 27, 2016
7.8
HIGHCVSS 3.1
EPSS 0.56%
Description
The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.
Affected products
No data.
Configuration 1
- ≥ 2.6.25 · < 3.2.79
- ≥ 3.3 · < 3.12.58
- ≥ 3.13 · < 3.16.35
- ≥ 3.17 · < 4.1.21
- ≥ 4.2 · < 4.4.6
Configuration 2
- 6.0
- 7.0
- 8.0
Configuration 3
- 7.0
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-642.11.1.el6
Fixed · RHSA-2016:2766
Red Hat Enterprise Linux 7
kernel-0:3.10.0-327.28.2.el7
Fixed · RHSA-2016:1539
Red Hat Enterprise Linux 5
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 6 | kernel-0:2.6.32-642.11.1.el6 | Fixed | RHSA-2016:2766 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-327.28.2.el7 | Fixed | RHSA-2016:1539 |
| Red Hat Enterprise Linux 5 | 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
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
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:L/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.56% (0.00557) | 44.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.56% (0.00562) | 42.06th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.17% (0.00171) | 36.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00232) | 62.18th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.23% (0.00232) | 60.54th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00317) | 69.61th | v3 (v2023.03.01) |
| Dec 14, 2023 | 0.32% (0.00317) | 67.13th | v3 (v2023.03.01) |
| Nov 10, 2023 | 0.29% (0.00292) | 65.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00224) | 58.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (17)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1 x_refsource_CONFIRMPatchVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1539.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2766.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2016/dsa-3607 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html x_refsource_CONFIRMThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-2143 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1308908 Issue Tracking
- https://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2016-2143
- https://security-tracker.debian.org/tracker/CVE-2016-2143 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-2143
Change history (0)
No recorded changes yet.