Description
The do_get_mempolicy function in mm/mempolicy.c in the Linux kernel before 4.12.9 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted system calls.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.12.12-1 | — |
| Debian 13 | linux | 4.12.12-1 | — |
| Debian 12 | linux | 4.12.12-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-gcp-6.11 +4 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-97.120 | — |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1038.47 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1005.7 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1002.5 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.13.0-32.35~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1008.13 | — |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1075.83 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1077.82 | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-157.207 | USN-3754-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-97.120~14.04.1 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +10 | 3.10.0-862.11.6.rt56.819.el7 | RHSA-2018:2395 |
| RHEL 7 | perf +18 | 3.10.0-862.11.6.el7 | RHSA-2018:2384 |
| RHEL 6 | perf +16 | 2.6.32-754.2.1.el6 | RHSA-2018:2164 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.4 EUS | perf +18 | 3.10.0-693.43.1.el7 | RHSA-2018:3540 |
| RHEL 7.3 EUS | perf +18 | 3.10.0-514.58.1.el7 | RHSA-2018:2785 |
| RHEL 7.2 TUS | perf +12 | 3.10.0-327.76.1.el7 | RHSA-2018:3590 |
| RHEL 7.2 E4S | perf +12 | 3.10.0-327.76.1.el7 | RHSA-2018:3590 |
| RHEL 7.2 AUS | perf +12 | 3.10.0-327.76.1.el7 | RHSA-2018:3590 |
| RHEL 6.7 EUS | perf +16 | 2.6.32-573.65.2.el6 | RHSA-2018:2925 |
| RHEL 6.6 TUS | perf +10 | 2.6.32-504.76.2.el6 | RHSA-2018:2924 |
| RHEL 6.6 AUS | perf +10 | 2.6.32-504.76.2.el6 | RHSA-2018:2924 |
| RHEL 6.5 AUS | perf +10 | 2.6.32-431.93.2.el6 | RHSA-2018:2933 |
| RHEL 6.4 AUS | perf +9 | 2.6.32-358.93.1.el6 | RHSA-2018:2791 |
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-693.43.1.rt56.630.el6rt | RHSA-2018:3586 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.93.1 | SUSE-SU-2018:1375-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_28 | 1-2.5.1 | SUSE-SU-2018:1375-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.133.1 | SUSE-SU-2018:1375-1, SUSE-SU-2018:1374-1 |
| SLES 12 | kgraft-patch-SLE12_Update_35 | 1-1.5.1 | SUSE-SU-2018:1374-1 |
| SLES 11 SP4 | kernel-ec2 +9 | 3.0.101-108.48.1 | SUSE-SU-2018:1368-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.29.1 | SUSE-SU-2018:1376-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.93.1 | SUSE-SU-2018:1375-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_28 | 1-2.5.1 | SUSE-SU-2018:1375-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.48.1 | SUSE-SU-2018:1368-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.27.1 | SUSE-SU-2018:1846-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.29.1 | SUSE-SU-2018:1376-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | perf +7 | 4.14.33-59.34.amzn2 | ALAS2-2018-994 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.24.1.el6uek | 0.4.5-3.el6 | ELSA-2018-4211 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.24.1.el7uek | 0.4.5-3.el7 | ELSA-2018-4211 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.24.1.el7uek | ELSA-2018-4211, ELSA-2018-4114 |
| Oracle Linux 7 | perf +11 | 3.10.0-862.11.6.el7 | ELSA-2018-2384 |
Advisories 21
- RHSA-2018:3590 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:3586 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:3540 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:2933 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:2925 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:2924 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:2164 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2018:2791 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2018:2785 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2018:2395 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2018:2384 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-3754-1 linux vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- SUSE-SU-2018:1374-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1376-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1375-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1368-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1846-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2018-994 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 15, 2018
- ELSA-2018-4211 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 10, 2018
- ELSA-2018-2384 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 14, 2018
- ELSA-2018-4114 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 22, 2018
References
- RHSA-2018:3540 vendor-advisory
- RHSA-2018:2785 vendor-advisory
- RHSA-2018:2164 vendor-advisory
- RHSA-2018:2925 vendor-advisory
- RHSA-2018:2933 vendor-advisory
- RHSA-2018:2395 vendor-advisory
- RHSA-2018:2384 vendor-advisory
- USN-3754-1 vendor-advisory
- RHSA-2018:3590 vendor-advisory
- 104093 vdb-entry
- RHSA-2018:2924 vendor-advisory
- RHSA-2018:3586 vendor-advisory
- RHSA-2018:2791 vendor-advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- https://github.com/torvalds/linux/commit/73223e4e2e3867ebf033a5a8eb2e5df0158ccc99
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=73223e4e2e3867ebf033a5a8eb2e5df0158ccc99
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.9