CVE-2026-31575
mm/userfaultfd: fix hugetlb fault mutex hash calculation
CVE-2026-31575 is fixed in 82 products on 1 platform, first by ALAS2023-2026-1693, released May 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0012
2nd percentile
mm/userfaultfd: fix hugetlb fault mutex hash calculation (Jianhui Zhou) [Orabug: 39273453]
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel-64kb · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-azure · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-default · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-default-base · sles 16.0 | 6.12.0-160000.34.1.160000.2.15 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-docs · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-kvmsmall · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-livepatch-6.12.90-120.164 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel-livepatch-6.18.25-55.108 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel-obs-qa · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-source · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-syms · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-zfcpdump · sles 16.0 | 6.12.0-160000.34.1 | SUSE-SU-2026:22087-1 | Jun 5, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.85-1 | DEBIAN-CVE-2026-31575 | May 15, 2026 |
| linux · Debian 14 | 6.19.14-1 | DEBIAN-CVE-2026-31575 | May 15, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.90-120.164.amzn2023 | ALAS2023-2026-1816 | Jun 8, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-55.108.amzn2023 | ALAS2023-2026-1693 | May 8, 2026 |
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