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OpenAdvisories
Unscored CVE-2026-23097 EUVD-2026-5445GHSA-3gqm-m375-7mp2

migrate: correct lock ordering for hugetlb file folios

Published Feb 4, 2026 · Updated Oct 19, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: kernel Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.14 Package: linux-aws-6.17 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-aws-fips Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.14 Package: linux-azure-6.17 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.14 Package: linux-azure-fde-6.2 Package: linux-azure-fde-6.8 Package: linux-azure-fips Package: linux-azure-nvidia Package: linux-azure-nvidia-6.14 Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.14 Package: linux-gcp-6.17 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.14 Package: linux-hwe-6.17 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.11 Package: linux-nvidia-6.17 Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.14 Package: linux-oem-6.17 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.14 Package: linux-oracle-6.17 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.14 Package: linux-realtime-6.17 Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.14 Package: linux-riscv-6.17 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Package: linux-xilinx Package: linux-xilinx-zynqmp Platform: Linux Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

migrate: correct lock ordering for hugetlb file folios

Syzbot has found a deadlock (analyzed by Lance Yang):

1) Task (5749): Holds folio_lock, then tries to acquire i_mmap_rwsem(read lock).
2) Task (5754): Holds i_mmap_rwsem(write lock), then tries to acquire
folio_lock.

migrate_pages()
-> migrate_hugetlbs()
-> unmap_and_move_huge_page() <- Takes folio_lock!
-> remove_migration_ptes()
-> __rmap_walk_file()
-> i_mmap_lock_read() <- Waits for i_mmap_rwsem(read lock)!

hugetlbfs_fallocate()
-> hugetlbfs_punch_hole() <- Takes i_mmap_rwsem(write lock)!
-> hugetlbfs_zero_partial_page()
-> filemap_lock_hugetlb_folio()
-> filemap_lock_folio()
-> __filemap_get_folio <- Waits for folio_lock!

The migration path is the one taking locks in the wrong order according to
the documentation at the top of mm/rmap.c. So expand the scope of the
existing i_mmap_lock to cover the calls to remove_migration_ptes() too.

This is (mostly) how it used to be after commit c0d0381ade79. That was
removed by 336bf30eb765 for both file & anon hugetlb pages when it should
only have been removed for anon hugetlb pages.

Affected products

VendorProductAffectedFixed
Linux Linux 5.9.9 – < 5.10, 5.10 5.10

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.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.18.8-1 —
Debian 13 linux 6.12.69-1 DSA-6126-1
Debian 12 linux 6.1.162-1 DSA-6127-1
Debian 11 linux 5.10.249-1 DLA-4475-1
Debian 11 linux-6.1 6.1.162-1~deb11u1 DLA-4476-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 24.04 LTS linux-bluefield 6.8.0-1022.26 —
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1089.91 —
Ubuntu 25.10 linux +8 No fix yet —
Ubuntu 24.04 LTS linux 6.8.0-117.117 USN-8278-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1055.58 USN-8278-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1056.62 USN-8278-2
Ubuntu 24.04 LTS linux-azure-6.17 6.17.0-1021.21~24.04.1 USN-8604-1
Ubuntu 24.04 LTS linux-azure-fde 6.8.0-1058.65 —
Ubuntu 24.04 LTS linux-azure-fde-6.17 6.17.0-1018.18~24.04.1 USN-8605-1
Ubuntu 24.04 LTS linux-azure-nvidia 6.8.0-1039.42 —
Ubuntu 24.04 LTS linux-gcp 6.8.0-1058.61 USN-8278-1
Ubuntu 24.04 LTS linux-gcp-6.17 6.17.0-1021.24~24.04.1 USN-8570-1
Ubuntu 24.04 LTS linux-gke 6.8.0-1054.60 USN-8278-1
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1041.44 USN-8278-1
Ubuntu 24.04 LTS linux-hwe-6.17 6.17.0-41.41~24.04.1 —
Ubuntu 24.04 LTS linux-ibm 6.8.0-1055.56 USN-8278-1
Ubuntu 24.04 LTS linux-lowlatency 6.8.0-117.117.1 USN-8278-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1054.57 USN-8289-1
Ubuntu 24.04 LTS linux-nvidia-6.17 6.17.0-1031.31 USN-8669-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1054.57.1 USN-8289-1
Ubuntu 24.04 LTS linux-nvidia-tegra 6.8.0-1024.24 USN-8296-2
Ubuntu 24.04 LTS linux-oem-6.17 6.17.0-1030.30 USN-8594-1
Ubuntu 24.04 LTS linux-oracle 6.8.0-1054.55 —
Ubuntu 24.04 LTS linux-oracle-6.17 6.17.0-1019.19~24.04.3 USN-8570-2
Ubuntu 24.04 LTS linux-raspi 6.8.0-1056.60 USN-8278-1
Ubuntu 24.04 LTS linux-riscv +20 No fix yet —
Ubuntu 24.04 LTS linux-xilinx 6.8.0-1032.33 USN-8499-1
Ubuntu 22.04 LTS linux 5.15.0-176.186 USN-8180-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1105.112 USN-8180-1
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1057.60~22.04.1 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1110.119 USN-8180-3
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1059.65~22.04.1 USN-8440-1
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1114.123 —
Ubuntu 22.04 LTS linux-azure-fde-6.8 6.8.0-1058.65~22.04.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1105.114 USN-8180-1
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1060.63~22.04.1 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1101.107 USN-8180-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1088.96 USN-8180-1
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-124.124~22.04.1 —
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1099.102 USN-8180-6, USN-8180-5
Ubuntu 22.04 LTS linux-ibm-6.8 6.8.0-1055.56~22.04.1 USN-8278-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1100.106 USN-8180-3
Ubuntu 22.04 LTS linux-kvm 5.15.0-1097.102 USN-8180-3
Ubuntu 22.04 LTS linux-lowlatency 5.15.0-175.185 USN-8180-1
Ubuntu 22.04 LTS linux-lowlatency-hwe-6.8 6.8.0-117.117.1~22.04.1 USN-8278-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1100.101 USN-8180-1
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1054.57~22.04.1 USN-8289-2
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1057.57 USN-8187-1
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1046.46 USN-8187-1
Ubuntu 22.04 LTS linux-oracle 5.15.0-1102.108 USN-8180-1
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1054.55~22.04.1 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 6.8.0-117.117~22.04.1 —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1070.74 USN-8275-1
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2045.46 USN-8278-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1051.52 USN-8278-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime-6.14 No fix yet —
Ubuntu Pro Realtime 24.04 LTS linux-realtime-6.17 6.17.0-1018.20~24.04.1 USN-8570-1
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1097.99 USN-8186-1
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1104.113 USN-8186-1
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1051.52~22.04.1 USN-8278-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-aws-fips 6.8.0-1055.58+fips1 USN-8278-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-azure-fips 6.8.0-1059.65+fips1 USN-8393-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-fips 6.8.0-116.116+fips1 USN-8296-1
Ubuntu Pro FIPS-updates 24.04 LTS linux-gcp-fips 6.8.0-1058.61+fips1 USN-8278-1
Ubuntu Pro FIPS-updates 22.04 LTS linux-aws-fips 5.15.0-1105.112+fips1 —
Ubuntu Pro FIPS-updates 22.04 LTS linux-azure-fips 5.15.0-1110.119+fips1 USN-8180-4
Ubuntu Pro FIPS-updates 22.04 LTS linux-fips 5.15.0-176.186+fips1 USN-8180-2
Ubuntu Pro FIPS-updates 22.04 LTS linux-gcp-fips 5.15.0-1105.114+fips1 USN-8180-2
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro 20.04 LTS linux-aws-5.15 5.15.0-1105.112~20.04.1 USN-8180-1
Ubuntu Pro 20.04 LTS linux-azure-5.15 5.15.0-1110.119~20.04.1 USN-8243-1
Ubuntu Pro 20.04 LTS linux-gcp-5.15 5.15.0-1106.115~20.04.1 USN-8297-1
Ubuntu Pro 20.04 LTS linux-hwe-5.15 5.15.0-176.186~20.04.1 USN-8188-1
Ubuntu Pro 20.04 LTS linux-ibm-5.15 5.15.0-1099.102~20.04.1 USN-8180-5
Ubuntu Pro 20.04 LTS linux-intel-iotg-5.15 5.15.0-1100.106~20.04.1 USN-8180-3
Ubuntu Pro 20.04 LTS linux-lowlatency-hwe-5.15 5.15.0-175.185~20.04.1 USN-8180-1
Ubuntu Pro 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1057.57~20.04.1 USN-8162-1
Ubuntu Pro 20.04 LTS linux-oracle-5.15 5.15.0-1102.108~20.04.1 USN-8180-3
Ubuntu Pro 20.04 LTS linux-riscv-5.15 5.15.0-1099.103~20.04.1 —
ReleasePackageFixed inAdvisory
RHEL 10 rv +76 6.12.0-124.43.1.el10_1 RHSA-2026:4012
RHEL 9 rv +75 5.14.0-611.36.1.el9_7 RHSA-2026:3488
RHEL 8 kernel-rt +12 4.18.0-553.109.1.rt7.450.el8_10 RHSA-2026:3463
RHEL 8 perf +26 4.18.0-553.109.1.el8_10 RHSA-2026:3464
Show 12 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS rv +77 6.12.0-55.72.1.el10_0 RHSA-2026:15883
RHEL 9.6 EUS rv +77 5.14.0-570.110.1.el9_6 RHSA-2026:11313
RHEL 9.4 EUS bpftool 7.3.0-427.121.1.el9_4 RHSA-2026:10108
RHEL 9.4 EUS rv +64 5.14.0-427.121.1.el9_4 RHSA-2026:10108
RHEL 9.2 E4S bpftool 7.0.0-284.169.1.el9_2 RHSA-2026:13734
RHEL 9.2 E4S kernel-rt +14 5.14.0-284.169.1.rt14.454.el9_2 RHSA-2026:14301
RHEL 9.2 E4S perf +47 5.14.0-284.169.1.el9_2 RHSA-2026:13734
RHEL 9.0 E4S kernel-rt +12 5.14.0-70.178.1.rt21.250.el9_0 RHSA-2026:14137
RHEL 9.0 E4S perf +28 5.14.0-70.178.1.el9_0 RHSA-2026:13936
RHEL 8.8 TUS perf +17 4.18.0-477.139.1.el8_8 RHSA-2026:13681
RHEL 8.8 E4S perf +18 4.18.0-477.139.1.el8_8 RHSA-2026:13681
RHEL 8.6 TUS perf +17 4.18.0-372.190.1.el8_6 RHSA-2026:13664
RHEL 8.6 E4S perf +25 4.18.0-372.190.1.el8_6 RHSA-2026:13664
RHEL 8.6 AUS perf +17 4.18.0-372.190.1.el8_6 RHSA-2026:13664
RHEL 8.4 EUS Long Life perf +17 4.18.0-305.194.1.el8_4 RHSA-2026:26535
RHEL 8.4 AUS perf +17 4.18.0-305.194.1.el8_4 RHSA-2026:26535

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 kernel-doc +1 6.12.0-124.43.1.el10_1 ALSA-2026:4012
AlmaLinux 9 rv +73 5.14.0-611.36.1.el9_7 ALSA-2026:3488
AlmaLinux 8 kernel-rt +9 4.18.0-553.109.1.rt7.450.el8_10 ALSA-2026:3463
AlmaLinux 8 perf +24 4.18.0-553.109.1.el8_10 ALSA-2026:3464

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 kernel 5.14.0-611.36.1.el9_7 RLSA-2026:3488
Rocky Linux 8 kernel 4.18.0-553.109.1.el8_10 RLSA-2026:3464
Rocky Linux 8 kernel-rt 4.18.0-553.109.1.rt7.450.el8_10 RLSA-2026:3463
ReleasePackageFixed inAdvisory
SLES 15 SP7 kernel-64kb +7 6.4.0-150700.53.78.1 SUSE-SU-2026:3790-1
SLES 15 SP7 kernel-default-base 6.4.0-150700.53.78.1.150700.17.43.2 SUSE-SU-2026:3790-1
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 kernel-64kb +8 6.12.0-160000.27.1 SUSE-SU-2026:20931-1
SLES for SAP 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20931-1
SLES 16.0 kernel-64kb +8 6.12.0-160000.27.1 SUSE-SU-2026:20931-1
SLES 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20931-1
SLE Micro 6.2 kernel-default-base 6.12.0-160000.27.1.160000.2.8 SUSE-SU-2026:20838-1
SLE Micro 6.2 kernel-rt +5 6.12.0-160000.27.1 SUSE-SU-2026:20873-1, SUSE-SU-2026:20838-1
SLE Micro 6.1 kernel-rt +4 6.4.0-51.1 SUSE-SU-2026:23194-1, SUSE-SU-2026:23193-1
SLE Micro 6.0 kernel-rt +4 6.4.0-51.1 SUSE-SU-2026:23244-1, SUSE-SU-2026:23241-1
SLE Live Patching 15 SP7 kernel-default 6.4.0-150700.53.78.1 SUSE-SU-2026:3790-1
SLE Live Patching 15 SP7 kernel-livepatch-SLE15-SP7-RT_Update_19 1-150700.1.5.1 SUSE-SU-2026:3810-1
SLE Live Patching 15 SP7 kernel-livepatch-SLE15-SP7_Update_20 1-150700.15.3.2 SUSE-SU-2026:3790-1
SUSE Real Time Module 15 SP7 kernel-rt +2 6.4.0-150700.7.72.1 SUSE-SU-2026:3810-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 kernel-default-base 6.12.0-160000.27.1.160000.2.8 openSUSE-SU-2026:20416-1
openSUSE Leap 16.0 kernel-rt +11 6.12.0-160000.27.1 openSUSE-SU-2026:20416-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 kernel-livepatch-6.12.68-92.122 +1 1:1.0-0.amzn2023 ALAS2023-2026-1468, ALAS2023-2026-1455
Amazon Linux 2023 perf +14 1:6.1.163-186.299.amzn2023 ALAS2023-2026-1468
Amazon Linux 2023 perf6.12 +14 1:6.12.68-92.122.amzn2023 ALAS2023-2026-1455

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 kernel 6.6.126.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 rv +29 6.12.0-124.43.1.el10_1 ELSA-2026-4012
Oracle Linux 9 kernel-uek +34 6.12.0-200.74.27.el10uek ELSA-2026-50372, ELSA-2026-50232, ELSA-2026-50160
Oracle Linux 9 rv +28 5.14.0-611.36.1.el9_7 ELSA-2026-3488
Oracle Linux 8 kernel-uek +17 5.15.0-318.199.3.2.el9uek ELSA-2026-50145
Oracle Linux 8 perf +19 4.18.0-553.109.1.el8_10 ELSA-2026-50145, ELSA-2026-3464

Advisories 50

References