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Vulnerability · Published Sep 11, 2025 · Assigned by Linux

CVE-2025-39754mm/smaps: fix race between smaps_hugetlb_range and migration

Medium 4.7

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.7Medium
Exploit odds (30 days)0.1%top 96.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: mm/smaps: fix race between smaps_hugetlb_range and migration smaps_hugetlb_range() handles the pte without holdling ptl, and may be concurrenct with migration, leaing to BUG_ON in pfn_swap_entry_to_page(). The race is as follows. smaps_hugetlb_range migrate_pages huge_ptep_get remove_migration_ptes folio_unlock pfn_swap_entry_folio BUG_ON To fix it, hold ptl lock in smaps_hugetlb_range().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2025-39754
Debian:13linux6.12.43-1DEBIAN-CVE-2025-39754
Debian:14linux6.16.3-1DEBIAN-CVE-2025-39754
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2025-39754
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2025-39754
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2025-39754

Affected products (as reported)

VendorProductVersions
Linux Linux 25ee01a2fca02dfb5a3ce316e77910c468108199 – before 37ee0d97298b0547cb26b6957ccfea2d356bd0e725ee01a2fca02dfb5a3ce316e77910c468108199 – before f76089018b34dbe0c2e9b67c5b7d8860668748bb25ee01a2fca02dfb5a3ce316e77910c468108199 – before 2a1f3663974162b8f1e098196f557cfc1d16013825ee01a2fca02dfb5a3ce316e77910c468108199 – before 09fc018f48871123ad5dbd7b03c956580232ed7625ee01a2fca02dfb5a3ce316e77910c468108199 – before b625883ccbcc2b57808db51d1375b1d7b9bcb3e525ee01a2fca02dfb5a3ce316e77910c468108199 – before 45d19b4b6c2d422771c29b83462d84afcbb33f01
Linux Linux 4.4

References