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Vulnerability · Published May 1, 2024 · Assigned by Linux

CVE-2024-27007userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE

High 7.8

In plain English

A high-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 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 85.1% 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: userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE Commit d7a08838ab74 ("mm: userfaultfd: fix unexpected change to src_folio when UFFDIO_MOVE fails") moved the src_folio->{mapping, index} changing to after clearing the page-table and ensuring that it's not pinned. This avoids failure of swapout+migration and possibly memory corruption. However, the commit missed fixing it in the huge-page case.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.8.9-1DEBIAN-CVE-2024-27007
Debian:14linux6.8.9-1DEBIAN-CVE-2024-27007
Ubuntu:24.04:LTSlinux6.8.0-38.38USN-6893-1
Ubuntu:24.04:LTSlinux6.8.0-38.38UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-aws6.8.0-1011.12USN-6893-3
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1011.12~22.04.1UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-azure6.8.0-1010.10USN-6893-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11USN-6893-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1010.11UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-gke6.8.0-1006.9USN-6893-2
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1008.8UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-intel6.8.0-1007.14USN-6893-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-38.38.1USN-6893-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1009.9USN-6893-2
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1009.9~22.04.1UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8USN-6893-1
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1008.8UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8USN-6918-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1008.8UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1008.8~22.04.1UBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7USN-6893-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1007.7UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-27007
Ubuntu:24.04:LTSlinux-riscv6.8.0-38.38.1UBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-27007
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-27007

Affected products (as reported)

VendorProductVersions
Linux Linux adef440691bab824e39c1b17382322d195e1fab0 – before df5f6e683e7f21a15d8be6e7a0c7a46436963ebeadef440691bab824e39c1b17382322d195e1fab0 – before c0205eaf3af9f5db14d4b5ee4abacf4a583c3c50
Linux Linux 6.8

References