Log in Start free

Vulnerability · Published Jul 29, 2024 · Assigned by Linux

CVE-2024-41021s390/mm: Fix VM_FAULT_HWPOISON handling in do_exception()

Medium 5.5

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 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 87.1% 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: s390/mm: Fix VM_FAULT_HWPOISON handling in do_exception() There is no support for HWPOISON, MEMORY_FAILURE, or ARCH_HAS_COPY_MC on s390. Therefore we do not expect to see VM_FAULT_HWPOISON in do_exception(). However, since commit af19487f00f3 ("mm: make PTE_MARKER_SWAPIN_ERROR more general"), it is possible to see VM_FAULT_HWPOISON in combination with PTE_MARKER_POISONED, even on architectures that do not support HWPOISON otherwise. In this case, we will end up on the BUG() in do_exception(). Fix this by treating VM_FAULT_HWPOISON the same as VM_FAULT_SIGBUS, similar to x86 when MEMORY_FAILURE is not configured. Also print unexpected fault flags, for easier debugging. Note that VM_FAULT_HWPOISON_LARGE is not expected, because s390 cannot support swap entries on other levels than PTE level.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.9.12-1DEBIAN-CVE-2024-41021
Debian:14linux6.9.12-1DEBIAN-CVE-2024-41021
Ubuntu:24.04:LTSlinux6.8.0-48.48USN-7089-1
Ubuntu:24.04:LTSlinux6.8.0-48.48UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-aws6.8.0-1018.20UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-aws6.8.0-1018.20USN-7089-3
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1018.19~22.04.1USN-7089-3
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1018.19~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-azure6.8.0-1017.20USN-7089-2
Ubuntu:24.04:LTSlinux-azure6.8.0-1017.20UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1017.20~22.04.1USN-7090-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1017.20~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-gcp6.8.0-1017.19UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-gcp6.8.0-1017.19USN-7089-2
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1017.19~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1017.19~22.04.1USN-7089-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1013.17USN-7089-6
Ubuntu:24.04:LTSlinux-gke6.8.0-1013.17UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1002.4UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1002.4USN-7156-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-48.48~22.04.1USN-7089-1
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-48.48~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-ibm6.8.0-1015.15USN-7089-2
Ubuntu:24.04:LTSlinux-ibm6.8.0-1015.15UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-48.48.3USN-7089-7
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-48.48.3UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-48.48.3~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-48.48.3~22.04.1USN-7089-7
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1017.19UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1017.19USN-7095-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1017.19~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1017.19~22.04.1USN-7095-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1017.19.1USN-7095-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1017.19.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1016.16USN-7089-4
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1016.16UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-oracle6.8.0-1015.16USN-7089-3
Ubuntu:24.04:LTSlinux-oracle6.8.0-1015.16UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1015.15~22.04.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1015.15~22.04.1USN-7089-3
Ubuntu:24.04:LTSlinux-raspi6.8.0-1014.16UBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-raspi6.8.0-1014.16USN-7089-5
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-41021
Ubuntu:24.04:LTSlinux-riscv6.8.0-48.48.1UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-48.48.1~22.04.2UBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-41021
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-41021

Affected products (as reported)

VendorProductVersions
Linux Linux af19487f00f34ff8643921d7909dbb3fedc7e329 – before 73a9260b7366d2906ec011e100319359fe2277d0af19487f00f34ff8643921d7909dbb3fedc7e329 – before 9e13767ccefdc4f8aa92514b592b60f6b54882ffaf19487f00f34ff8643921d7909dbb3fedc7e329 – before a3aefb871222a9880602d1a44a558177b4143e3baf19487f00f34ff8643921d7909dbb3fedc7e329 – before df39038cd89525d465c2c8827eb64116873f141a
Linux Linux 6.6

References