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Ubuntu: (Multiple Advisories) (CVE-2024-41021): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-41021): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/29/2024
Created
11/05/2024
Added
11/04/2024
Modified
12/13/2024

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.

Solution(s)

  • ubuntu-upgrade-linux-image-6-8-0-1002-gkeop
  • ubuntu-upgrade-linux-image-6-8-0-1013-gke
  • ubuntu-upgrade-linux-image-6-8-0-1014-ibm
  • ubuntu-upgrade-linux-image-6-8-0-1014-raspi
  • ubuntu-upgrade-linux-image-6-8-0-1015-oracle
  • ubuntu-upgrade-linux-image-6-8-0-1015-oracle-64k
  • ubuntu-upgrade-linux-image-6-8-0-1016-azure
  • ubuntu-upgrade-linux-image-6-8-0-1016-azure-fde
  • ubuntu-upgrade-linux-image-6-8-0-1016-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1016-oem
  • ubuntu-upgrade-linux-image-6-8-0-1017-azure
  • ubuntu-upgrade-linux-image-6-8-0-1017-azure-fde
  • ubuntu-upgrade-linux-image-6-8-0-1017-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1017-nvidia
  • ubuntu-upgrade-linux-image-6-8-0-1017-nvidia-64k
  • ubuntu-upgrade-linux-image-6-8-0-1017-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1017-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-1018-aws
  • ubuntu-upgrade-linux-image-6-8-0-48-generic
  • ubuntu-upgrade-linux-image-6-8-0-48-generic-64k
  • ubuntu-upgrade-linux-image-6-8-0-48-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-48-lowlatency-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-fde
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-22-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-6-8
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-classic
  • ubuntu-upgrade-linux-image-ibm-lts-24-04
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-lowlatency-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-22-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-24-04
  • ubuntu-upgrade-linux-image-nvidia
  • ubuntu-upgrade-linux-image-nvidia-6-8
  • ubuntu-upgrade-linux-image-nvidia-64k
  • ubuntu-upgrade-linux-image-nvidia-64k-6-8
  • ubuntu-upgrade-linux-image-nvidia-64k-hwe-22-04
  • ubuntu-upgrade-linux-image-nvidia-hwe-22-04
  • ubuntu-upgrade-linux-image-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-oem-22-04
  • ubuntu-upgrade-linux-image-oem-22-04a
  • ubuntu-upgrade-linux-image-oem-22-04b
  • ubuntu-upgrade-linux-image-oem-22-04c
  • ubuntu-upgrade-linux-image-oem-22-04d
  • ubuntu-upgrade-linux-image-oem-24-04
  • ubuntu-upgrade-linux-image-oem-24-04a
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-22-04
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04

References

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