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SUSE-SU-2022:3406-1

Опубликовано: 26 сент. 2022
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-150400_24_18 fixes one issue.

The following security issue was fixed:

  • CVE-2022-39188: Fixed a race condition between unmap_mapping_range() and munmap() on VM_PFNMAP mappings leads to stale TLB entry (bsc#1203116).

Список пакетов

SUSE Linux Enterprise Live Patching 15
kernel-livepatch-4_12_14-150000_150_95-default-3-150000.2.2
SUSE Linux Enterprise Live Patching 15 SP4
kernel-livepatch-5_14_21-150400_24_18-default-3-150400.2.2

Ссылки

Описание

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_18-default-3-150400.2.2
SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150000_150_95-default-3-150000.2.2
Ссылки