Описание
Security update for xen
This update for xen fixes the following issues:
Updated to version 4.16.2 (bsc#1027519):
- CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
- CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).
Bugfixes:
- Fixed Xen DomU unable to emulate audio device (bsc#1201994).
- Fixed logic error in built-in default of max_event_channels (bsc#1167608, bsc#1201631).
Список пакетов
Image SLES15-SP4
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Image SLES15-SP4-SUSE-Rancher-Setup-BYOS
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SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Module for Basesystem 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP4
openSUSE Leap 15.4
Ссылки
- Link for SUSE-SU-2022:3727-1
- E-Mail link for SUSE-SU-2022:3727-1
- SUSE Security Ratings
- SUSE Bug 1027519
- SUSE Bug 1167608
- SUSE Bug 1201631
- SUSE Bug 1201994
- SUSE Bug 1203806
- SUSE Bug 1203807
- SUSE CVE CVE-2022-33746 page
- SUSE CVE CVE-2022-33748 page
Описание
P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.
Затронутые продукты
Ссылки
- CVE-2022-33746
- SUSE Bug 1203806
Описание
lock order inversion in transitive grant copy handling As part of XSA-226 a missing cleanup call was inserted on an error handling path. While doing so, locking requirements were not paid attention to. As a result two cooperating guests granting each other transitive grants can cause locks to be acquired nested within one another, but in respectively opposite order. With suitable timing between the involved grant copy operations this may result in the locking up of a CPU.
Затронутые продукты
Ссылки
- CVE-2022-33748
- SUSE Bug 1203807