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Red Hat: CVE-2019-19602: CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS (Multiple Advisories)

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Red Hat: CVE-2019-19602: CVE-2019-19602 kernel: cached use of fpu_fpregs_owner_ctx in arch/x86/include/asm/fpu/internal.h can lead to DoS (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:P)
Published
12/05/2019
Created
02/17/2021
Added
02/16/2021
Modified
12/15/2023

Description

fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.

Solution(s)

  • redhat-upgrade-bpftool
  • redhat-upgrade-bpftool-debuginfo
  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-abi-whitelists
  • redhat-upgrade-kernel-core
  • redhat-upgrade-kernel-cross-headers
  • redhat-upgrade-kernel-debug
  • redhat-upgrade-kernel-debug-core
  • redhat-upgrade-kernel-debug-debuginfo
  • redhat-upgrade-kernel-debug-devel
  • redhat-upgrade-kernel-debug-modules
  • redhat-upgrade-kernel-debug-modules-extra
  • redhat-upgrade-kernel-debuginfo
  • redhat-upgrade-kernel-debuginfo-common-s390x
  • redhat-upgrade-kernel-debuginfo-common-x86_64
  • redhat-upgrade-kernel-devel
  • redhat-upgrade-kernel-doc
  • redhat-upgrade-kernel-headers
  • redhat-upgrade-kernel-modules
  • redhat-upgrade-kernel-modules-extra
  • redhat-upgrade-kernel-tools
  • redhat-upgrade-kernel-tools-debuginfo
  • redhat-upgrade-kernel-tools-libs
  • redhat-upgrade-kernel-tools-libs-devel
  • redhat-upgrade-kernel-zfcpdump
  • redhat-upgrade-kernel-zfcpdump-core
  • redhat-upgrade-kernel-zfcpdump-debuginfo
  • redhat-upgrade-kernel-zfcpdump-devel
  • redhat-upgrade-kernel-zfcpdump-modules
  • redhat-upgrade-kernel-zfcpdump-modules-extra
  • redhat-upgrade-perf
  • redhat-upgrade-perf-debuginfo
  • redhat-upgrade-python3-perf
  • redhat-upgrade-python3-perf-debuginfo

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