rhsa-2023_0854
Vulnerability from csaf_redhat
Published
2023-02-21 09:01
Modified
2024-11-06 02:28
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update

Notes

Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222) * kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945) * kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * RHEL8-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204) * SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062) * Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel [RT-8] (BZ#2139851) * scheduling while atomic in fpu_clone() -> fpu_inherit_perms() (BZ#2154469) * The latest RHEL 8.7.z2 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2159806)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "An update for kernel-rt is now available for Red Hat Enterprise Linux 8.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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        "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)\n\n* kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945)\n\n* kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* RHEL8-RT: Backport use of a dedicate thread for timer wakeups (BZ#2127204)\n\n* SNO Crashed twice - kernel BUG at lib/list_debug.c:28 (BZ#2132062)\n\n* Cannot trigger kernel dump using NMI on SNO node running PAO and RT kernel  [RT-8] (BZ#2139851)\n\n* scheduling while atomic in fpu_clone() -\u003e fpu_inherit_perms() (BZ#2154469)\n\n* The latest RHEL 8.7.z2 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2159806)",
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            "userInteraction": "NONE",
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          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "kernel: nfsd buffer overflow by RPC message over TCP with garbage data"
    }
  ]
}


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