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Red Hat: CVE-2024-26946: kernel: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address (Multiple Advisories)

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Red Hat: CVE-2024-26946: kernel: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
05/01/2024
Created
09/07/2024
Added
09/06/2024
Modified
12/05/2024

Description

In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address Read from an unsafe address with copy_from_kernel_nofault() in arch_adjust_kprobe_addr() because this function is used before checking the address is in text or not. Syzcaller bot found a bug and reported the case if user specifies inaccessible data area, arch_adjust_kprobe_addr() will cause a kernel panic. [ mingo: Clarified the comment. ]

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-26946
  • RHSA-2024:6267
  • RHSA-2024:6268
  • RHSA-2024:6567
  • 查看数 696
  • 已创建
  • 最后回复

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