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Red Hat: CVE-2023-52615: kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng (Multiple Advisories)

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Red Hat: CVE-2023-52615: kernel: hwrng: core - Fix page fault dead lock on mmap-ed hwrng (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
03/18/2024
Created
07/03/2024
Added
07/03/2024
Modified
12/16/2024

Description

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path.This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng.The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

Solution(s)

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

References

  • CVE-2023-52615
  • RHSA-2024:4211
  • RHSA-2024:4352
  • RHSA-2024:9315
  • 查看数 709
  • 已创建
  • 最后回复

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