VULNERABILITY

Red Hat: CVE-2022-48804: kernel: vt_ioctl: fix array_index_nospec in vt_setactivate (Multiple Advisories)

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Red Hat: CVE-2022-48804: kernel: vt_ioctl: fix array_index_nospec in vt_setactivate (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:C)
Published
07/16/2024
Created
09/26/2024
Added
09/25/2024
Modified
03/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: vt_ioctl: fix array_index_nospec in vt_setactivate array_index_nospec ensures that an out-of-bounds value is set to zero on the transient path. Decreasing the value by one afterwards causes a transient integer underflow. vsa.console should be decreased first and then sanitized with array_index_nospec. Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU Amsterdam.

Solution(s)

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

References

  • CVE-2022-48804
  • RHSA-2024:10771
  • RHSA-2024:7000
  • RHSA-2024:7001
  • RHSA-2024:9315

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