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Huawei EulerOS: CVE-2023-52864: kernel security update

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Huawei EulerOS: CVE-2023-52864: kernel security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/21/2024
Created
10/09/2024
Added
10/08/2024
Modified
10/08/2024

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: wmi: Fix opening of char device Since commit fa1f68db6ca7 ("drivers: misc: pass miscdevice pointer via file private data"), the miscdevice stores a pointer to itself inside filp->private_data, which means that private_data will not be NULL when wmi_char_open() is called. This might cause memory corruption should wmi_char_open() be unable to find its driver, something which can happen when the associated WMI device is deleted in wmi_free_devices(). Fix the problem by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container_of(). This also avoids wmi_char_open() picking a wrong WMI device bound to a driver with the same name as the original driver.

Solution(s)

  • huawei-euleros-2_0_sp10-upgrade-kernel
  • huawei-euleros-2_0_sp10-upgrade-kernel-abi-stablelists
  • huawei-euleros-2_0_sp10-upgrade-kernel-tools
  • huawei-euleros-2_0_sp10-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp10-upgrade-python3-perf

References

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