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Red Hat: CVE-2021-37159: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (Multiple Advisories)

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Red Hat: CVE-2021-37159: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/21/2021
Created
05/14/2022
Added
05/13/2022
Modified
03/13/2024

Description

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.

Solution(s)

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

References

  • CVE-2021-37159
  • RHSA-2022:1975
  • RHSA-2022:1988

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