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Ubuntu: (Multiple Advisories) (CVE-2024-36932): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2024-36932): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/30/2024
Created
08/10/2024
Added
08/09/2024
Modified
08/14/2024

Description

In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Prevent use-after-free from occurring after cdev removal Since thermal_debug_cdev_remove() does not run under cdev->lock, it can run in parallel with thermal_debug_cdev_state_update() and it may free the struct thermal_debugfs object used by the latter after it has been checked against NULL. If that happens, thermal_debug_cdev_state_update() will access memory that has been freed already causing the kernel to crash. Address this by using cdev->lock in thermal_debug_cdev_remove() around the cdev->debugfs value check (in case the same cdev is removed at the same time in two different threads) and its reset to NULL. Cc :6.8+ <stable@vger.kernel.org> # 6.8+

Solution(s)

  • ubuntu-upgrade-linux-image-6-8-0-1008-gke
  • ubuntu-upgrade-linux-image-6-8-0-1009-raspi
  • ubuntu-upgrade-linux-image-6-8-0-1010-ibm
  • ubuntu-upgrade-linux-image-6-8-0-1010-oem
  • ubuntu-upgrade-linux-image-6-8-0-1010-oracle
  • ubuntu-upgrade-linux-image-6-8-0-1010-oracle-64k
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-64k
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-6-8-0-1012-gcp
  • ubuntu-upgrade-linux-image-6-8-0-1013-aws
  • ubuntu-upgrade-linux-image-6-8-0-40-generic
  • ubuntu-upgrade-linux-image-6-8-0-40-generic-64k
  • ubuntu-upgrade-linux-image-6-8-0-40-lowlatency
  • ubuntu-upgrade-linux-image-6-8-0-40-lowlatency-64k
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-hwe-24-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-classic
  • ubuntu-upgrade-linux-image-ibm-lts-24-04
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-64k
  • ubuntu-upgrade-linux-image-nvidia
  • ubuntu-upgrade-linux-image-nvidia-6-8
  • ubuntu-upgrade-linux-image-nvidia-64k
  • ubuntu-upgrade-linux-image-nvidia-64k-6-8
  • ubuntu-upgrade-linux-image-nvidia-lowlatency
  • ubuntu-upgrade-linux-image-nvidia-lowlatency-64k
  • ubuntu-upgrade-linux-image-oem-24-04
  • ubuntu-upgrade-linux-image-oem-24-04a
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-64k
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-24-04

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