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Ubuntu: (CVE-2022-49002): linux vulnerability

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Ubuntu: (CVE-2022-49002): linux vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
10/21/2024
Created
11/21/2024
Added
11/19/2024
Modified
02/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak.

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-aws-5-15
  • ubuntu-upgrade-linux-aws-5-4
  • ubuntu-upgrade-linux-aws-fips
  • ubuntu-upgrade-linux-aws-hwe
  • ubuntu-upgrade-linux-azure
  • ubuntu-upgrade-linux-azure-4-15
  • ubuntu-upgrade-linux-azure-5-15
  • ubuntu-upgrade-linux-azure-5-4
  • ubuntu-upgrade-linux-azure-fde
  • ubuntu-upgrade-linux-azure-fde-5-15
  • ubuntu-upgrade-linux-azure-fips
  • ubuntu-upgrade-linux-bluefield
  • ubuntu-upgrade-linux-fips
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-gcp-4-15
  • ubuntu-upgrade-linux-gcp-5-15
  • ubuntu-upgrade-linux-gcp-5-4
  • ubuntu-upgrade-linux-gcp-fips
  • ubuntu-upgrade-linux-gke
  • ubuntu-upgrade-linux-gkeop
  • ubuntu-upgrade-linux-gkeop-5-15
  • ubuntu-upgrade-linux-hwe
  • ubuntu-upgrade-linux-hwe-5-15
  • ubuntu-upgrade-linux-hwe-5-4
  • ubuntu-upgrade-linux-ibm
  • ubuntu-upgrade-linux-ibm-5-4
  • ubuntu-upgrade-linux-intel-iot-realtime
  • ubuntu-upgrade-linux-intel-iotg
  • ubuntu-upgrade-linux-intel-iotg-5-15
  • ubuntu-upgrade-linux-iot
  • ubuntu-upgrade-linux-kvm
  • ubuntu-upgrade-linux-lowlatency
  • ubuntu-upgrade-linux-lowlatency-hwe-5-15
  • ubuntu-upgrade-linux-nvidia
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-oracle-5-15
  • ubuntu-upgrade-linux-oracle-5-4
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-raspi-5-4
  • ubuntu-upgrade-linux-realtime
  • ubuntu-upgrade-linux-riscv-5-15
  • ubuntu-upgrade-linux-xilinx-zynqmp

References

  • https://attackerkb.com/topics/cve-2022-49002
  • CVE - 2022-49002
  • https://git.kernel.org/linus/4bedbbd782ebbe7287231fea862c158d4f08a9e3
  • https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa
  • https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3
  • https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2
  • https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d
  • https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e
  • https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7
  • https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f
  • https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf
  • https://www.cve.org/CVERecord?id=CVE-2022-49002
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