Ubuntu: (CVE-2022-48973): linux vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: amd8111: Fix PCI device reference count leak 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() after the 'out' label. Since pci_dev_put() can handle NULL input parameter, there is no problem for the 'Device not found' branch. For the normal path, add pci_dev_put() in amd_gpio_exit().
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-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-bluefield
- 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-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-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-riscv-5-15
- ubuntu-upgrade-linux-xilinx-zynqmp
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