CVE-2023-53175

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fix a crash in hv_pci_restore_msi_msg() during hibernation When a Linux VM with an assigned PCI device runs on Hyper-V, if the PCI device driver is not loaded yet (i.e. MSI-X/MSI is not enabled on the device yet), doing a VM hibernation triggers a panic in hv_pci_restore_msi_msg() -> msi_lock_descs(&pdev->dev), because pdev->dev.msi.data is still NULL. Avoid the panic by checking if MSI-X/MSI is enabled.

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2025-09-15

Last modified

2026-05-11

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/04bbe863241a9be7d57fb4cf217ee4a72f480e70
• https://git.kernel.org/stable/c/223fc5352054900f70b8b5e10cfc2f297e70c512
• https://git.kernel.org/stable/c/d0687755407b21d252b98dca6be459153a60c62a
• https://git.kernel.org/stable/c/e32fc2168aa6b477290392ddbb73d95f012b050c