Answer in brief
CVE-2022-49219 records a Medium severity (CVSS 5.5) vulnerability in vfio/pci: fix memory leak during D3hot to D0 transition. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=51ef3a004b1eb6241e56b3aa8495769a092a4dc2 <da426ad86027b849b877d4628b277ffbbd2f5325 || >=51ef3a004b1eb6241e56b3aa8495769a092a4dc2 <4319f17fb8264ba39352b611dfa913a4d8c1d1a0 || >=51ef3a004b1eb6241e56b3aa8495769a092a4dc2 <26ddd196e9eb264da8e1bdc4df8a94d62581c8b5 || >=51ef3a004b1eb6241e56b3aa8495769a092a4dc2 <c8a1f8bd586ee31020614b8d48b702ece3e2ae44 || >=51ef3a004b1eb6241e56b3aa8495769a092a4dc2 <eadf88ecf6ac7d6a9f47a76c6055d9a1987a8991 | da426ad86027b849b877d4628b277ffbbd2f5325, 4319f17fb8264ba39352b611dfa913a4d8c1d1a0, 26ddd196e9eb264da8e1bdc4df8a94d62581c8b5, c8a1f8bd586ee31020614b8d48b702ece3e2ae44, eadf88ecf6ac7d6a9f47a76c6055d9a1987a8991 |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: fix memory leak during D3hot to D0 transition If 'vfio_pci_core_device::needs_pm_restore' is set (PCI device does not have No_Soft_Reset bit set in its PMCSR config register), then the current PCI state will be saved locally in 'vfio_pci_core_device::pm_save' during D0->D3hot transition and same will be restored back during D3hot->D0 transition. For saving the PCI state locally, pci_store_saved_state() is being used and the pci_load_and_free_saved_state() will free the allocated memory. But for reset related IOCTLs, vfio driver calls PCI reset-related API's which will internally change the PCI power state back to D0. So, when the guest resumes, then it will get the current state as D0 and it will skip the call to vfio_pci_set_power_state() for changing the power state to D0 explicitly. In this case, the memory pointed by 'pm_save' will never be freed. In a malicious sequence, the state changing to D3hot followed by VFIO_DEVICE_RESET/VFIO_DEVICE_PCI_HOT_RESET can be run in a loop and it can cause an OOM situation. This patch frees the earlier allocated memory first before overwriting 'pm_save' to prevent the mentioned memory leak.
Quoted source text, attributed separately from HOL analysis.