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In the Linux kernel, the following vulnerability has been resolved:
vdpa: fix use-after-free on vp_vdpa_remove
When vp_vdpa driver is unbind, vp_vdpa is freed in vdpa_unregister_device and then vp_vdpa->mdev.pci_dev is dereferenced in vp_modern_remove, triggering use-after-free.
Call Trace of unbinding driver free vp_vdpa : do_syscall_64 vfs_write kernfs_fop_write_iter device_release_driver_internal pci_device_remove vp_vdpa_remove vdpa_unregister_device kobject_release device_release kfree
Call Trace of dereference vp_vdpa->mdev.pci_dev: vp_modern_remove pci_release_selected_regions pci_release_region pci_resource_len pci_resource_end (dev)->resource[(bar)].end
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 30, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 16, 2024 |
| Ubuntu | — | Upgrade linux-realtimeUpgrade linux-intel-iotg-5.15 | Nov 19, 2024 | Jul 16, 2024 |
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