CVE-2022-48861

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6, < 4b1743bc715a3691a63ac21b349079b07bf1b19e; >= 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6, < dc54ba9932aeaaa1a21fe214af1f446593a78274; >= 64b9f64f80a6f4b7ea51bf0510119cb15e801dc6, < eb057b44dbe35ae14527830236a92f51de8f9184
LinuxLinux5.13

References

Timeline

Published
Jul 16, 2024
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-48861: Medium severity, CVSS 5.5 | Vulnix