CVE-2022-48861

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

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4b1743bc715a3691a63ac21b349079b07bf1b19e	Patch
https://git.kernel.org/stable/c/dc54ba9932aeaaa1a21fe214af1f446593a78274	Patch
https://git.kernel.org/stable/c/eb057b44dbe35ae14527830236a92f51de8f9184	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-07-16 13:15

Updated : 2024-07-23 14:51

NVD link : CVE-2022-48861

Mitre link : CVE-2022-48861

CVE.ORG link : CVE-2022-48861

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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