CVE-2023-52439

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: uio: Fix use-after-free in uio_open core-1 core-2 ------------------------------------------------------- uio_unregister_device uio_open idev = idr_find() device_unregister(&idev->dev) put_device(&idev->dev) uio_device_release get_device(&idev->dev) kfree(idev) uio_free_minor(minor) uio_release put_device(&idev->dev) kfree(idev) ------------------------------------------------------- In the core-1 uio_unregister_device(), the device_unregister will kfree idev when the idev->dev kobject ref is 1. But after core-1 device_unre...

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 3174e0f7de1ba392dc191625da83df02d695b60c, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < e93da893d52d82d57fc0db2ca566024e0f26ff50, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 5e0be1229ae199ebb90b33102f74a0f22d152570, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 5cf604ee538ed0c467abe3b4cda5308a6398f0f7, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 17a8519cb359c3b483fb5c7367efa9a8a508bdea, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 35f102607054faafe78d2a6994b18d5d9d6e92ad, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 913205930da6213305616ac539447702eaa85e41, >= 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 < 0c9ae0b8605078eafc3bea053cc78791e97ba2e2, >= 13af019c87f2d90e663742cb1a819834048842ae, >= 4.14.100 < 4.15, >= 4.18, > 4.18.0 < 4.19.306, >= 4.20.0 < 5.4.268, >= 5.5.0 < 5.10.209, >= 5.11.0 < 5.15.148, >= 5.16.0 < 6.1.74, >= 6.2.0 < 6.6.13, >= 6.7.0 < 6.7.1, 4.18

Fixed versions

4.19.306, 5.4.268, 5.10.209, 5.15.148, 6.1.74, 6.6.13, 6.7.1

Technical data

CVSS vector

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

CWE

CWE-415