Description (CNA)
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_unregister, put_device and before doing kfree, the core-2 may get_device. Then: 1. After core-1 kfree idev, the core-2 will do use-after-free for idev. 2. When core-2 do uio_release and put_device, the idev will be double freed. To address this issue, we can get idev atomic & inc idev reference with minor_lock.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 3174e0f7de1ba392dc191625da83df02d695b60c; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before e93da893d52d82d57fc0db2ca566024e0f26ff50; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 5e0be1229ae199ebb90b33102f74a0f22d152570; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 5cf604ee538ed0c467abe3b4cda5308a6398f0f7; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 17a8519cb359c3b483fb5c7367efa9a8a508bdea; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 35f102607054faafe78d2a6994b18d5d9d6e92ad; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 913205930da6213305616ac539447702eaa85e41; affected 57c5f4df0a5a0ee83df799991251e2ee93a5e4e9 before 0c9ae0b8605078eafc3bea053cc78791e97ba2e2; affected 13af019c87f2d90e663742cb1a819834048842ae; affected 4.14.100 before 4.15 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 4.19.306 through 4.19.*; unaffected 5.4.268 through 5.4.*; unaffected 5.10.209 through 5.10.*; unaffected 5.15.148 through 5.15.*; unaffected 6.1.74 through 6.1.*; unaffected 6.6.13 through 6.6.*; unaffected 6.7.1 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c
- https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50
- https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570
- https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7
- https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea
- https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad
- https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41
- https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c
- https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50
- https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570
- https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7
- https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea
- https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad
- https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41
- https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://security.netapp.com/advisory/ntap-20241227-0006/
No English description supplied.
No references supplied.