Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e5be15c63804e05b5a94197524023702a259e308 before ec36c134dd020d28e312c2f1766f85525e747aab; affected e5be15c63804e05b5a94197524023702a259e308 before 47aa8fcd5e8b5563af4042a00f25ba89bef8f33d; affected e5be15c63804e05b5a94197524023702a259e308 before 3233d8bf7893550045682192cb227af7fa3defeb; affected e5be15c63804e05b5a94197524023702a259e308 before ec3634ebe23fc3c44ebc67c6d25917300bc68c08; affected e5be15c63804e05b5a94197524023702a259e308 before 30773ea47d41773f9611ffb4ebc9bda9d19a9e7e; affected e5be15c63804e05b5a94197524023702a259e308 before 2cf0005d315549b8d2b940ff96a66c2a889aa795; affected e5be15c63804e05b5a94197524023702a259e308 before 437b5f57732bb4cc32cc9f8895d2010ee9ff521c; affected e5be15c63804e05b5a94197524023702a259e308 before ded85b0c0edd8f45fec88783d7555a5b982449c1 |
| Linux / Linux | affected 2.6.26; unaffected 0 before 2.6.26; 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 6.1.75 through 6.1.*; unaffected 6.6.14 through 6.6.*; unaffected 6.7.2 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab
- https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d
- https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb
- https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08
- https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e
- https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795
- https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c
- https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab
- https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d
- https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb
- https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08
- https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e
- https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795
- https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee9ff521c
- https://git.kernel.org/stable/c/ded85b0c0edd8f45fec88783d7555a5b982449c1
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
No English description supplied.
No references supplied.