CVE-2023-52445

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Source
https://cve.org/CVERecord?id=CVE-2023-52445
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52445.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-52445
Downstream
Related
Published
2024-02-22T16:21:37.784Z
Modified
2026-03-13T07:48:01.088906Z
Summary
media: pvrusb2: fix use after free on context disconnection
Details

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 pvr2contextthreadfunc function, which may call pvr2contextdestroy and thus call kfree() on the context object. However, that might happen before the usb hubevent 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52445.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
e5be15c63804e05b5a94197524023702a259e308
Fixed
ec36c134dd020d28e312c2f1766f85525e747aab
Fixed
47aa8fcd5e8b5563af4042a00f25ba89bef8f33d
Fixed
3233d8bf7893550045682192cb227af7fa3defeb
Fixed
ec3634ebe23fc3c44ebc67c6d25917300bc68c08
Fixed
30773ea47d41773f9611ffb4ebc9bda9d19a9e7e
Fixed
2cf0005d315549b8d2b940ff96a66c2a889aa795
Fixed
437b5f57732bb4cc32cc9f8895d2010ee9ff521c
Fixed
ded85b0c0edd8f45fec88783d7555a5b982449c1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52445.json"