CVE-2025-22027

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Source
https://cve.org/CVERecord?id=CVE-2025-22027
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-22027.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-22027
Downstream
Related
Published
2025-04-16T14:11:48.210Z
Modified
2026-03-20T12:41:17.645378Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
media: streamzap: fix race between device disconnection and urb callback
Details

In the Linux kernel, the following vulnerability has been resolved:

media: streamzap: fix race between device disconnection and urb callback

Syzkaller has reported a general protection fault at function irraweventstorewithfilter(). This crash is caused by a NULL pointer dereference of dev->raw pointer, even though it is checked for NULL in the same function, which means there is a race condition. It occurs due to the incorrect order of actions in the streamzapdisconnect() function: rcunregisterdevice() is called before usbkillurb(). The dev->raw pointer is freed and set to NULL in rcunregisterdevice(), and only after that usbkillurb() waits for in-progress requests to finish.

If rcunregisterdevice() is called while streamzapcallback() handler is not finished, this can lead to accessing freed resources. Thus rcunregisterdevice() should be called after usbkill_urb().

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/22xxx/CVE-2025-22027.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
8e9e60640067858e8036d4d43bbf725c60613359
Fixed
e11652a6514ec805440c1bb3739e6c6236fffcc7
Fixed
f1d518c0bad01abe83c2df880274cb6a39f4a457
Fixed
30ef7cfee752ca318d5902cb67b60d9797ccd378
Fixed
15483afb930fc2f883702dc96f80efbe4055235e
Fixed
adf0ddb914c9e5b3e50da4c97959e82de2df75c3
Fixed
4db62b60af2ccdea6ac5452fd20e29587ed85f57
Fixed
8760da4b9d44c36b93b6e4cf401ec7fe520015bd
Fixed
f656cfbc7a293a039d6a0c7100e1c846845148c1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-22027.json"