CVE-2025-22027
"Streamzap USB Device NULL Pointer Dereference Vulnerability"
Description
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 ir_raw_event_store_with_filter(). 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 streamzap_disconnect() function: rc_unregister_device() is called before usb_kill_urb(). The dev->raw pointer is freed and set to NULL in rc_unregister_device(), and only after that usb_kill_urb() waits for in-progress requests to finish. If rc_unregister_device() is called while streamzap_callback() handler is not finished, this can lead to accessing freed resources. Thus rc_unregister_device() should be called after usb_kill_urb(). Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
INFO
Published Date :
April 16, 2025, 3:15 p.m.
Last Modified :
May 6, 2025, 4:45 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2025-22027 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-22027.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-22027 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-22027 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
May. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-362 Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.13.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.14 up to (excluding) 6.14.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.87 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.36 up to (excluding) 6.1.134 Added Reference Type kernel.org: https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7 Added Reference https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 16, 2025
Action Type Old Value New Value Added Description 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 ir_raw_event_store_with_filter(). 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 streamzap_disconnect() function: rc_unregister_device() is called before usb_kill_urb(). The dev->raw pointer is freed and set to NULL in rc_unregister_device(), and only after that usb_kill_urb() waits for in-progress requests to finish. If rc_unregister_device() is called while streamzap_callback() handler is not finished, this can lead to accessing freed resources. Thus rc_unregister_device() should be called after usb_kill_urb(). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Added Reference https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e Added Reference https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378 Added Reference https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57 Added Reference https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd Added Reference https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3 Added Reference https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-22027 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-22027
weaknesses.