CVE-2025-22027
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-362 · Race condition
- Record status
- Modified
Affected
- Linux Kernel < 6.1.134
- Linux Kernel < 6.6.87
- Linux Kernel < 6.12.23
- Linux Kernel < 6.13.11
- Linux Kernel < 6.14.2
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-22027.md and follow it. Check whether this project is affected by CVE-2025-22027. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e
- https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378
- https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57
- https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd
- https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3
- https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7
- https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457
- https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1
References
- https://git.kernel.org/stable/c/15483afb930fc2f883702dc96f80efbe4055235e
- https://git.kernel.org/stable/c/30ef7cfee752ca318d5902cb67b60d9797ccd378
- https://git.kernel.org/stable/c/4db62b60af2ccdea6ac5452fd20e29587ed85f57
- https://git.kernel.org/stable/c/8760da4b9d44c36b93b6e4cf401ec7fe520015bd
- https://git.kernel.org/stable/c/adf0ddb914c9e5b3e50da4c97959e82de2df75c3
- https://git.kernel.org/stable/c/e11652a6514ec805440c1bb3739e6c6236fffcc7
- https://git.kernel.org/stable/c/f1d518c0bad01abe83c2df880274cb6a39f4a457
- https://git.kernel.org/stable/c/f656cfbc7a293a039d6a0c7100e1c846845148c1
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html