CVE-2022-50044
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-06-18

Last updated on: 2025-11-13

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: start MHI channel after endpoit creation MHI channel may generates event/interrupt right after enabling. It may leads to 2 race conditions issues. 1) Such event may be dropped by qcom_mhi_qrtr_dl_callback() at check: if (!qdev || mhi_res->transaction_status) return; Because dev_set_drvdata(&mhi_dev->dev, qdev) may be not performed at this moment. In this situation qrtr-ns will be unable to enumerate services in device. --------------------------------------------------------------- 2) Such event may come at the moment after dev_set_drvdata() and before qrtr_endpoint_register(). In this case kernel will panic with accessing wrong pointer at qcom_mhi_qrtr_dl_callback(): rc = qrtr_endpoint_post(&qdev->ep, mhi_res->buf_addr, mhi_res->bytes_xferd); Because endpoint is not created yet. -------------------------------------------------------------- So move mhi_prepare_for_transfer_autoqueue after endpoint creation to fix it.
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Meta Information
Published
2025-06-18
Last Modified
2025-11-13
Generated
2026-05-07
AI Q&A
2025-06-18
EPSS Evaluated
2026-05-05
NVD
CVE-2022-50044
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
linux linux_kernel 6.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel's net: qrtr component involves race conditions caused by the MHI channel generating events or interrupts immediately after enabling. Specifically, events may be dropped or cause a kernel panic because certain device data or endpoints are not yet properly initialized when the events occur. This happens due to timing issues between setting driver data and registering endpoints, leading to failures in service enumeration or kernel crashes.


How can this vulnerability impact me? :

The vulnerability can cause the kernel to panic due to accessing invalid pointers, leading to system crashes. Additionally, it can prevent the qrtr-ns from enumerating services on the device, potentially disrupting communication or functionality relying on these services.


What immediate steps should I take to mitigate this vulnerability?

Update the Linux kernel to a version where the fix has been applied. The fix involves moving mhi_prepare_for_transfer_autoqueue after endpoint creation to prevent race conditions that can cause kernel panic or service enumeration failure.


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