CVE-2022-50044
MediumIn 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.
CVSS 3.1 score
4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-362CVE-2022-50044 is a Race Condition vulnerability
What is Race Condition?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE
Affected versions
Linux kernel versions
5.11
and later are affected. Fixed in
5.15.63,
5.19.4,
6.0
and their respective stable series.
References
The following references provide additional information about CVE-2022-50044 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/68a838b84effb7b57ba7d50b1863fc6ae35a54ce
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PatchKernel patch commithttps://git.kernel.org/stable/c/a1a75f78a2937567946b1b756f82462874b5ca20
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PatchKernel patch commithttps://git.kernel.org/stable/c/c682fb70a7dfc25b848a4ff3a385b0471b470606
Frequently asked questions
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What is CVE-2022-50044?
CVE-2022-50044 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 5.11 onward and has been patched in 5.15.63, 5.19.4 and 6.0. CVE-2022-50044 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-50044?
CVE-2022-50044 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-50044?
Yes — CVE-2022-50044 has been patched. Fixed versions include 5.15.63, 5.19.4 and 6.0. If you are running Linux kernel 5.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50044 actively exploited?
No — CVE-2022-50044 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Race Condition (CWE-362)?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →