CVE - CVE-2022-49968

CVE-ID
CVE-2022-49968	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: ieee802154/adf7242: defer destroy_workqueue call There is a possible race condition (use-after-free) like below (FREE) \| (USE) adf7242_remove \| adf7242_channel cancel_delayed_work_sync \| destroy_workqueue (1) \| adf7242_cmd_rx \| mod_delayed_work (2) \| The root cause for this race is that the upper layer (ieee802154) is unaware of this detaching event and the function adf7242_channel can be called without any checks. To fix this, we can add a flag write at the beginning of adf7242_remove and add flag check in adf7242_channel. Or we can just defer the destructive operation like other commit 3e0588c291d6 ("hamradio: defer ax25 kfree after unregister_netdev") which let the ieee802154_unregister_hw() to handle the synchronization. This patch takes the second option. runs")
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/15f3b89bd521d5770d36a61fc04a77c293138ba6 URL:https://git.kernel.org/stable/c/15f3b89bd521d5770d36a61fc04a77c293138ba6 MISC:https://git.kernel.org/stable/c/23a29932715ca43bceb2eae1bdb770995afe7271 URL:https://git.kernel.org/stable/c/23a29932715ca43bceb2eae1bdb770995afe7271 MISC:https://git.kernel.org/stable/c/9f8558c5c642c62c450c98c99b7d18a709fff485 URL:https://git.kernel.org/stable/c/9f8558c5c642c62c450c98c99b7d18a709fff485 MISC:https://git.kernel.org/stable/c/afe7116f6d3b888778ed6d95e3cf724767b9aedf URL:https://git.kernel.org/stable/c/afe7116f6d3b888778ed6d95e3cf724767b9aedf MISC:https://git.kernel.org/stable/c/bed12d7531df1417fc92c691999ff95e03835008 URL:https://git.kernel.org/stable/c/bed12d7531df1417fc92c691999ff95e03835008 MISC:https://git.kernel.org/stable/c/dede80aaf01f4b6e8657d23726cb4a3da226ec4c URL:https://git.kernel.org/stable/c/dede80aaf01f4b6e8657d23726cb4a3da226ec4c
Assigning CNA
kernel.org
Date Record Created
20250618	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250618)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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