CVE-2022-50733
Published Dec 24, 2025
Modified Apr 15, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: usb: idmouse: fix an uninit-value in idmouse_open In idmouse_create_image, if any ftip_command fails, it will go to the reset label. However, this leads to the data in bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check for valid image incurs an uninitialized dereference. Fix this by moving the check before reset label since this check only be valid if the data after bulk_in_buffer[HEADER] has concrete data. Note that this is found by KMSAN, so only kernel compilation is tested.
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References
Other References
https://git.kernel.org/stable/c/1eae30c0113dde7522088231584d62415011a035
https://git.kernel.org/stable/c/20b8c456df584ebb2387dc23d40ebe4ff334417c
https://git.kernel.org/stable/c/6163a5ae097bc78fa26c243fb384537e25610fd7
https://git.kernel.org/stable/c/7dad42032f68718259590b0cc7654e9a95ff9762
https://git.kernel.org/stable/c/adad163d1cff248a5df9f7cec50158e6ca89f33b
https://git.kernel.org/stable/c/b3304a6df957cc89a0590cb505388d659bf3db4c
https://git.kernel.org/stable/c/b8bbae3236ab7dccc66c42bc3f7cdbcfc0786e54
https://git.kernel.org/stable/c/bce2b0539933e485d22d6f6f076c0fcd6f185c4c
https://git.kernel.org/stable/c/f589b667567fde4f81d6e6c40f42b9f2224690ea
Frequently Asked Questions
What is CVE-2022-50733? +
In the Linux kernel, the following vulnerability has been resolved:
usb: idmouse: fix an uninit-value in idmouse_open
In idmouse_create_image, if any ftip_command fails, it will
go to the reset label. However, this leads to the data in
bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check
for valid image incurs an uninitialized dereference.
Fix this by moving the check before reset label since this
check only be valid if the data after bulk_in_buffer[HEADER]
has concrete data.
Note that this is found by KMSAN, so only kernel compilation
is tested.
How do I check if I'm vulnerable to CVE-2022-50733? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.