CVE-2022-50733
usb: idmouse: fix an uninit-value in idmouse_open
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.
Produtos afetados
Linux · LinuxQuer saber se a sua infraestrutura está exposta a isto?
Falar com a TrueHacking →Referências
https://git.kernel.org/stable/c/1eae30c0113dde7522088231584d62415011a035https://git.kernel.org/stable/c/20b8c456df584ebb2387dc23d40ebe4ff334417chttps://git.kernel.org/stable/c/6163a5ae097bc78fa26c243fb384537e25610fd7https://git.kernel.org/stable/c/7dad42032f68718259590b0cc7654e9a95ff9762https://git.kernel.org/stable/c/adad163d1cff248a5df9f7cec50158e6ca89f33bhttps://git.kernel.org/stable/c/b3304a6df957cc89a0590cb505388d659bf3db4chttps://git.kernel.org/stable/c/b8bbae3236ab7dccc66c42bc3f7cdbcfc0786e54https://git.kernel.org/stable/c/bce2b0539933e485d22d6f6f076c0fcd6f185c4chttps://git.kernel.org/stable/c/f589b667567fde4f81d6e6c40f42b9f2224690ea