Messages in this thread | | | From | Li Tuo <> | Subject | [BUG] memstick: rtsx_usb_ms: possible uninitialized-variable access in rtsx_usb_ms_issue_cmd() | Date | Sat, 31 Jul 2021 14:36:49 +0800 |
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Hello,
Our static analysis tool finds a possible uninitialized-variable access in the memstick driver in Linux 5.14.0-rc3:
At the beginning of the function rtsx_usb_ms_issue_cmd(), the variable int_reg is not initialized. If the following condition is true, it remains uninitialized. 469: if (req->long_data)
However, it is accessed in some statements such as: 491: if (int_reg & MS_INT_CMDNK)
I am not quite sure whether this possible uninitialized-variable access is real and how to fix it if it is real. Any feedback would be appreciated, thanks!
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Best wishes, Tuo Li
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