arch: arc: fix the bug of blt in syscall #23328
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blt is signed comparsion, if r6 is a negative number created by malicious code, it will pass the check, bring a secure risk. use blo (unsinged comparison) to do the check. Signed-off-by: Wayne Ren <[email protected]>
ioannisg
approved these changes
Mar 7, 2020
ruuddw
approved these changes
Mar 7, 2020
This was referenced Mar 16, 2020
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blt is signed comparsion, if r6 is a negative number created by
malicious code, it will pass the check, bring a secure risk.
use blo (unsinged comparison) to do the check.
Signed-off-by: Wayne Ren [email protected]