test: fix integer overflow in shift expressions in misc.c - #3784
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test: fix integer overflow in shift expressions in misc.c#3784bellis-ibm wants to merge 1 commit into
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Several __u8, __u16, and bool values are shifted left by 16, 24, or 31 bits without first being promoted to uint32_t. In C, these shifts happen on signed int, causing signed integer overflow (undefined behaviour) when the result sets bit 31 or exceeds 16 bits. Cast each shift operand to uint32_t so the arithmetic stays in the unsigned domain, matching the pattern used elsewhere in the codebase. Fixes Coverity CIDs 557419, 557377, 557460, 557498, 557509 (INTEGER_OVERFLOW). Signed-off-by: Brooke Ellis <Brooke.Ellis@ibm.com>
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Several __u8, __u16, and bool values are shifted left by 16, 24, or
31 bits without first being promoted to uint32_t. In C, these shifts
happen on signed int, causing signed integer overflow (undefined
behaviour) when the result sets bit 31 or exceeds 16 bits.
Cast each shift operand to uint32_t so the arithmetic stays in the
unsigned domain, matching the pattern used elsewhere in the codebase.
Fixes Coverity CIDs 557419, 557377, 557460, 557498, 557509
(INTEGER_OVERFLOW).
Signed-off-by: Brooke Ellis Brooke.Ellis@ibm.com