Fix #522 Signed integer overflow #526
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Closed
sodabrew
reviewed
Feb 1, 2023
| @@ -86,7 +86,7 @@ static int php_memc_list_entry(void) { | |||
| /**************************************** | |||
| Payload value flags | |||
| ****************************************/ | |||
| #define MEMC_CREATE_MASK(start, n_bits) (((1 << n_bits) - 1) << start) | |||
| #define MEMC_CREATE_MASK(start, n_bits) (((1U << n_bits) - 1) << start) | |||
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I did a bit of reading, found a note that Coverity might interpret 1U as u_char rather than int: https://community.synopsys.com/s/article/False-positive-for-coverity-sees-1-and-1U-as-8-bit-type-variables
The fix would be to use 1UL to make it explicitly 32-bit (unsigned long)
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but 1UL is 64-bit
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Right, there's a part of my brain that I keep on a shelf for this
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