Richard Henderson <[email protected]> writes:
> On 6/5/20 7:11 AM, Alex Bennée wrote:
>> @@ -467,7 +467,7 @@ abi_long target_mmap(abi_ulong start, abi_ulong len, int
>> prot,
>> * It can fail only on 64-bit host with 32-bit target.
>> * On any other target/host host mmap() handles this error
>> correctly.
>> */
>> - if (!guest_range_valid(start, len)) {
>> + if (end < start || !guest_range_valid(start, len)) {
>> errno = ENOMEM;
>> goto fail;
>> }
>
> Interesting. I was adjusting guest_range_valid tagged pointers yesterday, and
> thought that it looked buggy.
Should be picking this up in guest_range_valid?
--
Alex Bennée
