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linux-user: Pass last not end to probe_guest_base

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Pass the address of the last byte of the image, rather than
the first address past the last byte.  This avoids overflow
when the last page of the address space is involved.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-03-27 20:31:01 +00:00
parent e506ad6a05
commit a3a67f54f0
3 changed files with 19 additions and 19 deletions
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2
linux-user/flatload.c
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@ -448,7 +448,7 @@ static int load_flat_file(struct linux_binprm * bprm,
* Allocate the address space.
*/
probe_guest_base(bprm->filename, 0,
text_len + data_len + extra + indx_len);
text_len + data_len + extra + indx_len - 1);
/*
* there are a couple of cases here, the separate code/data