Bizzarely, it is possible to set /proc/sys/vm/mmap_min_addr to a value below the host page size. Fix that.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org> Reviewed-by: Ilya Leoshkevich <i...@linux.ibm.com> Acked-by: Helge Deller <del...@gmx.de> Message-Id: <20240102015808.132373-32-richard.hender...@linaro.org> --- linux-user/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux-user/main.c b/linux-user/main.c index 12bb839982..551acf1661 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -901,7 +901,7 @@ int main(int argc, char **argv, char **envp) if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { unsigned long tmp; if (fscanf(fp, "%lu", &tmp) == 1 && tmp != 0) { - mmap_min_addr = tmp; + mmap_min_addr = MAX(tmp, host_page_size); qemu_log_mask(CPU_LOG_PAGE, "host mmap_min_addr=0x%lx\n", mmap_min_addr); } -- 2.34.1