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| author | Richard Henderson <richard.henderson@linaro.org> | 2024-01-02 12:58:06 +1100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-02-29 11:35:37 -1000 |
| commit | 78b79b2cb349114f1b3584b67f94433dd08ba05e (patch) | |
| tree | f857fe3261f4255973ef7f829ed17f83ee2e09d6 | |
| parent | a575230f95cf6b05e5ba97f5f52e33b0878bc0aa (diff) | |
linux-user: Bound mmap_min_addr by host page size
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.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20240102015808.132373-32-richard.henderson@linaro.org>
| -rw-r--r-- | linux-user/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); } |