From: Samuel Thibault <samuel.thiba...@ens-lyon.org>
We properly computed the capped mask size to be put to the application
buffer, but didn't actually used it. Also, we need to return the capped mask
size instead of 0 on success.
Signed-off-by: Samuel Thibault <samuel.thiba...@ens-lyon.org>
Reviewed-by: Laurent Vivier <laur...@vivier.eu>
Message-Id: <20180211174704.27441-1-samuel.thiba...@ens-lyon.org>
Signed-off-by: Laurent Vivier <laur...@vivier.eu>
---
linux-user/syscall.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index effc3a0881..e24f43c4a2 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -10502,7 +10502,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
ret = arg2;
}
- ret = host_to_target_cpu_mask(mask, mask_size, arg3, arg2);
+ if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
+ goto efault;
+ }
}
}
break;
--
2.14.3
