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>
---
Difference from v1:
- simplify fix
---
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 82b35a6bdf..bcda3362fc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -10493,7 +10493,9 @@ 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;
--
2.15.1
