diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 39553c81b6..41ded90ee6 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -8490,11 +8490,19 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) case TARGET_NR_dup3: - ret = get_errno(dup3(arg1, arg2, arg3)); + { + int host_flags; + + if ((arg3 & ~TARGET_O_CLOEXEC) != 0) { + return -EINVAL; + } + host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl); + ret = get_errno(dup3(arg1, arg2, host_flags)); if (ret >= 0) { fd_trans_dup(arg1, arg2); } break; + } #endif #ifdef TARGET_NR_getppid /* not on alpha */ case TARGET_NR_getppid: |