diff options
Diffstat (limited to 'src/process')
| -rw-r--r-- | src/process/posix_spawn.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c index 5aaf829d..306faa05 100644 --- a/src/process/posix_spawn.c +++ b/src/process/posix_spawn.c @@ -101,6 +101,10 @@ static int child(void *args_vp) break; case FDOP_DUP2: fd = op->srcfd; + if (fd == p) { + ret = -EBADF; + goto fail; + } if (fd != op->fd) { if ((ret=__sys_dup2(fd, op->fd))<0) goto fail; |