diff options
Diffstat (limited to 'nsswitch/wb_common.c')
| -rw-r--r-- | nsswitch/wb_common.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/nsswitch/wb_common.c b/nsswitch/wb_common.c index d0dfcb8bbfb..75ce585a863 100644 --- a/nsswitch/wb_common.c +++ b/nsswitch/wb_common.c @@ -240,6 +240,12 @@ static int winbind_named_pipe_sock(const char *dir) switch (errno) { case EINPROGRESS: + + if (fd < 0 || fd >= FD_SETSIZE) { + errno = EBADF; + goto error_out; + } + FD_ZERO(&w_fds); FD_SET(fd, &w_fds); tv.tv_sec = CONNECT_TIMEOUT - wait_time; @@ -384,6 +390,12 @@ int winbind_write_sock(void *buffer, int count, int recursing, int need_priv) struct timeval tv; fd_set r_fds; + if (winbindd_fd < 0 || winbindd_fd >= FD_SETSIZE) { + errno = EBADF; + winbind_close_sock(); + return -1; + } + /* Catch pipe close on other end by checking if a read() call would not block by calling select(). */ @@ -444,6 +456,11 @@ int winbind_read_sock(void *buffer, int count) struct timeval tv; fd_set r_fds; + if (winbindd_fd < 0 || winbindd_fd >= FD_SETSIZE) { + errno = EBADF; + winbind_close_sock(); + return -1; + } /* Catch pipe close on other end by checking if a read() call would not block by calling select(). */ |