On Wed, Oct 02, 2013 at 07:13:19AM +0200, Ingo Molnar wrote: > > * Al Viro <v...@zeniv.linux.org.uk> wrote: > > > On Tue, Oct 01, 2013 at 02:41:58PM -0700, Eric Dumazet wrote: > > > Maybe I am missing something obvious ? > > > > Yes. do_execve_common() starts with unshare_files(); there can be > > no other thread capable of modifying that descriptor table. > > Btw., might the Android Binder: > > drivers/staging/android/binder.c: struct files_struct *files = > proc->files; > ... > drivers/staging/android/binder.c: __fd_install(proc->files, > fd, file); > ... > drivers/staging/android/binder.c: retval = __close_fd(proc->files, > fd); > > violate that assumption?
Not unless your thread has managed to call an ioctl between entering do_execve_common() and calling do_close_on_exec() ;-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
