On 08/03, Kees Cook wrote:
>
> On Fri, Aug 2, 2013 at 12:27 PM, Oleg Nesterov wrote:
> > @@ -1455,6 +1451,11 @@ static int exec_binprm(struct linux_binprm *bprm)
> > ptrace_event(PTRACE_EVENT_EXEC, old_vpid);
> > current->did_exec = 1;
> > proc_exec_
On Fri, Aug 2, 2013 at 12:27 PM, Oleg Nesterov wrote:
> When search_binary_handler() succeeds it does allow_write_access()
> and fput(), then it clears bprm->file to ensure the caller will not
> do the same.
>
> We can simply move this code to exec_binprm() which is called only
> once. In fact we
When search_binary_handler() succeeds it does allow_write_access()
and fput(), then it clears bprm->file to ensure the caller will not
do the same.
We can simply move this code to exec_binprm() which is called only
once. In fact we could move this to free_bprm() and remove the same
code in do_exec
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