Re: [PATCH bpf-next v3] bpf: Clamp trace length in __bpf_get_stack to fix OOB write

[Brahmajit Das]

On 12.11.2025 13:35, David Laight wrote:
> On Tue, 11 Nov 2025 13:42:54 +0530
> Brahmajit Das <listout@xxxxxxxxxxx> wrote:
> 
...snip...
> 
> Please can we have no unnecessary min_t().
> You wouldn't write:
> 	x = (u32)a < (u32)b ? (u32)a : (u32)b;
> 
>     David
>  
> >  	copy_len = trace_nr * elem_size;
> >  
> >  	ips = trace->ip + skip;
> 

Hi David,

Sorry, I didn't quite get that. Would prefer something like:
	trace_nr = (trace_nr <= num_elem) ? trace_nr : num_elem;
The pre-refactor code.

-- 
Regards,
listout