Re: [GIT PULL] tracing: Fixes for v6.17

[Nathan Chancellor <nathan@kernel.org>]

On Fri, Aug 22, 2025 at 05:16:37PM -0400, Steven Rostedt wrote:
> On Fri, 22 Aug 2025 17:08:08 -0400
> Steven Rostedt <rostedt@goodmis.org> wrote:
> 
> > > 
> > > If there is any other information I can provide or patches I can test, I
> > > am happy to do so.  
> > 
> > Can you send me your .config file?
> 
> Actually, can you see if this fixes the bug you are seeing?

Yes, it does.

Tested-by: Nathan Chancellor <nathan@kernel.org>

> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index f992a5eb878e..2b570e057ba3 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -4662,7 +4662,8 @@ ftrace_regex_open(struct ftrace_ops *ops, int flag,
>  			iter->hash = alloc_and_copy_ftrace_hash(size_bits, hash);
>  		}
>  	} else {
> -		iter->hash = alloc_and_copy_ftrace_hash(hash->size_bits, hash);
> +		if (hash)
> +			iter->hash = alloc_and_copy_ftrace_hash(hash->size_bits, hash);
>  	}
>  
>  	if (!iter->hash) {
> 
> 
> -- Steve