[PATCH] gdb: fix off-by-one error in quirk_rust_enum

[Simon Marchi]

On 2020-05-19 2:18 p.m., Tom Tromey wrote:
>>>>>> "Simon" == Simon Marchi via Gdb-patches <gdb-patches@sourceware.org> writes:
> 
> Simon> Found by inspection, so I don't have a test for it (I don't think it
> Simon> would be easy to have this bug cause a failure reliably).
> 
> Simon> We allocate space for N fields into `new_fields`, then memcpy N fields
> Simon> at `new_fields + 1`.  This overflows the allocated buffer by one field.
> 
> Simon> Fix it by allocating `N + 1` fields.
> 
> Simon> gdb/ChangeLog:
> 
> Simon> 	* dwarf2/read.c (quirk_rust_enum): Allocate enough fields.
> 
> Looks good.  Thank you.
> 
> Tom
> 

Thanks, pushed.

Simon