On Sun, 13 Sep 2026 20:45:54 +0000, Sashiko AI review wrote:
> This isn't a bug introduced by this patch, but while reviewing
> trace_events_hist.c, I noticed a potential memory leak of var_ref
> hist_field objects when a variable is referenced 3 or more times.
Already fixed in mainline, by 4bddcb346a6c ("tracing: Free histogram var
refs regardless of how often they are referenced"). It removed both halves
of this: the get_hist_field(ref_field) in create_var_ref(), and the
refcount test in __destroy_hist_field() that the quoted code relies on.
At 22098763a10d, __destroy_hist_field() has no refcount left at all.
That commit merged the same day as this review, so the baseline predates
it.
