On Tue, 11 Apr 2023 10:35:13 +0800 Peng Zhang <zhangpeng.00@xxxxxxxxxxxxx> wrote: > The type of variable pointed to by pivs is unsigned long, but the type > used in sizeof is a pointer type. Change it to unsigned long. Thanks, but there's nothing in this changelog which explains why a -stable backport is being proposed. When fixing a bug, please always describe the user-visible effects of that bug. > --- a/lib/maple_tree.c > +++ b/lib/maple_tree.c > @@ -3255,7 +3255,7 @@ static inline void mas_destroy_rebalance(struct ma_state *mas, unsigned char end > > if (tmp < max_p) > memset(pivs + tmp, 0, > - sizeof(unsigned long *) * (max_p - tmp)); > + sizeof(unsigned long) * (max_p - tmp)); > > if (tmp < mt_slots[mt]) > memset(slots + tmp, 0, sizeof(void *) * (max_s - tmp)); Is there any situation in which sizeof(unsigned long *) != sizeof(unsigned long)?