On 04/18/19 at 11:41P, WANG Chao wrote: > A left over pfn (because we don't clear) at ca->array[n] can be a match > in __find_elem. Later it'd cause a memmove size overflow in del_elem. > > Signed-off-by: WANG Chao <chao.w...@ucloud.cn> > --- > drivers/ras/cec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c > index 2d9ec378a8bc..2e0bf1269c31 100644 > --- a/drivers/ras/cec.c > +++ b/drivers/ras/cec.c > @@ -206,7 +206,7 @@ static int __find_elem(struct ce_array *ca, u64 pfn, > unsigned int *to) > > this_pfn = PFN(ca->array[min]); > > - if (this_pfn == pfn) > + if (this_pfn == pfn && ca->n > min) > return min; > > return -ENOKEY;
Any thought on this one?
