On Sat, Jul 25, 2020 at 10:27:16PM -0400, Peilin Ye wrote: > ucma_accept() is reading uninitialized memory when `in_len` is > less than `offsetof(struct rdma_ucm_accept, ece)`. Fix it. > > Reported-and-tested-by: syzbot+086ab5ca9eafd2379aa6@xxxxxxxxxxxxxxxxxxxxxxxxx > Link: https://syzkaller.appspot.com/bug?id=0bce3bb68cb383fce92f78444e3ef77c764b60ad > Signed-off-by: Peilin Ye <yepeilin.cs@xxxxxxxxx> > --- > Change in v2: > - syzbot has reported this bug as "KMSAN: uninit-value in xa_load". > Add "Reported-and-tested-by:" and "Link:" tags for it. > > drivers/infiniband/core/ucma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Already fixed: https://lore.kernel.org/r/0-v1-d5b86dab17dc+28c25-ucma_syz_min_jgg@xxxxxxxxxx Jason
