Re: [Linux-kernel-mentees] [PATCH v2] infiniband: Prevent uninit-value in ucma_accept()
From: Jason Gunthorpe <jgg@ziepe.ca>
Date: 2020-07-27 14:59:02
Also in:
linux-rdma, lkml
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@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?id=0bce3bb68cb383fce92f78444e3ef77c764b60ad Signed-off-by: Peilin Ye <redacted> --- 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@nvidia.com (local) Jason _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees