diff options
| author | Israel Rukshin <israelr@mellanox.com> | 2018-12-05 16:54:57 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 14:13:18 +0100 |
| commit | 60e3480e0bbf00ffcec4b1409131cf01b69c7cf1 (patch) | |
| tree | a33b8bf78d644103ff356526f090d9192c66e0cc /drivers/nvme | |
| parent | 07d4f1c4cd57b6ba4b23d243bcb8d1a63316e784 (diff) | |
nvmet-rdma: fix response use after free
[ Upstream commit d7dcdf9d4e15189ecfda24cc87339a3425448d5c ]
nvmet_rdma_release_rsp() may free the response before using it at error
flow.
Fixes: 8407879 ("nvmet-rdma: fix possible bogus dereference under heavy load")
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/rdma.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c index a70b3d24936d..5d8140e58f6f 100644 --- a/drivers/nvme/target/rdma.c +++ b/drivers/nvme/target/rdma.c @@ -524,6 +524,7 @@ static void nvmet_rdma_send_done(struct ib_cq *cq, struct ib_wc *wc) { struct nvmet_rdma_rsp *rsp = container_of(wc->wr_cqe, struct nvmet_rdma_rsp, send_cqe); + struct nvmet_rdma_queue *queue = cq->cq_context; nvmet_rdma_release_rsp(rsp); @@ -531,7 +532,7 @@ static void nvmet_rdma_send_done(struct ib_cq *cq, struct ib_wc *wc) wc->status != IB_WC_WR_FLUSH_ERR)) { pr_err("SEND for CQE 0x%p failed with status %s (%d).\n", wc->wr_cqe, ib_wc_status_msg(wc->status), wc->status); - nvmet_rdma_error_comp(rsp->queue); + nvmet_rdma_error_comp(queue); } } |