diff options
| author | Artem Chernyshev | 2023-09-18 16:56:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-10-06 14:56:41 +0200 |
| commit | 51fa66024a5eabf270164f2dc82a48ffb35a12e9 (patch) | |
| tree | 6b0daf4fb81975ce9ee6a5d825a3472f07162adc /net/rds | |
| parent | 2f0acb0736ecc3eb85dc80ad2790d634dcb10b58 (diff) | |
net: rds: Fix possible NULL-pointer dereference
[ Upstream commit f1d95df0f31048f1c59092648997686e3f7d9478 ]
In rds_rdma_cm_event_handler_cmn() check, if conn pointer exists
before dereferencing it as rdma_set_service_type() argument
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: fd261ce6a30e ("rds: rdma: update rdma transport for tos")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/rds')
| -rw-r--r-- | net/rds/rdma_transport.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c index d36f3f6b4351..b15cf316b23a 100644 --- a/net/rds/rdma_transport.c +++ b/net/rds/rdma_transport.c @@ -86,11 +86,13 @@ static int rds_rdma_cm_event_handler_cmn(struct rdma_cm_id *cm_id, break; case RDMA_CM_EVENT_ADDR_RESOLVED: - rdma_set_service_type(cm_id, conn->c_tos); - rdma_set_min_rnr_timer(cm_id, IB_RNR_TIMER_000_32); - /* XXX do we need to clean up if this fails? */ - ret = rdma_resolve_route(cm_id, - RDS_RDMA_RESOLVE_TIMEOUT_MS); + if (conn) { + rdma_set_service_type(cm_id, conn->c_tos); + rdma_set_min_rnr_timer(cm_id, IB_RNR_TIMER_000_32); + /* XXX do we need to clean up if this fails? */ + ret = rdma_resolve_route(cm_id, + RDS_RDMA_RESOLVE_TIMEOUT_MS); + } break; case RDMA_CM_EVENT_ROUTE_RESOLVED: |