rtrs_client L1783: : Resolving route failed, err: -19 ================================================================== BUG: KASAN: null-ptr-deref in do_trace_event_raw_event_rtrs_clt_conn_class drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:58 [inline] BUG: KASAN: null-ptr-deref in trace_event_raw_event_rtrs_clt_conn_class+0x21c/0x408 drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:36 Read of size 255 at addr 0000000000000000 by task kworker/u4:7/5075 CPU: 0 PID: 5075 Comm: kworker/u4:7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: rdma_cm cma_work_handler Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 print_report+0x40/0x68 mm/kasan/report.c:423 kasan_report+0xa8/0xfc mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x258/0x290 mm/kasan/generic.c:189 memcpy+0x48/0x90 mm/kasan/shadow.c:65 do_trace_event_raw_event_rtrs_clt_conn_class drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:58 [inline] trace_event_raw_event_rtrs_clt_conn_class+0x21c/0x408 drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:36 __traceiter_rtrs_rdma_error_recovery+0x74/0xc8 drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:78 trace_rtrs_rdma_error_recovery drivers/infiniband/ulp/rtrs/rtrs-clt-trace.h:78 [inline] rtrs_rdma_error_recovery+0x55c/0x62c drivers/infiniband/ulp/rtrs/rtrs-clt.c:309 rtrs_clt_rdma_cm_handler+0x1118/0x179c drivers/infiniband/ulp/rtrs/rtrs-clt.c:2041 cma_cm_event_handler+0xb8/0x400 drivers/infiniband/core/cma.c:2137 cma_work_handler+0x220/0x4dc drivers/infiniband/core/cma.c:2992 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 ==================================================================