rtrs_client L2019: <s+>: CM error (CM event: address error, err: -19)
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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/u4:2/39

CPU: 0 PID: 39 Comm: kworker/u4:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
Workqueue: ib_addr process_one_req
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
 addr_handler+0x258/0x464 drivers/infiniband/core/cma.c:3499
 process_one_req+0x268/0x454 drivers/infiniband/core/addr.c:632
 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
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