CVE-2022-50136
Estado: ModificadaMedia (5.5)—
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:
Detalles técnicos trazas, registros y código del informe original
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>
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.61%
- Percentil entre todas las CVEs puntuadas: 47
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/0066246d2d7e2619f3ecf3cf07333c59e6e7d84d
- https://git.kernel.org/stable/c/11edf0bba15ea9df49478affec7974f351bb2f6e
- https://git.kernel.org/stable/c/1434de50a5d9dab91c8ce031bc23b3e2178379c5
- https://git.kernel.org/stable/c/3056fc6c32e613b760422b94c7617ac9a24a4721
- https://git.kernel.org/stable/c/9ade92ddaf2347fb34298c02080caaa3cdd7c27b
- https://git.kernel.org/stable/c/f6e26e1a5f600b760dc32135d3fac846eabe09e7
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event\n\nIf siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't\nbeen received completely, and should not report IW_CM_EVENT_CONNECT_REPLY\nin this case. This may trigger a call trace in iw_cm. A simple way to\ntrigger this:\n server: ib_send_lat\n client: ib_send_lat -R <server_ip>\n\nThe call trace looks like this:\n\n kernel BUG at drivers/infiniband/core/iwcm.c:894!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n <...>\n Workqueue: iw_cm_wq cm_work_handler [iw_cm]\n Call Trace:\n <TASK>\n cm_work_handler+0x1dd/0x370 [iw_cm]\n process_one_work+0x1e2/0x3b0\n worker_thread+0x49/0x2e0\n ? rescuer_thread+0x370/0x370\n kthread+0xe5/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30\n </TASK>"
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/siw: Se corrige el evento IW_CM_EVENT_CONNECT_REPLY reportado duplicado. Si siw_recv_mpa_rr devuelve -EAGAIN, significa que la respuesta de MPA no se ha recibido completamente y, en este caso, no debería reportar IW_CM_EVENT_CONNECT_REPLY. Esto podría activar un seguimiento de llamadas en iw_cm. Una forma sencilla de activarlo: servidor: ib_send_lat cliente: ib_send_lat -R . El seguimiento de llamadas se ve así: kernel BUG en drivers/infiniband/core/iwcm.c:894! Código de operación no válido: 0000 [#1] PREEMPT SMP NOPTI <...> Cola de trabajo: iw_cm_wq cm_work_handler [iw_cm] Rastreo de llamadas: 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 "
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