Linux Kernel WQ_MEM_RECLAIM Warning in RDMA/hns
CVE-2026-46265 Published on June 3, 2026
RDMA/hns: Fix WQ_MEM_RECLAIM warning
In the Linux kernel, the following vulnerability has been resolved:
RDMA/hns: Fix WQ_MEM_RECLAIM warning
When sunrpc is used, if a reset triggered, our wq may lead the
following trace:
workqueue: WQ_MEM_RECLAIM xprtiod:xprt_rdma_connect_worker [rpcrdma]
is flushing !WQ_MEM_RECLAIM hns_roce_irq_workq:flush_work_handle
[hns_roce_hw_v2]
WARNING: CPU: 0 PID: 8250 at kernel/workqueue.c:2644 check_flush_dependency+0xe0/0x144
Call trace:
check_flush_dependency+0xe0/0x144
start_flush_work.constprop.0+0x1d0/0x2f0
__flush_work.isra.0+0x40/0xb0
flush_work+0x14/0x30
hns_roce_v2_destroy_qp+0xac/0x1e0 [hns_roce_hw_v2]
ib_destroy_qp_user+0x9c/0x2b4
rdma_destroy_qp+0x34/0xb0
rpcrdma_ep_destroy+0x28/0xcc [rpcrdma]
rpcrdma_ep_put+0x74/0xb4 [rpcrdma]
rpcrdma_xprt_disconnect+0x1d8/0x260 [rpcrdma]
xprt_rdma_connect_worker+0xc0/0x120 [rpcrdma]
process_one_work+0x1cc/0x4d0
worker_thread+0x154/0x414
kthread+0x104/0x144
ret_from_fork+0x10/0x18
Since QP destruction frees memory, this wq should have the WQ_MEM_RECLAIM.
Products Associated with CVE-2026-46265
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Affected Versions
Linux:- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below 12761bd0ae16a80f237c2a65ab1b1064076cc74a is affected.
- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below 70a5eb757ace5bd627a36f04d871eaf85def424d is affected.
- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below 562c96b1393da2df3ea62173c84117b39da353b9 is affected.
- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below 0cbec8b49270f3f0600b8e3ef5e8f0d233dcea27 is affected.
- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below c5ef9a1bcf5b597695d9c2e6ac452e9f89521862 is affected.
- Version ffd541d45726341c1830ff595fd7352b6d1cfbcd and below c0a26bbd3f99b7b03f072e3409aff4e6ec8af6f6 is affected.
- Version 5.7 is affected.
- Before 5.7 is unaffected.
- Version 6.1.165, <= 6.1.* is unaffected.
- Version 6.6.128, <= 6.6.* is unaffected.
- Version 6.12.75, <= 6.12.* is unaffected.
- Version 6.18.14, <= 6.18.* is unaffected.
- Version 6.19.4, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.