<Vulnerability name="CVE-2026-46265">
    <DocumentDistribution xml:lang="en">Copyright © 2012 Red Hat, Inc. All rights reserved.</DocumentDistribution>
    <PublicDate>2026-06-03T00:00:00</PublicDate>
    <Bugzilla id="2484481" url="https://bugzilla.redhat.com/show_bug.cgi?id=2484481" xml:lang="en:us">
kernel: RDMA/hns: Fix WQ_MEM_RECLAIM warning
    </Bugzilla>
    <CWE>CWE-821</CWE>
    <Details xml:lang="en:us" source="Mitre">
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.
    </Details>
    <Details xml:lang="en:us" source="Red Hat">
A flaw was found in the Linux kernel's RDMA/hns component. When the sunrpc (Sun Remote Procedure Call) is in use and a reset is triggered, a workqueue dependency issue can occur during Queue Pair (QP) destruction. This can lead to a kernel warning related to memory reclaim, potentially causing system instability or unexpected behavior.
    </Details>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:10">
        <ProductName>Red Hat Enterprise Linux 10</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:6">
        <ProductName>Red Hat Enterprise Linux 6</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:7">
        <ProductName>Red Hat Enterprise Linux 7</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:7">
        <ProductName>Red Hat Enterprise Linux 7</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel-rt</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:8">
        <ProductName>Red Hat Enterprise Linux 8</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:8">
        <ProductName>Red Hat Enterprise Linux 8</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel-rt</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:9">
        <ProductName>Red Hat Enterprise Linux 9</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel</PackageName>
    </PackageState>
    <PackageState cpe="cpe:/o:redhat:enterprise_linux:9">
        <ProductName>Red Hat Enterprise Linux 9</ProductName>
        <FixState>Not affected</FixState>
        <PackageName>kernel-rt</PackageName>
    </PackageState>
    <References xml:lang="en:us">
https://www.cve.org/CVERecord?id=CVE-2026-46265
https://nvd.nist.gov/vuln/detail/CVE-2026-46265
https://lore.kernel.org/linux-cve-announce/2026060337-CVE-2026-46265-492c@gregkh/T
    </References>
</Vulnerability>