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xprtrdma: Decrement re_receiving on the early exit paths

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Decrement re_receiving on the early exit paths In the event that rpcrdma_post_recvs() fails to create a work request (due to memory allocation failure, say) or otherwise exits early, we should decrement ep->re_receiving before returning. Otherwise we will hang in rpcrdma_xprt_drain() as re_receiving will never reach zero and the completion will never be triggered. On a system with high memory pressure, this can appear as the following hung task: INFO: task kworker/u385:17:8393 blocked for more than 122 seconds. Tainted: G S E 6.19.0 #3 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u385:17 state:D stack:0 pid:8393 tgid:8393 ppid:2 task_flags:0x4248060 flags:0x00080000 Workqueue: xprtiod xprt_autoclose [sunrpc] Call Trace: __schedule+0x48b/0x18b0 ? ib_post_send_mad+0x247/0xae0 [ib_core] schedule+0x27/0xf0 schedule_timeout+0x104/0x110 __wait_for_common+0x98/0x180 ? __pfx_schedule_timeout+0x10/0x10 wait_for_completion+0x24/0x40 rpcrdma_xprt_disconnect+0x444/0x460 [rpcrdma] xprt_rdma_close+0x12/0x40 [rpcrdma] xprt_autoclose+0x5f/0x120 [sunrpc] process_one_work+0x191/0x3e0 worker_thread+0x2e3/0x420 ? __pfx_worker_thread+0x10/0x10 kthread+0x10d/0x230 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x273/0x2b0 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30

Announced Source revision 1
Original source ↗

CVE-2026-43469

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-43469

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "7ea69259a60a364f56cf4aa9e2eafb588d1c762b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "8cb6b5d8296b1f99a8d36849901ebabfe3f749db",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "74c39a47856bddcde7874f2196a00143b5cd0af9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "49f53ee4e25297d886f14e31f355ad1c2735ddfb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "8127b5fec04757c2a41ed65bca0b3266968efd3b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "dc3ebd7e2d73dbd4d317785735ffa6c4a6384ddf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "15788d1d1077ebe029c48842c738876516d85076",
        "lessThan": "7b6275c80a0c81c5f8943272292dfe67730ce849",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/sunrpc/xprtrdma/verbs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.13"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.13",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.203",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.167",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.130",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.78",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.19",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.9",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/sunrpc/xprtrdma/verbs.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-43469

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40082 · Revision 1
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Publisher date
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