---
cve: "CVE-2026-43469"
severity: "HIGH"
cvss: 7.5
epss: "38%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-05-08 15:16:59"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T23:54:13+02:00"
---

# CVE-2026-43469

> 7.5 HIGH

## Beschreibung

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

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 5.15.203
- Kernel ≥ 6.1.167
- Kernel ≥ 6.6.130
- Kernel ≥ 6.12.78
- Kernel ≥ 6.18.19
- Kernel ≥ 6.19.9

## Referenzen

- <https://git.kernel.org/stable/c/7ea69259a60a364f56cf4aa9e2eafb588d1c762b>
- <https://git.kernel.org/stable/c/8cb6b5d8296b1f99a8d36849901ebabfe3f749db>
- <https://git.kernel.org/stable/c/74c39a47856bddcde7874f2196a00143b5cd0af9>
- <https://git.kernel.org/stable/c/49f53ee4e25297d886f14e31f355ad1c2735ddfb>
- <https://git.kernel.org/stable/c/8127b5fec04757c2a41ed65bca0b3266968efd3b>
- <https://git.kernel.org/stable/c/dc3ebd7e2d73dbd4d317785735ffa6c4a6384ddf>
- <https://git.kernel.org/stable/c/7b6275c80a0c81c5f8943272292dfe67730ce849>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-43469) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_