---
id: CVE-2022-50472
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  IB/mad: Don't call to function that might sleep while in atomic context

  Tracepoints are not allowed to sleep, as such the following splat is
  generated due to call to i…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  IB/mad: Don't call to function that might sleep while in atomic context

  Tracepoints are not allowed to sleep, as such the following splat is
  generated due to call to i…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.2, < 5.15.86'
  - 'linux_kernel >= 5.16, < 6.0.16'
  - 'linux_kernel >= 6.1, < 6.1.2'
patched:
  - linux_kernel 6.1.2
published: '2025-10-04'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T22:17:30.830'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-50472'
references:
  - url: 'https://git.kernel.org/stable/c/47e31b86edff36f2d26cbc88ce695d98ff804178'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cea70a572c0cb9728d728cfebe7d5bd485e97513'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d45e6ccb8e98d8339631f32984d345a663e74ce2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fa8a2f3be78e4585996bcf4c15e4504441a4c7a0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00367
epssPercentile: 0.30435
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-15T21:31:12.559331Z'
ingestedAt: '2026-10-15T21:45:11.279Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

IB/mad: Don't call to function that might sleep while in atomic context

Tracepoints are not allowed to sleep, as such the following splat is
generated due to call to ib_query_pkey() in atomic context.

WARNING: CPU: 0 PID: 1888000 at kernel/trace/ring_buffer.c:2492 rb_commit+0xc1/0x220
CPU: 0 PID: 1888000 Comm: kworker/u9:0 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-305.3.1.el8.x86_64 #1
 Hardware name: Red Hat KVM, BIOS 1.13.0-2.module_el8.3.0+555+a55c8938 04/01/2014
 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core]
 RIP: 0010:rb_commit+0xc1/0x220
 RSP: 0000:ffffa8ac80f9bca0 EFLAGS: 00010202
 RAX: ffff8951c7c01300 RBX: ffff8951c7c14a00 RCX: 0000000000000246
 RDX: ffff8951c707c000 RSI: ffff8951c707c57c RDI: ffff8951c7c14a00
 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
 R10: ffff8951c7c01300 R11: 0000000000000001 R12: 0000000000000246
 R13: 0000000000000000 R14: ffffffff964c70c0 R15: 0000000000000000
 FS:  0000000000000000(0000) GS:ffff8951fbc00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f20e8f39010 CR3: 000000002ca10005 CR4: 0000000000170ef0
 Call Trace:
  ring_buffer_unlock_commit+0x1d/0xa0
  trace_buffer_unlock_commit_regs+0x3b/0x1b0
  trace_event_buffer_commit+0x67/0x1d0
  trace_event_raw_event_ib_mad_recv_done_handler+0x11c/0x160 [ib_core]
  ib_mad_recv_done+0x48b/0xc10 [ib_core]
  ? trace_event_raw_event_cq_poll+0x6f/0xb0 [ib_core]
  __ib_process_cq+0x91/0x1c0 [ib_core]
  ib_cq_poll_work+0x26/0x80 [ib_core]
  process_one_work+0x1a7/0x360
  ? create_worker+0x1a0/0x1a0
  worker_thread+0x30/0x390
  ? create_worker+0x1a0/0x1a0
  kthread+0x116/0x130
  ? kthread_flush_work_fn+0x10/0x10
  ret_from_fork+0x35/0x40
 ---[ end trace 78ba8509d3830a16 ]---

## Affected

- `linux_kernel >= 5.2, < 5.15.86`
- `linux_kernel >= 5.16, < 6.0.16`
- `linux_kernel >= 6.1, < 6.1.2`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.1.2`