---
id: CVE-2022-50500
title: >-
  netdevsim: fix memory leak in nsim_drv_probe() when
  nsim_dev_resources_register() failed
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  netdevsim: fix memory leak in nsim_drv_probe() when
  nsim_dev_resources_register() failed


  If some items in nsim_dev_resources_register() fail, memory leak will

  occur. T…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 37923ed6b8cea94d7d76038e2f72c57a0b45daab <
    7c4957fe40e2a628b7cceaf4c9bfb5b701774d05
  - >-
    Linux >= 37923ed6b8cea94d7d76038e2f72c57a0b45daab <
    6b1da9f7126f05e857da6db24c6a04aa7974d644
  - Linux 4.17
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:12:28.981926Z'
published: '2025-10-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:20:49.585Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-50500'
references:
  - url: 'https://git.kernel.org/stable/c/7c4957fe40e2a628b7cceaf4c9bfb5b701774d05'
  - url: 'https://git.kernel.org/stable/c/6b1da9f7126f05e857da6db24c6a04aa7974d644'
tags:
  - cve.org
epss: 0.0014
epssPercentile: 0.03384
ingestedAt: '2026-11-05T22:38:31.743Z'
---

## Overview

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

netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed

If some items in nsim_dev_resources_register() fail, memory leak will
occur. The following is the memory leak information.

unreferenced object 0xffff888074c02600 (size 128):
  comm "echo", pid 8159, jiffies 4294945184 (age 493.530s)
  hex dump (first 32 bytes):
    40 47 ea 89 ff ff ff ff 01 00 00 00 00 00 00 00  @G..............
    ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
  backtrace:
    [<0000000011a31c98>] kmalloc_trace+0x22/0x60
    [<0000000027384c69>] devl_resource_register+0x144/0x4e0
    [<00000000a16db248>] nsim_drv_probe+0x37a/0x1260
    [<000000007d1f448c>] really_probe+0x20b/0xb10
    [<00000000c416848a>] __driver_probe_device+0x1b3/0x4a0
    [<00000000077e0351>] driver_probe_device+0x49/0x140
    [<0000000054f2465a>] __device_attach_driver+0x18c/0x2a0
    [<000000008538f359>] bus_for_each_drv+0x151/0x1d0
    [<0000000038e09747>] __device_attach+0x1c9/0x4e0
    [<00000000dd86e533>] bus_probe_device+0x1d5/0x280
    [<00000000839bea35>] device_add+0xae0/0x1cb0
    [<000000009c2abf46>] new_device_store+0x3b6/0x5f0
    [<00000000fb823d7f>] bus_attr_store+0x72/0xa0
    [<000000007acc4295>] sysfs_kf_write+0x106/0x160
    [<000000005f50cb4d>] kernfs_fop_write_iter+0x3a8/0x5a0
    [<0000000075eb41bf>] vfs_write+0x8f0/0xc80

## Affected

- `Linux >= 37923ed6b8cea94d7d76038e2f72c57a0b45daab < 7c4957fe40e2a628b7cceaf4c9bfb5b701774d05`
- `Linux >= 37923ed6b8cea94d7d76038e2f72c57a0b45daab < 6b1da9f7126f05e857da6db24c6a04aa7974d644`
- `Linux 4.17`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.