---
id: CVE-2023-53060
title: 'igb: revert rtnl_lock() that causes deadlock'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  igb: revert rtnl_lock() that causes deadlock

  The commit 6faee3d4ee8b ("igb: Add lock to avoid data race") adds
  rtnl_lock to eliminate a false data race shown below

   (…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 5773a1e6e5ba9f62c4573c57878d154fda269bc2 <
    0dabb72b923e17cb3b4ac99ea1adc9ef35116930
  - >-
    Linux >= 2e8a30c1d994d91099fa8762f504b2ac9dce2cf7 <
    7d845e9a485f287181ff81567c3900a8e7ad1e28
  - >-
    Linux >= 55197ba6d64d48f1948e6e1f52482e0e3e38e1bf <
    cd1e320ac0958298c2774605ad050483f33a21f2
  - >-
    Linux >= 0f516dcd1456b18b56a7de0c1f67b8a4aa54c2ef <
    4d2626e10709ff8474ffd1a9db3cf4647569e89c
  - >-
    Linux >= 8ee44abe4cae06713db33e0a3b1e87bfb95b13ef <
    66e5577cabc3d463eea540332727929d0ace41c6
  - >-
    Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 <
    62a64645749926f9d75af82a96440941f22b046f
  - >-
    Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 <
    de91528d8ba274c614a2265077d695c61e31fd43
  - >-
    Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 <
    65f69851e44d71248b952a687e44759a7abb5016
  - Linux 64c0c233a88591bb23569ae12eed7f74e5bd39ce
  - Linux >= 4.14.291 < 4.14.312
  - Linux >= 4.19.256 < 4.19.280
  - Linux >= 5.4.211 < 5.4.240
  - Linux >= 5.10.138 < 5.10.177
  - Linux >= 5.15.63 < 5.15.105
  - Linux >= 5.19.4 < 5.20
  - Linux 6.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:15:54.533850Z'
published: '2025-05-02'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:20:57.628Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53060'
references:
  - url: 'https://git.kernel.org/stable/c/0dabb72b923e17cb3b4ac99ea1adc9ef35116930'
  - url: 'https://git.kernel.org/stable/c/7d845e9a485f287181ff81567c3900a8e7ad1e28'
  - url: 'https://git.kernel.org/stable/c/cd1e320ac0958298c2774605ad050483f33a21f2'
  - url: 'https://git.kernel.org/stable/c/4d2626e10709ff8474ffd1a9db3cf4647569e89c'
  - url: 'https://git.kernel.org/stable/c/66e5577cabc3d463eea540332727929d0ace41c6'
  - url: 'https://git.kernel.org/stable/c/62a64645749926f9d75af82a96440941f22b046f'
  - url: 'https://git.kernel.org/stable/c/de91528d8ba274c614a2265077d695c61e31fd43'
  - url: 'https://git.kernel.org/stable/c/65f69851e44d71248b952a687e44759a7abb5016'
tags:
  - cve.org
epss: 0.00153
epssPercentile: 0.045
ingestedAt: '2026-11-05T22:38:31.761Z'
---

## Overview

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

igb: revert rtnl_lock() that causes deadlock

The commit 6faee3d4ee8b ("igb: Add lock to avoid data race") adds
rtnl_lock to eliminate a false data race shown below

 (FREE from device detaching)      |   (USE from netdev core)
igb_remove                         |  igb_ndo_get_vf_config
 igb_disable_sriov                 |  vf >= adapter->vfs_allocated_count?
  kfree(adapter->vf_data)          |
  adapter->vfs_allocated_count = 0 |
                                   |    memcpy(... adapter->vf_data[vf]

The above race will never happen and the extra rtnl_lock causes deadlock
below

[  141.420169]  <TASK>
[  141.420672]  __schedule+0x2dd/0x840
[  141.421427]  schedule+0x50/0xc0
[  141.422041]  schedule_preempt_disabled+0x11/0x20
[  141.422678]  __mutex_lock.isra.13+0x431/0x6b0
[  141.423324]  unregister_netdev+0xe/0x20
[  141.423578]  igbvf_remove+0x45/0xe0 [igbvf]
[  141.423791]  pci_device_remove+0x36/0xb0
[  141.423990]  device_release_driver_internal+0xc1/0x160
[  141.424270]  pci_stop_bus_device+0x6d/0x90
[  141.424507]  pci_stop_and_remove_bus_device+0xe/0x20
[  141.424789]  pci_iov_remove_virtfn+0xba/0x120
[  141.425452]  sriov_disable+0x2f/0xf0
[  141.425679]  igb_disable_sriov+0x4e/0x100 [igb]
[  141.426353]  igb_remove+0xa0/0x130 [igb]
[  141.426599]  pci_device_remove+0x36/0xb0
[  141.426796]  device_release_driver_internal+0xc1/0x160
[  141.427060]  driver_detach+0x44/0x90
[  141.427253]  bus_remove_driver+0x55/0xe0
[  141.427477]  pci_unregister_driver+0x2a/0xa0
[  141.428296]  __x64_sys_delete_module+0x141/0x2b0
[  141.429126]  ? mntput_no_expire+0x4a/0x240
[  141.429363]  ? syscall_trace_enter.isra.19+0x126/0x1a0
[  141.429653]  do_syscall_64+0x5b/0x80
[  141.429847]  ? exit_to_user_mode_prepare+0x14d/0x1c0
[  141.430109]  ? syscall_exit_to_user_mode+0x12/0x30
[  141.430849]  ? do_syscall_64+0x67/0x80
[  141.431083]  ? syscall_exit_to_user_mode_prepare+0x183/0x1b0
[  141.431770]  ? syscall_exit_to_user_mode+0x12/0x30
[  141.432482]  ? do_syscall_64+0x67/0x80
[  141.432714]  ? exc_page_fault+0x64/0x140
[  141.432911]  entry_SYSCALL_64_after_hwframe+0x72/0xdc

Since the igb_disable_sriov() will call pci_disable_sriov() before
releasing any resources, the netdev core will synchronize the cleanup to
avoid any races. This patch removes the useless rtnl_(un)lock to guarantee
correctness.

## Affected

- `Linux >= 5773a1e6e5ba9f62c4573c57878d154fda269bc2 < 0dabb72b923e17cb3b4ac99ea1adc9ef35116930`
- `Linux >= 2e8a30c1d994d91099fa8762f504b2ac9dce2cf7 < 7d845e9a485f287181ff81567c3900a8e7ad1e28`
- `Linux >= 55197ba6d64d48f1948e6e1f52482e0e3e38e1bf < cd1e320ac0958298c2774605ad050483f33a21f2`
- `Linux >= 0f516dcd1456b18b56a7de0c1f67b8a4aa54c2ef < 4d2626e10709ff8474ffd1a9db3cf4647569e89c`
- `Linux >= 8ee44abe4cae06713db33e0a3b1e87bfb95b13ef < 66e5577cabc3d463eea540332727929d0ace41c6`
- `Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 < 62a64645749926f9d75af82a96440941f22b046f`
- `Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 < de91528d8ba274c614a2265077d695c61e31fd43`
- `Linux >= 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 < 65f69851e44d71248b952a687e44759a7abb5016`
- `Linux 64c0c233a88591bb23569ae12eed7f74e5bd39ce`
- `Linux >= 4.14.291 < 4.14.312`
- `Linux >= 4.19.256 < 4.19.280`
- `Linux >= 5.4.211 < 5.4.240`
- `Linux >= 5.10.138 < 5.10.177`
- `Linux >= 5.15.63 < 5.15.105`
- `Linux >= 5.19.4 < 5.20`
- `Linux 6.0`

## Remediation

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