---
id: CVE-2023-53488
title: 'IB/hfi1: Fix possible panic during hotplug remove'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  IB/hfi1: Fix possible panic during hotplug remove

  During hotplug remove it is possible that the update counters work
  might be pending, and may run after memory has bee…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    5e72f33ddfdb69cb21c1b59d31bbd3498d31b14a
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    bfd727ad8411995218f336ead9f2becfde7f3a89
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    c2145b18740c7e697748e4005ce93a5c683c86a8
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    33c677d1e087e437c7dcaad8d73402cf6add282e
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    918c1e6843b7e81d0e5cf7994f41f28dc34c98b0
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    ac6640f4193d0f5b44269a7f08372909f9a18e5c
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    d32a5e9b825d40c08a43dfbcba007159fed41a5d
  - >-
    Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde <
    4fdfaef71fced490835145631a795497646f4555
  - Linux 4.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:22:19.292450Z'
published: '2025-10-01'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:31:11.689Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53488'
references:
  - url: 'https://git.kernel.org/stable/c/5e72f33ddfdb69cb21c1b59d31bbd3498d31b14a'
  - url: 'https://git.kernel.org/stable/c/bfd727ad8411995218f336ead9f2becfde7f3a89'
  - url: 'https://git.kernel.org/stable/c/c2145b18740c7e697748e4005ce93a5c683c86a8'
  - url: 'https://git.kernel.org/stable/c/33c677d1e087e437c7dcaad8d73402cf6add282e'
  - url: 'https://git.kernel.org/stable/c/918c1e6843b7e81d0e5cf7994f41f28dc34c98b0'
  - url: 'https://git.kernel.org/stable/c/ac6640f4193d0f5b44269a7f08372909f9a18e5c'
  - url: 'https://git.kernel.org/stable/c/d32a5e9b825d40c08a43dfbcba007159fed41a5d'
  - url: 'https://git.kernel.org/stable/c/4fdfaef71fced490835145631a795497646f4555'
tags:
  - cve.org
epss: 0.0016
epssPercentile: 0.05163
ingestedAt: '2026-11-05T22:38:31.802Z'
---

## Overview

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

IB/hfi1: Fix possible panic during hotplug remove

During hotplug remove it is possible that the update counters work
might be pending, and may run after memory has been freed.
Cancel the update counters work before freeing memory.

## Affected

- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 5e72f33ddfdb69cb21c1b59d31bbd3498d31b14a`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < bfd727ad8411995218f336ead9f2becfde7f3a89`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < c2145b18740c7e697748e4005ce93a5c683c86a8`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 33c677d1e087e437c7dcaad8d73402cf6add282e`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 918c1e6843b7e81d0e5cf7994f41f28dc34c98b0`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < ac6640f4193d0f5b44269a7f08372909f9a18e5c`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < d32a5e9b825d40c08a43dfbcba007159fed41a5d`
- `Linux >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 4fdfaef71fced490835145631a795497646f4555`
- `Linux 4.3`

## Remediation

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