---
id: CVE-2023-53670
title: 'nvme-core: fix dev_pm_qos memleak'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nvme-core: fix dev_pm_qos memleak

  Call dev_pm_qos_hide_latency_tolerance() in the error unwind patch to
  avoid following kmemleak:-

  blktests (master) # kmemleak-clear;…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea <
    e1379e067b9485e5af03399fe3f0d39bccb023ad
  - >-
    Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea <
    7237c26431cc78e5ec3259f4350f3dd58f6a4319
  - >-
    Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea <
    2ed9a89192e3192e5fea7ff6475c8722513f325e
  - >-
    Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea <
    7ed5cf8e6d9bfb6a78d0471317edff14f0f2b4dd
  - Linux 6.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:26:52.207736Z'
published: '2025-10-07'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:31:20.252Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53670'
references:
  - url: 'https://git.kernel.org/stable/c/e1379e067b9485e5af03399fe3f0d39bccb023ad'
  - url: 'https://git.kernel.org/stable/c/7237c26431cc78e5ec3259f4350f3dd58f6a4319'
  - url: 'https://git.kernel.org/stable/c/2ed9a89192e3192e5fea7ff6475c8722513f325e'
  - url: 'https://git.kernel.org/stable/c/7ed5cf8e6d9bfb6a78d0471317edff14f0f2b4dd'
tags:
  - cve.org
epss: 0.0016
epssPercentile: 0.05179
ingestedAt: '2026-11-05T22:38:31.827Z'
---

## Overview

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

nvme-core: fix dev_pm_qos memleak

Call dev_pm_qos_hide_latency_tolerance() in the error unwind patch to
avoid following kmemleak:-

blktests (master) # kmemleak-clear; ./check nvme/044;
blktests (master) # kmemleak-scan ; kmemleak-show
nvme/044 (Test bi-directional authentication)                [passed]
    runtime  2.111s  ...  2.124s
unreferenced object 0xffff888110c46240 (size 96):
  comm "nvme", pid 33461, jiffies 4345365353 (age 75.586s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000069ac2cec>] kmalloc_trace+0x25/0x90
    [<000000006acc66d5>] dev_pm_qos_update_user_latency_tolerance+0x6f/0x100
    [<00000000cc376ea7>] nvme_init_ctrl+0x38e/0x410 [nvme_core]
    [<000000007df61b4b>] 0xffffffffc05e88b3
    [<00000000d152b985>] 0xffffffffc05744cb
    [<00000000f04a4041>] vfs_write+0xc5/0x3c0
    [<00000000f9491baf>] ksys_write+0x5f/0xe0
    [<000000001c46513d>] do_syscall_64+0x3b/0x90
    [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc

## Affected

- `Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea < e1379e067b9485e5af03399fe3f0d39bccb023ad`
- `Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea < 7237c26431cc78e5ec3259f4350f3dd58f6a4319`
- `Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea < 2ed9a89192e3192e5fea7ff6475c8722513f325e`
- `Linux >= f50fff73d620cd6e8f48bc58d4f1c944615a3fea < 7ed5cf8e6d9bfb6a78d0471317edff14f0f2b4dd`
- `Linux 6.0`

## Remediation

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