---
id: CVE-2023-53051
title: 'dm crypt: add cond_resched() to dmcrypt_write()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dm crypt: add cond_resched() to dmcrypt_write()

  The loop in dmcrypt_write may be running for unbounded amount of time,
  thus we need cond_resched() in it.

  This commit …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    e87cd83f70504f1cd2e428966f353c007d6d2d7f
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    66ff37993dd7e9954b6446237fe2453b380ce40d
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    eb485b7404a281d974bd445ddc5b0b8d5958f371
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    f0eb61b493dbbc32529fbd0d2e945b71b0e47306
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    2c743db1193bf0e76c73d71ede08bd9b96e6c31d
  - >-
    Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 <
    fb294b1c0ba982144ca467a75e7d01ff26304e2b
  - Linux 4.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:15:34.216175Z'
published: '2025-05-02'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:20:56.697Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-53051'
references:
  - url: 'https://git.kernel.org/stable/c/e87cd83f70504f1cd2e428966f353c007d6d2d7f'
  - url: 'https://git.kernel.org/stable/c/7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6'
  - url: 'https://git.kernel.org/stable/c/885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1'
  - url: 'https://git.kernel.org/stable/c/66ff37993dd7e9954b6446237fe2453b380ce40d'
  - url: 'https://git.kernel.org/stable/c/eb485b7404a281d974bd445ddc5b0b8d5958f371'
  - url: 'https://git.kernel.org/stable/c/f0eb61b493dbbc32529fbd0d2e945b71b0e47306'
  - url: 'https://git.kernel.org/stable/c/2c743db1193bf0e76c73d71ede08bd9b96e6c31d'
  - url: 'https://git.kernel.org/stable/c/fb294b1c0ba982144ca467a75e7d01ff26304e2b'
tags:
  - cve.org
epss: 0.00218
epssPercentile: 0.12323
ingestedAt: '2026-11-05T22:38:31.758Z'
---

## Overview

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

dm crypt: add cond_resched() to dmcrypt_write()

The loop in dmcrypt_write may be running for unbounded amount of time,
thus we need cond_resched() in it.

This commit fixes the following warning:

[ 3391.153255][   C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897]
...
[ 3391.387210][   C12] Call trace:
[ 3391.390338][   C12]  blk_attempt_bio_merge.part.6+0x38/0x158
[ 3391.395970][   C12]  blk_attempt_plug_merge+0xc0/0x1b0
[ 3391.401085][   C12]  blk_mq_submit_bio+0x398/0x550
[ 3391.405856][   C12]  submit_bio_noacct+0x308/0x380
[ 3391.410630][   C12]  dmcrypt_write+0x1e4/0x208 [dm_crypt]
[ 3391.416005][   C12]  kthread+0x130/0x138
[ 3391.419911][   C12]  ret_from_fork+0x10/0x18

## Affected

- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < e87cd83f70504f1cd2e428966f353c007d6d2d7f`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 66ff37993dd7e9954b6446237fe2453b380ce40d`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < eb485b7404a281d974bd445ddc5b0b8d5958f371`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < f0eb61b493dbbc32529fbd0d2e945b71b0e47306`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < 2c743db1193bf0e76c73d71ede08bd9b96e6c31d`
- `Linux >= dc2676210c425ee8e5cb1bec5bc84d004ddf4179 < fb294b1c0ba982144ca467a75e7d01ff26304e2b`
- `Linux 4.0`

## Remediation

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