---
id: CVE-2026-89833
title: "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n  - …"
summary: "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()\n\nThere is potential deadloop in race condition:\n\nThread A\t\t\t\tThread B\n- fsync\n - f2fs_do_sync_file\n  - …"
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 608514deba38c8611ad330d6a3c8e2b9a1f68e4b <
    161513f53e4ac90fd356433bdf8e31e6adeb92af
  - >-
    Linux >= 608514deba38c8611ad330d6a3c8e2b9a1f68e4b <
    905411f6504876d268ba8dafc8e75367782da4b7
  - >-
    Linux >= 608514deba38c8611ad330d6a3c8e2b9a1f68e4b <
    ce366bfa821ec81dd45bde547ee31e659306cc61
  - Linux 4.7
published: '2026-09-16'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T11:16:50.080'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89833'
references:
  - url: 'https://git.kernel.org/stable/c/161513f53e4ac90fd356433bdf8e31e6adeb92af'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/905411f6504876d268ba8dafc8e75367782da4b7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ce366bfa821ec81dd45bde547ee31e659306cc61'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.999Z'
epss: 0.00206
epssPercentile: 0.09482
---

## Overview

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

f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()

There is potential deadloop in race condition:

Thread A				Thread B
- fsync
 - f2fs_do_sync_file
  - f2fs_fsync_node_pages
   - last_fsync_dnode
    - folio_get(last_folio)
					- f2fs_setattr
					 - f2fs_truncate
					  - f2fs_truncate_blocks
					   - f2fs_do_truncate_blocks
					    - f2fs_truncate_inode_blocks
					     - truncate_dnode
					      - truncate_node
					       - invalidate_mapping_pages
					        - folio->mapping = NULL
   - is_node_folio alwasy return false
   - atomic && !marked is always true,
     then goto retry

## Remediation

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