CVE-2026-23109

MEDIUM EPSS 1.6%
Published Feb 4, 20264mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes() Above the while() loop in wait_sb_inodes(), we document that we must wait for all pages under writeback for data integrity. Consequently, if a mapping, like fuse, traditionally does not have data integrity semantics, there is no need to wait at all; we can simply skip these inodes. This restores fuse back to prior behavior where syncs are no-ops. This fixes a user regression where if a system is running a faulty fuse server that does not reply to issued write requests, this causes wait_sb_inodes() to wait forever.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-835

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥6.16  –  <6.18.8
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/3f4ed5e2b8f111553562507ad6202432c7c57731
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9a49aa302a05e91ca01f69031cb79a0ea33031f
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3f4ed5e2b8f111553562507ad6202432c7c57731
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f9a49aa302a05e91ca01f69031cb79a0ea33031f
    Patch