SB2026100796 - Improper handling of exceptional conditions in Linux kernel btrfs

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Main Vulnerability Database SB2026100796

SB2026100796 - Improper handling of exceptional conditions in Linux kernel btrfs

Published: October 7, 2026

Security Bulletin ID SB2026100796
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper handling of exceptional conditions (CVE-ID: CVE-2026-98269)

CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause persistent filesystem inconsistencies.

The vulnerability exists due to improper handling of inode update failures in btrfs_replace_file_extents() when performing hole punching or reflinking. A local user can perform hole punching or reflinking operations that encounter an inode update failure to cause persistent filesystem inconsistencies.

Exploitation requires the transaction to be committed after the inode update failure.


Remediation

Install update from vendor's website.

References