btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure()
CVE-2026-43299 is a vulnerability related to the btrfs filesystem where an assertion failure occurs when the filesystem flips to read-only mode inside the btrfs_repair_io_failure() function. The issue affects version 3.0 of the Microsoft product. No CVSS score or detailed impact information is provided, and no known exploits are reported. There is no information on available patches or vendor advisories regarding remediation.
AI Analysis
Technical Summary
This vulnerability involves an assertion failure triggered when the btrfs filesystem transitions to read-only mode within the btrfs_repair_io_failure() function. The affected product version is 3.0. The vulnerability is documented by the Microsoft Security Response Center but lacks detailed technical or impact data. No patch or mitigation details are provided in the available information.
Potential Impact
The impact details are not specified in the provided data. The vulnerability could potentially cause system instability or denial of service due to assertion failure when the filesystem flips to read-only mode, but this is not explicitly confirmed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure()
Description
CVE-2026-43299 is a vulnerability related to the btrfs filesystem where an assertion failure occurs when the filesystem flips to read-only mode inside the btrfs_repair_io_failure() function. The issue affects version 3.0 of the Microsoft product. No CVSS score or detailed impact information is provided, and no known exploits are reported. There is no information on available patches or vendor advisories regarding remediation.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an assertion failure triggered when the btrfs filesystem transitions to read-only mode within the btrfs_repair_io_failure() function. The affected product version is 3.0. The vulnerability is documented by the Microsoft Security Response Center but lacks detailed technical or impact data. No patch or mitigation details are provided in the available information.
Potential Impact
The impact details are not specified in the provided data. The vulnerability could potentially cause system instability or denial of service due to assertion failure when the filesystem flips to read-only mode, but this is not explicitly confirmed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-43299
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a42ed8827e9c7971995d47d
Added to database: 06/29/2026, 22:11:20 UTC
Last enriched: 06/29/2026, 22:49:50 UTC
Last updated: 07/31/2026, 19:24:46 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.