ext4: drop extent cache when splitting extent fails
CVE-2026-45899 is a vulnerability related to the ext4 filesystem where the extent cache is dropped when splitting an extent fails. The information provided is limited and does not include technical details about exploitation or impact. There is no CVSS score available, and no known exploits in the wild have been reported. The affected products include Microsoft and Azure Linux 3. 0. No patch or remediation information is provided, and the vulnerability does not appear to affect cloud services directly.
AI Analysis
Technical Summary
This vulnerability involves the ext4 filesystem's handling of extent caches during extent splitting operations. Specifically, when splitting an extent fails, the extent cache is dropped, which may lead to potential issues in filesystem integrity or stability. The advisory is from the Microsoft Security Response Center and affects Microsoft and Azure Linux 3.0 versions. No further technical details or exploitation methods are provided in the available data.
Potential Impact
The impact details are not explicitly described in the available information. The dropping of the extent cache upon failure to split an extent could potentially affect filesystem stability or data integrity, but no confirmed impact or exploitation in the wild is reported.
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.
ext4: drop extent cache when splitting extent fails
Description
CVE-2026-45899 is a vulnerability related to the ext4 filesystem where the extent cache is dropped when splitting an extent fails. The information provided is limited and does not include technical details about exploitation or impact. There is no CVSS score available, and no known exploits in the wild have been reported. The affected products include Microsoft and Azure Linux 3. 0. No patch or remediation information is provided, and the vulnerability does not appear to affect cloud services directly.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the ext4 filesystem's handling of extent caches during extent splitting operations. Specifically, when splitting an extent fails, the extent cache is dropped, which may lead to potential issues in filesystem integrity or stability. The advisory is from the Microsoft Security Response Center and affects Microsoft and Azure Linux 3.0 versions. No further technical details or exploitation methods are provided in the available data.
Potential Impact
The impact details are not explicitly described in the available information. The dropping of the extent cache upon failure to split an extent could potentially affect filesystem stability or data integrity, but no confirmed impact or exploitation in the wild is reported.
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-2026-45899
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a18ab95e29bf47b50289759
Added to database: 5/28/2026, 8:54:45 PM
Last enriched: 5/28/2026, 9:15:08 PM
Last updated: 5/29/2026, 8:26:25 AM
Views: 4
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