ext4: drop extent cache after doing PARTIAL_VALID1 zeroout
CVE-2026-45892 relates to the ext4 filesystem and involves dropping the extent cache after performing a PARTIAL_VALID1 zeroout operation. The vulnerability affects Microsoft products including Azure Linux 3. 0. No CVSS score or detailed technical exploit information is provided. There are no known exploits in the wild, and no patch or remediation details are currently available. The description does not specify the exact impact or exploitation method. Given the limited information, the severity is assessed as medium due to potential filesystem integrity implications.
AI Analysis
Technical Summary
This vulnerability concerns the ext4 filesystem implementation in Microsoft products, specifically involving the handling of the extent cache after a PARTIAL_VALID1 zeroout operation. The extent cache is dropped in this process, which may lead to unexpected behavior or data integrity issues. The affected versions include Microsoft Azure Linux 3.0. No further technical details or exploit information is provided in the source data.
Potential Impact
The impact is not explicitly detailed in the available information. Potentially, improper handling of the extent cache after zeroout operations could lead to filesystem inconsistencies or data corruption. No confirmed exploits or active attacks have been reported. Without additional data, the precise impact remains unclear.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time. Users should monitor vendor advisories for updates.
ext4: drop extent cache after doing PARTIAL_VALID1 zeroout
Description
CVE-2026-45892 relates to the ext4 filesystem and involves dropping the extent cache after performing a PARTIAL_VALID1 zeroout operation. The vulnerability affects Microsoft products including Azure Linux 3. 0. No CVSS score or detailed technical exploit information is provided. There are no known exploits in the wild, and no patch or remediation details are currently available. The description does not specify the exact impact or exploitation method. Given the limited information, the severity is assessed as medium due to potential filesystem integrity implications.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the ext4 filesystem implementation in Microsoft products, specifically involving the handling of the extent cache after a PARTIAL_VALID1 zeroout operation. The extent cache is dropped in this process, which may lead to unexpected behavior or data integrity issues. The affected versions include Microsoft Azure Linux 3.0. No further technical details or exploit information is provided in the source data.
Potential Impact
The impact is not explicitly detailed in the available information. Potentially, improper handling of the extent cache after zeroout operations could lead to filesystem inconsistencies or data corruption. No confirmed exploits or active attacks have been reported. Without additional data, the precise impact remains unclear.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time. Users should monitor vendor advisories for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-45892
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a18ab78e29bf47b50288d0d
Added to database: 5/28/2026, 8:54:16 PM
Last enriched: 5/28/2026, 9:02:39 PM
Last updated: 5/29/2026, 8:08:10 AM
Views: 4
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