A vulnerability in the Linux kernel's NTFS3 filesystem driver can cause an infinite loop during file write operations if a certain internal 'valid'… (CVE-2026-45864)
A vulnerability in the Linux kernel's NTFS3 filesystem driver can cause an infinite loop during file write operations if a certain internal 'valid' value does not update correctly. This issue was identified when the 'valid' value remains the same within a processing loop, potentially causing the system to hang. The problem is addressed by adding a check to detect repeated 'valid' values and terminate the loop with an error code.
AI Analysis
Technical Summary
The Linux kernel NTFS3 filesystem driver had a vulnerability where processing a range of valid values could enter an infinite loop if the 'valid' value retrieved did not change and was repeatedly the same. This could cause the kernel task to hang, as reported by syzbot. The fix involves adding a check inside the loop to detect if the 'valid' value is unchanged from the previous iteration, terminating the loop and returning an error (-EINVAL) to prevent the infinite loop condition.
Potential Impact
This vulnerability can cause a denial of service by hanging the kernel task responsible for NTFS3 file write operations, impacting system availability. There is no indication of confidentiality or integrity impact. The CVSS vector indicates local attack vector with low complexity and low privileges required, no user interaction, and only availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix links are provided in the data. Monitor vendor sources for updates and apply any official kernel updates addressing this issue once available.
A vulnerability in the Linux kernel's NTFS3 filesystem driver can cause an infinite loop during file write operations if a certain internal 'valid'… (CVE-2026-45864)
Description
A vulnerability in the Linux kernel's NTFS3 filesystem driver can cause an infinite loop during file write operations if a certain internal 'valid' value does not update correctly. This issue was identified when the 'valid' value remains the same within a processing loop, potentially causing the system to hang. The problem is addressed by adding a check to detect repeated 'valid' values and terminate the loop with an error code.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel NTFS3 filesystem driver had a vulnerability where processing a range of valid values could enter an infinite loop if the 'valid' value retrieved did not change and was repeatedly the same. This could cause the kernel task to hang, as reported by syzbot. The fix involves adding a check inside the loop to detect if the 'valid' value is unchanged from the previous iteration, terminating the loop and returning an error (-EINVAL) to prevent the infinite loop condition.
Potential Impact
This vulnerability can cause a denial of service by hanging the kernel task responsible for NTFS3 file write operations, impacting system availability. There is no indication of confidentiality or integrity impact. The CVSS vector indicates local attack vector with low complexity and low privileges required, no user interaction, and only availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix links are provided in the data. Monitor vendor sources for updates and apply any official kernel updates addressing this issue once available.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-g925-qgm3-hc5p
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-45864"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a3ef7f227e9c79719036e1c
Added to database: 06/26/2026, 22:06:42 UTC
Last enriched: 06/26/2026, 22:51:36 UTC
Last updated: 07/31/2026, 19:24:49 UTC
Views: 8
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