In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_folio() to wait on writeback Fix netfs_read_folio() to… (CVE-2026-64058)
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_folio() to wait on writeback Fix netfs_read_folio() to wait for an ongoing writeback to complete so that it can trust the dirty flag and whatever is attached to folio->private (folio->private may get cleaned up by the collector before it clears the writeback flag).
AI Analysis
Technical Summary
The Linux kernel vulnerability identified as CVE-2026-64058 involves the netfs_read_folio() function not waiting for an ongoing writeback to complete. This flaw could cause the function to operate on stale or freed data because folio->private may be cleaned up by the collector before the writeback flag is cleared. The patch ensures netfs_read_folio() waits for the writeback to finish, maintaining data integrity and preventing potential kernel memory corruption.
Potential Impact
If unpatched, this vulnerability could lead to kernel memory corruption or use-after-free conditions within the netfs subsystem. Such issues may cause system instability or crashes. There is no indication of known exploits in the wild, and no direct information on privilege escalation or remote exploitation is provided.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel by modifying netfs_read_folio() to wait for writeback completion. Users and administrators should apply the official kernel updates that include this patch once available. Patch status is not yet confirmed in this data — check the vendor or Linux kernel advisories for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_folio() to wait on writeback Fix netfs_read_folio() to… (CVE-2026-64058)
Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_read_folio() to wait on writeback Fix netfs_read_folio() to wait for an ongoing writeback to complete so that it can trust the dirty flag and whatever is attached to folio->private (folio->private may get cleaned up by the collector before it clears the writeback flag).
CVSS v3.1
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel vulnerability identified as CVE-2026-64058 involves the netfs_read_folio() function not waiting for an ongoing writeback to complete. This flaw could cause the function to operate on stale or freed data because folio->private may be cleaned up by the collector before the writeback flag is cleared. The patch ensures netfs_read_folio() waits for the writeback to finish, maintaining data integrity and preventing potential kernel memory corruption.
Potential Impact
If unpatched, this vulnerability could lead to kernel memory corruption or use-after-free conditions within the netfs subsystem. Such issues may cause system instability or crashes. There is no indication of known exploits in the wild, and no direct information on privilege escalation or remote exploitation is provided.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel by modifying netfs_read_folio() to wait for writeback completion. Users and administrators should apply the official kernel updates that include this patch once available. Patch status is not yet confirmed in this data — check the vendor or Linux kernel advisories for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-m5w8-868m-233w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64058"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a92a4a8d598912cb94
Added to database: 07/19/2026, 19:38:17 UTC
Last enriched: 07/19/2026, 19:54:52 UTC
Last updated: 07/20/2026, 19:41:22 UTC
Views: 12
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