CVE-2026-64157
netfs: Fix partial invalidation of streaming-write folio
Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-write folio In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region. Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend).
INFO
Published Date :
July 19, 2026, 4:17 p.m.
Last Modified :
July 19, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-64157
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the version with the fix.
- Ensure netfs_invalidate_folio correctly handles dirty regions.
- Verify dirty region tracking after invalidation.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-64157.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64157 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-64157
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-64157 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64157 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cce6bfa6ca0e30af9927b0074c97fe6a92f28092', 'lessThan': 'f6b2569ae29b666fd15ff2848684c445ba442a39', 'versionType': 'git'}, {'status': 'affected', 'version': 'cce6bfa6ca0e30af9927b0074c97fe6a92f28092', 'lessThan': '3d9601c029b934b5b6a10f99791467b10eb6b211', 'versionType': 'git'}, {'status': 'affected', 'version': 'cce6bfa6ca0e30af9927b0074c97fe6a92f28092', 'lessThan': '6a3d27116be2c5fb9a03d5cf37c486ac517f3689', 'versionType': 'git'}, {'status': 'affected', 'version': 'cce6bfa6ca0e30af9927b0074c97fe6a92f28092', 'lessThan': '6d91acc7fb85d33ea58fca9b964a32a453937f4b', 'versionType': 'git'}, {'status': 'affected', 'version': 'e2814004138a541110d4b2dc254a8f619c2c4ce0', 'versionType': 'git'}, {'status': 'affected', 'version': '6.10.8', 'lessThan': '6.11', 'versionType': 'semver'}], 'programFiles': ['fs/netfs/misc.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.92', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.34', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.11', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/netfs/misc.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-write folio In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region. Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend). Added Reference https://git.kernel.org/stable/c/3d9601c029b934b5b6a10f99791467b10eb6b211 Added Reference https://git.kernel.org/stable/c/6a3d27116be2c5fb9a03d5cf37c486ac517f3689 Added Reference https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b Added Reference https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39