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CVE-2026-64068

36
FAUCET Score

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing locking around retry adding new subreqs Fix netfs_retry_read_subrequests() and netfs_retry_write_stream() to take the appropriate lock when adding extra subrequests into stream->subrequests.

First published: Jul 19, 2026Last modified: Jul 20, 2026

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
6.10CNA affecteddefault affected
LinuxLinux
>= 288ace2f57c9d06dd2e42bd80d03747d879a4068, < 393f3f0d7353a94b1e0bc4ca89c683fe983e5fd2, >= 288ace2f57c9d06dd2e42bd80d03747d879a4068, < cce18c263e9623872327ba3c956012f73c1179ccCNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 7th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (resolute)Fixed in: 7.0.0-1010.10
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (resolute)Fixed in: 7.0.0-1008.8
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (resolute)Fixed in: 7.0.0-1010.10
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fde (resolute)Fixed in: 7.0.0-1009.9

Vendor Advisories (2)

ubuntuUSN-8603-1

Linux kernel (Azure) vulnerabilities

Jul 24, 2026
ubuntuUSN-8593-1

Linux kernel vulnerabilities

Jul 23, 2026

References

git.kernel.org / stable/c/393f3f0d7353a94b1e0bc4ca89c683fe983e5fd2
git.kernel.org / stable/c/cce18c263e9623872327ba3c956012f73c1179cc