Critical severity · published Jul 19, 2026
CVE-2026-64066
netfs: Fix netfs_read_to_pagecache() to pause on subreq failure
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix netfs_read_to_pagecache() to pause on subreq failure
Fix netfs_read_to_pagecache() so that it pauses the generation of new
subrequests if an already-issued subrequest fails.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.12 before 6.18.34; 6.19 before 7.0.11; 7.1; 7.1; 7.1; 7.1 · source: NVD
LI
Linux · Linux
ee4cdf7ba857a894ad1650d6ab77669cbbfa329e before 884c4c4f35e577aba6a0593c80cbea9ca5e6e2b8; ee4cdf7ba857a894ad1650d6ab77669cbbfa329e before 0256e79ce42101ad036edd4205bccca621ea0927; ee4cdf7ba857a894ad1650d6ab77669cbbfa329e before 8a8c0cfdf4658fc5b295b7fc87be56e0d76741f4; 6.12 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64066
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64066
Patch
https://git.kernel.org/stable/c/0256e79ce42101ad036edd4205bccca621ea0927
Patch
https://git.kernel.org/stable/c/884c4c4f35e577aba6a0593c80cbea9ca5e6e2b8
Patch
https://git.kernel.org/stable/c/8a8c0cfdf4658fc5b295b7fc87be56e0d76741f4
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