CVE-2026-64217

high

Description

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix overrun check in netfs_extract_user_iter() Fix netfs_extract_user_iter() so that if iov_iter_extract_pages() overfills pages[], then those pages don't get included in the iterator constructed at the end of the function. If there was an overfill, memory corruption has already happened.

References

https://git.kernel.org/stable/c/f48b9157f0f611fa436c360648603d5ded719b12

https://git.kernel.org/stable/c/afeb32d9bf9aaeea51d0f723a19f14afb73bd94d

https://git.kernel.org/stable/c/96cc3beb2390ba9f9c128c5733c0ccfe450dd4f9

https://git.kernel.org/stable/c/0ef37eef83fad3542ee06db2940433ae1a92b39d

https://git.kernel.org/stable/c/00efe58bbdcc93272d579ca24bfc912563f4a204

Details

Source: Mitre, NVD

Published: 2026-07-24

Updated: 2026-07-24

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00168