Riskcovery

CVE-2026-64217

netfs: Fix overrun check in netfs_extract_user_iter()

State
Published
Severity
7.8 High
Published
Jul 24, 2026
Updated
Aug 5, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 85dd2c8ff368b1446be9febde84afe1d7aec4261 to before 00efe58bbdcc93272d579ca24bfc912563f4a204Affected
  • 85dd2c8ff368b1446be9febde84afe1d7aec4261 to before 96cc3beb2390ba9f9c128c5733c0ccfe450dd4f9Affected
  • 85dd2c8ff368b1446be9febde84afe1d7aec4261 to before afeb32d9bf9aaeea51d0f723a19f14afb73bd94dAffected
  • 85dd2c8ff368b1446be9febde84afe1d7aec4261 to before f48b9157f0f611fa436c360648603d5ded719b12Affected
  • 85dd2c8ff368b1446be9febde84afe1d7aec4261 to before 0ef37eef83fad3542ee06db2940433ae1a92b39dAffected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.6.142 through 6.6.*Not affected
  • 6.12.92 through 6.12.*Not affected
  • 6.18.34 through 6.18.*Not affected
  • 7.0.11 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.