Riskcovery

CVE-2024-41027

Fix userfaultfd_api to return EINVAL as expected

State
Published
Severity
Not scored
Published
Jul 29, 2024
Updated
May 11, 2026
Reserved
Jul 12, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

Fix userfaultfd_api to return EINVAL as expected

Currently if we request a feature that is not set in the Kernel config we fail silently and return all the available features. However, the man page indicates we should return an EINVAL.

We need to fix this issue since we can end up with a Kernel warning should a program request the feature UFFD_FEATURE_WP_UNPOPULATED on a kernel with the config not set with this feature.

[ 200.812896] WARNING: CPU: 91 PID: 13634 at mm/memory.c:1660 zap_pte_range+0x43d/0x660 [ 200.820738] Modules linked in: [ 200.869387] CPU: 91 PID: 13634 Comm: userfaultfd Kdump: loaded Not tainted 6.9.0-rc5+ #8 [ 200.877477] Hardware name: Dell Inc. PowerEdge R6525/0N7YGH, BIOS 2.7.3 03/30/2022 [ 200.885052] RIP: 0010:zap_pte_range+0x43d/0x660

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to before 519547760f16eae7803d2658d9524bc5ba7a20a7Affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to before 14875fd5f9bcf60ac5518c63bfb676ade44aa7c6Affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to before cd94cac4069a763ab5206be2c64c9a8beae590baAffected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to before 8111f902b7c95d75fc80c7e577f5045886c6b384Affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to before 1723f04caacb32cadc4e063725d836a0c4450694Affected
LinuxLinux
  • 5.7Affected
  • before 5.7Not affected
  • 5.15.163 through 5.15.*Not affected
  • 6.1.100 through 6.1.*Not affected
  • 6.6.41 through 6.6.*Not affected
  • 6.9.10 through 6.9.*Not affected
  • 6.10 and laterNot affected

References

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