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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-41027

Fix userfaultfd_api to return EINVAL as expected

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Status
Published
Published
Updated
Assigning organization
Linux

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to < 519547760f16eae7803d2658d9524bc5ba7a20a7affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to < 14875fd5f9bcf60ac5518c63bfb676ade44aa7c6affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to < cd94cac4069a763ab5206be2c64c9a8beae590baaffected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to < 8111f902b7c95d75fc80c7e577f5045886c6b384affected
  • e06f1e1dd4998ffc9da37f580703b55a93fc4de4 to < 1723f04caacb32cadc4e063725d836a0c4450694affected

Linux Linux

Default version status: affected

  • 5.7affected
  • 0 to < 5.7unaffected
  • 5.15.163 to ≤ 5.15.*unaffected
  • 6.1.100 to ≤ 6.1.*unaffected
  • 6.6.41 to ≤ 6.6.*unaffected
  • 6.9.10 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References