Fix userfaultfd_api to return EINVAL as expected
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.7 and later | 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.7 and later Fixed in 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.7 to before 5.15.163; 5.16 to before 6.1.100; 6.2 to before 6.6.41; 6.7 to before 6.9.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* | 6.10 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* | 6.10 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:* | 6.10 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:* | 6.10 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:* | 6.10 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:* | 6.10 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:* | 6.10 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.7 to before 5.15.163; 5.16 to before 6.1.100; 6.2 to before 6.6.41; 6.7 to before 6.9.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* Versions 6.10 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* Versions 6.10 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:* Versions 6.10 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:* Versions 6.10 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:* Versions 6.10 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:* Versions 6.10 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:* Versions 6.10 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.163, 6.1.100, 6.6.41, 6.9.10, 6.10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41027
- 2026-10-03 Alias added: GHSA-p33r-c638-j6rh
References
Patch 5
- https://git.kernel.org/stable/c/519547760f16eae7803d2658d9524bc5ba7a20a7
- https://git.kernel.org/stable/c/14875fd5f9bcf60ac5518c63bfb676ade44aa7c6
- https://git.kernel.org/stable/c/cd94cac4069a763ab5206be2c64c9a8beae590ba
- https://git.kernel.org/stable/c/8111f902b7c95d75fc80c7e577f5045886c6b384
- https://git.kernel.org/stable/c/1723f04caacb32cadc4e063725d836a0c4450694
More Linux Kernel vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-41027 · CVE Program
- CVE-2024-41027 · NVD
- FIRST EPSS
- GHSA-p33r-c638-j6rh · GitHub Advisory Database · CC BY 4.0
- CVE-2024-41027 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences