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TI-2024-32003 Aliases CVE-2024-47727GHSA-w36c-ppc4-pwgg

x86/tdx: Fix "in-kernel MMIO" check

Priority LOW 34CWE-754Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 15 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix "in-kernel MMIO" check TDX only supports kernel-initiated MMIO operations. The handle_mmio() function checks if the #VE exception occurred in the kernel and rejects the operation if it did not. However, userspace can deceive the kernel into performing MMIO on its behalf. For example, if userspace can point a syscall to an MMIO address, syscall does get_user() or put_user() on it, triggering MMIO #VE. The kernel will treat the #VE as in-kernel MMIO. Ensure that the target MMIO address is within the kernel before decoding instruction.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00247 16th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.113, 6.6.54, 6.10.13 +2Red Hat: 3 advisoriesRed Hat: 15 fixed, 4 without a fix

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

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.19 and later6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12Patch availableCNA
  • Linux VendorLinux Affected 5.19 and later Fixed in 6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.19 to before 6.1.113; 6.2 to before 6.6.54; 6.7 to before 6.10.13; 6.11 to before 6.11.2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.19 to before 6.1.113; 6.2 to before 6.6.54; 6.7 to before 6.10.13; 6.11 to before 6.11.2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.113, 6.6.54, 6.10.13, 6.11.2, 6.12

Red Hat 3 advisories

  • RHSA-2026:4246 Released 2026-03-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.114.1.el9_4, libperf-5.14.0-427.114.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.114.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.114.1.el9_4, kernel-64k-devel-5.14.0-427.114.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.114.1.el9_4, kernel-5.14.0-427.114.1.el9_4, kernel-64k-5.14.0-427.114.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.114.1.el9_4, kernel-rt-core-5.14.0-427.114.1.el9_4, kernel-rt-debug-5.14.0-427.114.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.114.1.el9_4, kernel-rt-core-5.14.0-427.114.1.el9_4, kernel-rt-debug-5.14.0-427.114.1.el9_4 +11
  • RHSA-2026:4011 Released 2026-03-09 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.96.1.el9_6, libperf-5.14.0-570.96.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.96.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.96.1.el9_6, kernel-64k-devel-5.14.0-570.96.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.96.1.el9_6, kernel-64k-5.14.0-570.96.1.el9_6, kernel-64k-core-5.14.0-570.96.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.96.1.el9_6, kernel-rt-64k-5.14.0-570.96.1.el9_6, kernel-rt-64k-core-5.14.0-570.96.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.96.1.el9_6, kernel-rt-core-5.14.0-570.96.1.el9_6, kernel-rt-debug-5.14.0-570.96.1.el9_6 +11
  • RHSA-2025:20518 Released 2025-11-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.5.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.5.1.el9_7, kernel-64k-devel-5.14.0-611.5.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.5.1.el9_7, kernel-64k-5.14.0-611.5.1.el9_7, kernel-64k-core-5.14.0-611.5.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.5.1.el9_7, libperf-5.14.0-611.5.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.5.1.el9_7, kernel-rt-64k-5.14.0-611.5.1.el9_7, kernel-rt-64k-core-5.14.0-611.5.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.5.1.el9_7, kernel-rt-core-5.14.0-611.5.1.el9_7, kernel-rt-debug-5.14.0-611.5.1.el9_7 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2026:4246
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:4246
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2026:4246
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2026:4246
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:4011
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2026:4246
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:4011

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-47727
  2. 2026-10-03 Alias added: GHSA-w36c-ppc4-pwgg
  3. 2026-10-29 Affected versions changed · Red Hat

References

Patch 5

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • 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
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences