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TI-2025-25197 Aliases CVE-2025-37849GHSA-4wfv-x2vf-68j5

KVM: arm64: Tear down vGIC on failed vCPU creation

Priority LOW 38CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 33 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl but leave the vGIC vCPU data initialised. Note only does this leak the corresponding memory when the vCPU is destroyed but it can also lead to use-after-free if the redistributor device handling tries to walk into the vCPU. Add the missing cleanup to kvm_arch_vcpu_create(), ensuring that the vGIC vCPU structures are destroyed on error.

Why it matters now

EPSS 0.00273 19th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.135, 6.6.88, 6.12.24 +3Red Hat: 9 advisoriesRed Hat: 33 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux3.11 and later6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15Patch availableCNA
  • Linux VendorLinux Affected 3.11 and later Fixed in 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 6.1.135; 6.2 to before 6.6.88; 6.7 to before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.3VulnerableLinux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.1.135; 6.2 to before 6.6.88; 6.7 to before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.3 Vulnerable ·Linux
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15

Red Hat 9 advisories

  • RHSA-2026:6193 Released 2026-03-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.65.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.65.1.el10_0, kernel-64k-devel-6.12.0-55.65.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.65.1.el10_0, kernel-64k-6.12.0-55.65.1.el10_0, kernel-64k-core-6.12.0-55.65.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.65.1.el10_0, libperf-6.12.0-55.65.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.65.1.el10_0, kernel-rt-64k-6.12.0-55.65.1.el10_0, kernel-rt-64k-core-6.12.0-55.65.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.65.1.el10_0, kernel-rt-core-6.12.0-55.65.1.el10_0, kernel-rt-debug-6.12.0-55.65.1.el10_0 +11
  • RHSA-2026:1494 Released 2026-01-28 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.163.1.el9_0, kernel-debug-devel-matched-5.14.0-70.163.1.el9_0, kernel-devel-5.14.0-70.163.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.163.1.el9_0, kernel-5.14.0-70.163.1.el9_0, kernel-abi-stablelists-5.14.0-70.163.1.el9_0 +14
  • RHSA-2026:1495 Released 2026-01-28 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +7
Show 6 more Red Hat advisories
  • RHSA-2026:1441 Released 2026-01-28 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.154.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.154.1.el9_2, kernel-64k-devel-5.14.0-284.154.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.154.1.el9_2, kernel-5.14.0-284.154.1.el9_2, kernel-64k-5.14.0-284.154.1.el9_2 +29
  • RHSA-2026:1443 Released 2026-01-28 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-core-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-debug-5.14.0-284.154.1.rt14.439.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-core-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-debug-5.14.0-284.154.1.rt14.439.el9_2 +11
  • RHSA-2026:0917 Released 2026-01-21 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.107.1.el9_4, libperf-5.14.0-427.107.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.107.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.107.1.el9_4, kernel-64k-devel-5.14.0-427.107.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.107.1.el9_4, kernel-5.14.0-427.107.1.el9_4, kernel-64k-5.14.0-427.107.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.107.1.el9_4, kernel-rt-core-5.14.0-427.107.1.el9_4, kernel-rt-debug-5.14.0-427.107.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.107.1.el9_4, kernel-rt-core-5.14.0-427.107.1.el9_4, kernel-rt-debug-5.14.0-427.107.1.el9_4 +11
  • RHSA-2026:0804 Released 2026-01-19 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.79.1.el9_6, libperf-5.14.0-570.79.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.79.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.79.1.el9_6, kernel-64k-devel-5.14.0-570.79.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.79.1.el9_6, kernel-64k-5.14.0-570.79.1.el9_6, kernel-64k-core-5.14.0-570.79.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.79.1.el9_6, kernel-rt-64k-5.14.0-570.79.1.el9_6, kernel-rt-64k-core-5.14.0-570.79.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.79.1.el9_6, kernel-rt-core-5.14.0-570.79.1.el9_6, kernel-rt-debug-5.14.0-570.79.1.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
  • RHSA-2025:20095 Released 2025-11-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.8.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.8.1.el10_1, kernel-64k-devel-6.12.0-124.8.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.8.1.el10_1, kernel-64k-6.12.0-124.8.1.el10_1, kernel-64k-core-6.12.0-124.8.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.8.1.el10_1, libperf-6.12.0-124.8.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.8.1.el10_1, kernel-rt-64k-6.12.0-124.8.1.el10_1, kernel-rt-64k-core-6.12.0-124.8.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.8.1.el10_1, kernel-rt-core-6.12.0-124.8.1.el10_1, kernel-rt-debug-6.12.0-124.8.1.el10_1 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2026:0917
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:0804
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:20095
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2026:1494
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:1441
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:0917
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:0804
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:20095
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2026:1494
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:1441
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2026:0917
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:0804
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:20095
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2026:1495
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:20095
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2026:1495
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:1443
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2026:0917
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:0804
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:20095
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:20518
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:1443
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2026:0917
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:0804
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-37849
  2. 2026-10-03 Alias added: GHSA-4wfv-x2vf-68j5

References

Patch 6

  • 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