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TI-2025-26737 Aliases CVE-2025-40065GHSA-m7w6-fmw8-2v8x

RISC-V: KVM: Write hgatp register with valid mode bits

Priority LOW 22Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
—
Impact type
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Confidentiality · integrity · availability
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Fix status
Fixed

No CVSS vector from any source. Fix status from CNA.

Summary

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Write hgatp register with valid mode bits According to the RISC-V Privileged Architecture Spec, when MODE=Bare is selected,software must write zero to the remaining fields of hgatp. We have detected the valid mode supported by the HW before, So using a valid mode to detect how many vmid bits are supported.

Why it matters now

EPSS 0.00238 14th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +2

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.16 and later6.1.191, 6.6.160, 6.12.114, 6.17.3, 6.18Patch availableCNA
  • Linux VendorLinux Affected 5.16 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.17.3, 6.18 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.17.3, 6.18

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 5 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40065
  2. 2026-10-03 Alias added: GHSA-m7w6-fmw8-2v8x
  3. 2026-10-21 Fix available: Linux/Linux@5cba8ae00279296a586d0596443109d601b1d116, Linux/[email protected], Linux/[email protected] +1 · CNA
  4. 2026-10-21 2 new references · CNA
  5. 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@feb64ca53d97b3ac8ba9ecbeae5f9426f1513650 · CNA
  6. 2026-10-30 1 new reference · CNA

References

Other 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-2021-02452 Incorrect authorization in Ubuntu linux kernel 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
See all 21741 →

Sources

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