TI-2026-47887 Aliases CVE-2026-68107 GHSA-37mr-g2c4-w7wf

drm/amdgpu/vcn4: avoid rereading IB param length

LOW 39CWE-367Published 2026-08-10 · Updated 2026-10-30

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: 7 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: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.001 0th percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.6.148, 6.12.101, 6.2 +4Red Hat: 7 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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	6.6.107 to before 6.6.148; 6.12.48 to before 6.12.101; 6.1.191 to before 6.2; 6.16.8 to before 6.17	6.6.148, 6.12.101, 6.2, 6.17	Patch available	CNA
Linux	Linux	6.17 and later	6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2	Patch available	CNA

Linux VendorLinux Affected 6.6.107 to before 6.6.148; 6.12.48 to before 6.12.101; 6.1.191 to before 6.2; 6.16.8 to before 6.17 Fixed in 6.6.148, 6.12.101, 6.2, 6.17 Patch available CNA
Linux VendorLinux Affected 6.17 and later Fixed in 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2 Patch available CNA

CPE names Threatist (inferred) · 1

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

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	—	—	Linux

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

Remediation

Fix · CNA Linux (Linux) Fixed in 6.6.148, 6.12.101, 6.2, 6.17
Fix · CNA Linux (Linux) Fixed in 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 4	Affected	No fix yet: Fix deferred
Red Hat OpenShift Container Platform 5	Affected	No fix yet: Fix deferred

Not affected: 2 products

Red Hat Enterprise Linux for NVIDIA 26
Red Hat OpenShift Container Platform 4

Timeline

2026-10-02 Threatist record created from CVE-2026-68107
2026-10-03 Alias added: GHSA-37mr-g2c4-w7wf
2026-10-16 CISA SSVC decision points changed
2026-10-20 Weakness changed · CISA ADP
2026-10-30 Affected versions changed · Red Hat
2026-10-30 Fix available: Linux/[email protected] · 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