TI-2026-38379 Aliases CVE-2026-53293 GHSA-qxgc-w63m-xvqr

drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG

LOW 24CWE-667Published 2026-06-26 · Updated 2026-11-06

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00125 2nd percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.6.141, 6.11, 6.12 +4Red Hat: 3 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	6.6.55 to before 6.6.141; 6.10.14 to before 6.11; 6.11.3 to before 6.12	6.6.141, 6.11, 6.12	Patch available	CNA
Linux	Linux	6.12 and later	6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1	Patch available	CNA

Linux VendorLinux Affected 6.6.55 to before 6.6.141; 6.10.14 to before 6.11; 6.11.3 to before 6.12 Fixed in 6.6.141, 6.11, 6.12 Patch available CNA
Linux VendorLinux Affected 6.12 and later Fixed in 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	6.6.55 to before 6.6.141; 6.10.14 to before 6.11; 6.11.3 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::	7.1 rc1	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.6.55 to before 6.6.141; 6.10.14 to before 6.11; 6.11.3 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.6.141, 6.11, 6.12
Fix · CNA Linux (Linux) Fixed in 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1

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 9	Affected	No fix yet: Fix deferred

Not affected: 3 products

Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2026-53293
2026-10-03 Alias added: GHSA-qxgc-w63m-xvqr
2026-10-29 Affected versions changed · Red Hat
2026-11-06 CISA SSVC decision points changed

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