drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG
Published Jun 26, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.13%
Description
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)
Affected products
-
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.10.14StatusaffectedConstraints<6.11
- Version 6.11.3StatusaffectedConstraints<6.12
- Version 6.6.55StatusaffectedConstraints<6.6.141
- Version
-
- Version 6.12StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.12
- Version 6.12.91StatusunaffectedConstraints<=6.12.*
- Version 6.18.33StatusunaffectedConstraints<=6.18.*
- Version 6.6.141StatusunaffectedConstraints<=6.6.*
- Version 7.0.10StatusunaffectedConstraints<=7.0.*
- Version 7.1StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| ||||||||||||||||||||||||
| Linux | Linux | unaffected |
| ||||||||||||||||||||||||
| Linux | Linux | affected |
|
- ≥ 6.6.55 · < 6.6.141
- ≥ 6.10.14 · < 6.11
- ≥ 6.11.3 · < 6.12.91
- ≥ 6.13 · < 6.18.33
- ≥ 6.19 · < 7.0.10
- 7.1
No data.
Red Hat Enterprise Linux 10
kernel
Fix deferred
Red Hat Enterprise Linux 6
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Fix deferred
Red Hat Enterprise Linux 9
kernel-rt
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
Jun-Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.13% (0.00125) | 1.91th | v5 (v2026.06.15) |
| Jun 27, 2026 | 0.17% (0.00168) | 6.48th | v5 (v2026.06.15) |
References (10)
- https://access.redhat.com/security/cve/CVE-2026-53293 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2493700 Issue Tracking
- https://git.kernel.org/stable/c/0ef196a208385b7d7da79f411c161b04e97283e2 Patch
- https://git.kernel.org/stable/c/5c29d20470d4566d1b68df57097d642d01f8b427 Patch
- https://git.kernel.org/stable/c/61957c2e467b39b528a290016367d32a433fa846 Patch
- https://git.kernel.org/stable/c/8c4254c8f5836e77ae83e7fc037f02b69f7a0977 Patch
- https://git.kernel.org/stable/c/a31c3feb54b15a90232e497ad0e27e8a82052d8d Patch
- https://lore.kernel.org/linux-cve-announce/2026062617-CVE-2026-53293-e4ad@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-53293
- https://www.cve.org/CVERecord?id=CVE-2026-53293
Change history (0)
No recorded changes yet.