CVE-2026-53143 (GCVE-0-2026-53143)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-08-20 12:32
VLAI
EPSS
VEX
Title
drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11
The v11 MQD manager incorrectly assigned the CP-compute variants of
checkpoint_mqd/restore_mqd for KFD_MQD_TYPE_SDMA queues. These functions
use sizeof(struct v11_compute_mqd) (2048 bytes) instead of sizeof(struct
v11_sdma_mqd) (512 bytes), causing a 1536-byte overflow.
During CRIU checkpoint of an SDMA queue on Navi3x:
- checkpoint_mqd() reads 2048 bytes from a 512-byte SDMA MQD buffer,
leaking 1536 bytes of adjacent GTT memory to userspace
During CRIU restore:
- restore_mqd() writes 2048 bytes into a 512-byte SDMA MQD buffer,
corrupting 1536 bytes of adjacent GTT memory (often the ring buffer
or neighboring MQDs)
This is a copy-paste regression unique to v11. All other ASIC backends
(cik, vi, v9, v10, v12) correctly use the SDMA-specific variants.
Add checkpoint_mqd_sdma() and restore_mqd_sdma() functions that properly
handle the smaller v11_sdma_mqd structure, matching the pattern used in
other MQD managers.
(cherry picked from commit 6fa41db7ffdec97d62433adf03b7b9b759af8c2c)
Severity
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/16dad1fb0d783a400… | |
| https://git.kernel.org/stable/c/2c5b66c9b4057b385… | |
| https://git.kernel.org/stable/c/d3efcadfe3eea5b42… | |
| https://git.kernel.org/stable/c/d02f05d30f35b036f… | |
| https://git.kernel.org/stable/c/352ea59028ea48a6f… | |
| https://access.redhat.com/security/cve/CVE-2026-53143 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2492719 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:57251 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:57252 | vendor-advisoryx_refsource_REDHAT |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
cc009e613de6560eb499f8bc92c80a737752cb30 , < 16dad1fb0d783a4008de30e32d0038c393de05b1
(git)
Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < 2c5b66c9b4057b385566940935ebc32f6e6ebfd2 (git) Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < d3efcadfe3eea5b4263b8f2d4463b15c9fc46a64 (git) Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < d02f05d30f35b036f7cbaf72de634affb5b38ec6 (git) Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < 352ea59028ea48a6fff77f19ae28f98f71946a80 (git) |
guessed | |
| Linux | Linux |
Affected:
5.19
Unaffected: 0 , < 5.19 (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed | |
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-08-20T07:59:35+00:00",
"cve": "CVE-2026-53143",
"id": "CVE-2026-53143",
"initial_release_date": "2026-06-25T00:00:00+00:00",
"product_status:fixed": "612",
"product_status:known_affected": "70",
"product_status:known_not_affected": "28",
"product_status:under_investigation": "14",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53143.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-31T16:44:41Z",
"cve": "CVE-2026-53143",
"id": "CVE-2026-53143",
"initial_release_date": "2026-06-26T02:12:17Z",
"product_status:first_fixed": "2",
"product_status:known_affected": "482",
"product_status:known_not_affected": "236",
"product_status:recommended": "333",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-53143",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53143.json",
"version": "11"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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