CVE-2026-53143 (GCVE-0-2026-53143)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-30 12:09
VLAI
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
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < 16dad1fb0d783a4008de30e32d0038c393de05b1 (git)
Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < 2c5b66c9b4057b385566940935ebc32f6e6ebfd2 (git)
Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < d3efcadfe3eea5b4263b8f2d4463b15c9fc46a64 (git)
Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < d02f05d30f35b036f7cbaf72de634affb5b38ec6 (git)
Affected: cc009e613de6560eb499f8bc92c80a737752cb30 , < 352ea59028ea48a6fff77f19ae28f98f71946a80 (git)
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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)
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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  }
}


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