CVE-2026-53374

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-53374
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpu_bo_create_kernel() does not zero-initialize the buffer, when a single PTE is written the TLB may speculatively load other uninitialized entries from the same cacheline. Those garbage entries can appear valid, and a subsequent write to another PTE in the same cacheline may cause the GPU to use a stale garbage PTE from the TLB. Fix this by calling memset_io() to zero-initialize the GART table with gart_pte_flags immediately after allocation. Using AMDGPU_GEM_CREATE_VRAM_CLEARED, SDMA-based clear will not work since SDMA needs GART to be initialized to work. (cherry picked from commit d9af8263b82b6eaa60c5718e0c6631c5037e4b24)

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://git.kernel.org/stable/c/40df11255d71b02e20e70579f1b12b687e396e26 Patch
https://git.kernel.org/stable/c/791941be5da125d9a1b228582bfdc300c05d05b3 Patch
https://git.kernel.org/stable/c/8ae8b9e74bab94aab1d79f1688129bcc61c8b29a Patch
https://git.kernel.org/stable/c/91fbb5e635c8fb1b49e15c19da06480089ef719f Patch
https://git.kernel.org/stable/c/b17175d0a375b3ed5e81597dac4983fdb46e478d Patch
https://git.kernel.org/stable/c/e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
History

29 Jul 2026, 16:55

Type Values Removed Values Added
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/40df11255d71b02e20e70579f1b12b687e396e26 - () https://git.kernel.org/stable/c/40df11255d71b02e20e70579f1b12b687e396e26 - Patch
References () https://git.kernel.org/stable/c/791941be5da125d9a1b228582bfdc300c05d05b3 - () https://git.kernel.org/stable/c/791941be5da125d9a1b228582bfdc300c05d05b3 - Patch
References () https://git.kernel.org/stable/c/8ae8b9e74bab94aab1d79f1688129bcc61c8b29a - () https://git.kernel.org/stable/c/8ae8b9e74bab94aab1d79f1688129bcc61c8b29a - Patch
References () https://git.kernel.org/stable/c/91fbb5e635c8fb1b49e15c19da06480089ef719f - () https://git.kernel.org/stable/c/91fbb5e635c8fb1b49e15c19da06480089ef719f - Patch
References () https://git.kernel.org/stable/c/b17175d0a375b3ed5e81597dac4983fdb46e478d - () https://git.kernel.org/stable/c/b17175d0a375b3ed5e81597dac4983fdb46e478d - Patch
References () https://git.kernel.org/stable/c/e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741 - () https://git.kernel.org/stable/c/e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741 - Patch

20 Jul 2026, 15:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.8

19 Jul 2026, 11:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-07-19 11:16

Updated : 2026-07-29 16:55

NVD link : CVE-2026-53374

Mitre link : CVE-2026-53374

CVE.ORG link : CVE-2026-53374

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo