In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: validate doorbell_offset in user queue creation
amdgpu_userq_get_doorbell_index() passes the user-provided
doorbell_offset to amdgpu_doorbell_index_on_bar() without bounds
checking. An arbitrarily large doorbell_offset can cause the
calculated doorbell index to fall outside the allocated doorbell BO,
potentially corrupting kernel doorbell space.
Validate that doorbell_offset falls within the doorbell BO before
computing the BAR index, using u64 arithmetic to prevent overflow.
(cherry picked from commit de1ef4ffd70e1d15f0bf584fd22b1f28cbd5e2ec)
References
Configurations
Configuration 1 (hide)
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History
11 May 2026, 17:49
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
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| CWE | NVD-CWE-noinfo | |
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
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| References | () https://git.kernel.org/stable/c/3543005a42d7e8e12b21897ef6798541bf7cbcd3 - Patch | |
| References | () https://git.kernel.org/stable/c/86b732fbc37ce4fb76cdd4af0fb7e30a6acdbce6 - Patch | |
| References | () https://git.kernel.org/stable/c/a018d1819f158991b7308e4f74609c6c029b670c - Patch |
03 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
01 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 15:16
Updated : 2026-05-11 17:49
NVD link : CVE-2026-31766
Mitre link : CVE-2026-31766
CVE.ORG link : CVE-2026-31766
JSON object : View
Products Affected
linux
- linux_kernel
CWE