CVE-2021-4460

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-4460
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309 Patch
https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c Patch
https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266 Patch
https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0 Patch
https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf 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:*:*:*:*:*:*:*:*
History

10 Dec 2025, 16:58

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309 - () https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309 - Patch
References () https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c - () https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c - Patch
References () https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266 - () https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266 - Patch
References () https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0 - () https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0 - Patch
References () https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf - () https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf - Patch
First Time Linux
Linux linux Kernel
CWE CWE-125
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1

01 Oct 2025, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-10-01 12:15

Updated : 2026-01-14 18:16

NVD link : CVE-2021-4460

Mitre link : CVE-2021-4460

CVE.ORG link : CVE-2021-4460

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read