CVEvulnerability

CVE-2021-4460

7.1 HIGH Published 2025-10-01 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2025-10-01
Last modified
2026-08-11
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-125

Description

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

Affected configurations

• linux linux kernel (< 5.4.118) • linux linux kernel (>= 5.5 < 5.10.36) • linux linux kernel (>= 5.11 < 5.11.20) • linux linux kernel (>= 5.12 < 5.12.3)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References