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THREAT OPS › Threat News › [NVD] CVE-2021-4460 (HIGH 7.1) — 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

[NVD] CVE-2021-4460 (HIGH 7.1) — 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

lownvdPublished 2025-10-01

CVE-2021-4460 CVSS: 7.1 HIGH Published: 2025-10-01T12:15:31.850

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

Indicators of compromise

CVE-2021-4460cve
https://gitlab.freedesktop.org/drm/amd/-/issues/1472url

Original source: https://nvd.nist.gov/vuln/detail/CVE-2021-4460