NVD

CVE-2021-4460 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.1 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

ADP: CISA-ADP

Base Score: 7.1 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309	kernel.org	Patch
https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c	kernel.org	Patch
https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266	kernel.org	Patch
https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0	kernel.org	Patch
https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf	kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	NIST CISA-ADP

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by kernel.org 8/10/2026 11:17:33 PM

Action

Type

Old Value

New Value

Changed

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"0c0356ef2498c1a250fe3846f30293f828737309","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"1874b0ef1426b873de94c61861e38f29a8df714c","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"3fdc5182700910a685d23df57d65166e8556a266","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"9069b1b542de8f3bbffef868aff41521b21485cf","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"50e2fc36e72d4ad672032ebf646cecb48656efe0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.19","status":"affected"},{"version":"0","lessThan":"3.19","versionType":"semver","status":"unaffected"},{"version":"5.4.118","lessThanOrEqual":"5.4.*","versionType":"semver","status":"unaffected"},{"version":"5.10.36","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.11.20","lessThanOrEqual":"5.11.*","versionType":"semver","status":"unaffected"},{"version":"5.12.3","lessThanOrEqual":"5.12.*","versionType":"semver","status":"unaffected"},{"version":"5.13","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"35cdc81bfa94d10373ecae279f3c48ca858ac4fd","lessThan":"0c0356ef2498c1a250fe3846f30293f828737309","versionType":"git","status":"affected"},{"version":"35cdc81bfa94d10373ecae279f3c48ca858ac4fd","lessThan":"1874b0ef1426b873de94c61861e38f29a8df714c","versionType":"git","status":"affected"},{"version":"35cdc81bfa94d10373ecae279f3c48ca858ac4fd","lessThan":"3fdc5182700910a685d23df57d65166e8556a266","versionType":"git","status":"affected"},{"version":"35cdc81bfa94d10373ecae279f3c48ca858ac4fd","lessThan":"9069b1b542de8f3bbffef868aff41521b21485cf","versionType":"git","status":"affected"},{"version":"35cdc81bfa94d10373ecae279f3c48ca858ac4fd","lessThan":"50e2fc36e72d4ad672032ebf646cecb48656efe0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","versionType":"semver","status":"unaffected"},{"version":"5.4.118","lessThanOrEqual":"5.4.*","versionType":"semver","status":"unaffected"},{"version":"5.10.36","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.11.20","lessThanOrEqual":"5.11.*","versionType":"semver","status":"unaffected"},{"version":"5.12.3","lessThanOrEqual":"5.12.*","versionType":"semver","status":"unaffected"},{"version":"5.13","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

CVE Modified by kernel.org 6/17/2026 12:19:48 AM

Action

Type

Old Value

New Value

Added

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"0c0356ef2498c1a250fe3846f30293f828737309","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"1874b0ef1426b873de94c61861e38f29a8df714c","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"3fdc5182700910a685d23df57d65166e8556a266","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"9069b1b542de8f3bbffef868aff41521b21485cf","versionType":"git","status":"affected"},{"version":"4a488a7ad71401169cecee75dc94bcce642e2c53","lessThan":"50e2fc36e72d4ad672032ebf646cecb48656efe0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.19","status":"affected"},{"version":"0","lessThan":"3.19","versionType":"semver","status":"unaffected"},{"version":"5.4.118","lessThanOrEqual":"5.4.*","versionType":"semver","status":"unaffected"},{"version":"5.10.36","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.11.20","lessThanOrEqual":"5.11.*","versionType":"semver","status":"unaffected"},{"version":"5.12.3","lessThanOrEqual":"5.12.*","versionType":"semver","status":"unaffected"},{"version":"5.13","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

Initial Analysis by NIST 12/10/2025 11:58:01 AM

Action	Type	New Value
Added	CVSS V3.1	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Added	CWE	CWE-125
Added	CPE Configuration	OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.12 up to (excluding) 5.12.3 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.11 up to (excluding) 5.11.20 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.5 up to (excluding) 5.10.36 cpe:2.3:o:linux:linux_kernel::::::::* versions up to (excluding) 5.4.118
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf Types: Patch

New CVE Received from kernel.org 10/01/2025 8:15:31 AM

Action	Type	New Value
Added	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
Added	Reference	https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309
Added	Reference	https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c
Added	Reference	https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266
Added	Reference	https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0
Added	Reference	https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf

Quick Info

CVE Dictionary Entry:
CVE-2021-4460
NVD Published Date:
10/01/2025
NVD Last Modified:
08/10/2026
Source:
kernel.org

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-4460 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by kernel.org 8/10/2026 11:17:33 PM

CVE Modified by CISA-ADP 6/17/2026 12:19:48 AM

CVE Modified by kernel.org 6/17/2026 12:19:48 AM

CVE Modified by CISA-ADP 1/14/2026 1:16:27 PM

Initial Analysis by NIST 12/10/2025 11:58:01 AM

New CVE Received from kernel.org 10/01/2025 8:15:31 AM

Quick Info