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CVE-2026-98146 Details

Description

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain struct amdxdna_cmd_chain contains a flexible array annotated with __counted_by(command_count). Since the structure is stored in shared AMDXDNA_BO_SHARE memory, userspace can modify command_count concurrently. If command_count is changed to zero, the bounds check generated from __counted_by may fail and trigger a kernel panic. Remove __counted_by to avoid relying on the userspace-controlled command_count for the flexible array bounds check.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/52f3e086760a9a3e02a46a10b57caffd73b1c204	kernel.org	Patch
https://git.kernel.org/stable/c/93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a	kernel.org	Patch
https://git.kernel.org/stable/c/b3709d354545e70388177500761f92d906c4dfd6	kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 6.14, < 6.18.53 >= 6.19, < 7.2.7 7.3 rc1
CPE cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:7.3:rc1:::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Oct 22, 2026	Reanalysis	[email protected]
Oct 21, 2026	Initial Analysis	[email protected]
Oct 19, 2026	CVE Modified	kernel.org
Sep 25, 2026	New CVE Received	kernel.org