{"id":"CVE-2026-98146","title":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain\n\nstruct amdxdna_cmd_chain contains a flexible array annotated with\n__counted_by(command_count)","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain\n\nstruct amdxdna_cmd_chain contains a flexible array annotated with\n__counted_by(command_count). Since t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < 93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a","Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < 52f3e086760a9a3e02a46a10b57caffd73b1c204","Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < b3709d354545e70388177500761f92d906c4dfd6","Linux 6.14"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:46.147","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98146","references":[{"url":"https://git.kernel.org/stable/c/52f3e086760a9a3e02a46a10b57caffd73b1c204","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b3709d354545e70388177500761f92d906c4dfd6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.808Z","slug":"CVE-2026-98146","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain\n\nstruct amdxdna_cmd_chain contains a flexible array annotated with\n__counted_by(command_count). Since the structure is stored in shared\nAMDXDNA_BO_SHARE memory, userspace can modify command_count concurrently.\nIf command_count is changed to zero, the bounds check generated from\n__counted_by may fail and trigger a kernel panic.\n\nRemove __counted_by to avoid relying on the userspace-controlled\ncommand_count for the flexible array bounds check.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}