{"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":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-367"],"vendor":"Linux","product":"Linux","affected":["Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < 93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a","Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < 52f3e086760a9a3e02a46a10b57caffd73b1c204","Linux >= aac243092b707bb3018e951d470cc1a9bcbaba6c < b3709d354545e70388177500761f92d906c4dfd6","Linux 6.14"],"published":"2026-09-25","updated":"2026-09-30","sourceUpdated":"2026-09-30T14:10:59.253","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"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98146.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98146"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541367"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98146"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98146"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98146.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.0009,"epssPercentile":0.00413,"cvssSource":"vendor","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.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-28 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98146.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212585,"id":"CVE-2026-98146","ts":1790668215787,"field":"cvss","old":null,"new":"5.5"},{"seq":212584,"id":"CVE-2026-98146","ts":1790668215787,"field":"severity","old":"none","new":"medium"}]}