accel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain
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.
CVE-2026-98146
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98146
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "aac243092b707bb3018e951d470cc1a9bcbaba6c",
"lessThan": "93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a",
"versionType": "git"
},
{
"status": "affected",
"version": "aac243092b707bb3018e951d470cc1a9bcbaba6c",
"lessThan": "52f3e086760a9a3e02a46a10b57caffd73b1c204",
"versionType": "git"
},
{
"status": "affected",
"version": "aac243092b707bb3018e951d470cc1a9bcbaba6c",
"lessThan": "b3709d354545e70388177500761f92d906c4dfd6",
"versionType": "git"
}
],
"programFiles": [
"drivers/accel/amdxdna/amdxdna_ctx.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/accel/amdxdna/amdxdna_ctx.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98146
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38239 · Revision 1
- Added to Heist Feed
- Publisher date