CVE-2026-98146

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.

Package Linux Kernel
Published 2026-09-25
Last modified 2026-09-30
Patch available
Yes

Affected versions

Linux kernel versions 6.14 and later are affected. Fixed in 6.18.53, 7.2.7, 7.3-rc2 and their respective stable series.

Affected from
≥ 6.14
Fixed in
✓ 6.18.53 6.18.x ✓ 7.2.7 7.2.x ✓ 7.3-rc2

References

3 total

Frequently asked questions

  • What is CVE-2026-98146?

    CVE-2026-98146 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.14 onward and has been patched in 6.18.53, 7.2.7 and 7.3-rc2. CVE-2026-98146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-98146?

    Yes. CVE-2026-98146 has been patched. Fixed versions include 6.18.53, 7.2.7 and 7.3-rc2. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-98146 actively exploited?

    No. CVE-2026-98146 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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