Bug 2546431 (CVE-2026-98221) - CVE-2026-98221 kernel: KEYS: trusted: Fix tpm2_load_cmd() boundary check
Summary: CVE-2026-98221 kernel: KEYS: trusted: Fix tpm2_load_cmd() boundary check
Keywords:
Status: NEW
Alias: CVE-2026-98221
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 09:19 UTC by OSIDB Bzimport
Modified: 2026-10-09 12:07 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-06 09:19:49 UTC 
In the Linux kernel, the following vulnerability has been resolved:

KEYS: trusted: Fix tpm2_load_cmd() boundary check

tpm2_load_cmd() does boundary checks against the ASN.1 size i.e.,
payload->blob_len. Address this by passing the decoded blob size to
tpm2_load_cmd(), and use it for the boundary checks.
Comment 1 Mauro Matteo Cascella 2026-10-09 11:50:48 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98221.mbox
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