Bug 2540473 (CVE-2026-93788) - CVE-2026-93788 kernel: wifi: iwlwifi: acpi: validate WGDS table revision index
Summary: CVE-2026-93788 kernel: wifi: iwlwifi: acpi: validate WGDS table revision index
Keywords:
Status: NEW
Alias: CVE-2026-93788
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:57 UTC by OSIDB Bzimport
Modified: 2026-09-28 10:51 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-24 16:57:25 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: acpi: validate WGDS table revision index

Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when
firmware reports an invalid revision value.
Comment 1 Mauro Matteo Cascella 2026-09-28 10:23:26 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93788.mbox
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