Bug 2426104 (CVE-2023-54222)

Summary: CVE-2023-54222 kernel: Linux kernel: Information disclosure or denial of service via out-of-bounds read in Tegra Host Emulation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in the Linux kernel. Specifically, an off-by-one error in the Tegra Host Emulation (hte) component's `tegra_hte_map_to_line_id()` function, caused by an incorrect boundary check, could allow a local attacker to read memory outside of allocated bounds. This out-of-bounds read may lead to information disclosure or a denial of service (DoS).
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Description OSIDB Bzimport 2025-12-30 13:09:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id()

The "map_sz" is the number of elements in the "m" array so the >
comparison needs to be changed to >= to prevent an out of bounds
read.
Comment 1 Alexander B 2025-12-31 08:56:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123027-CVE-2023-54222-1748@gregkh/T