🛡️ CVE-2024-46794 on Debian — linux

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ]

Distribution advisory

This page covers CVE-2024-46794 as tracked by Debian, for the package linux. The fix is available in version 6.10.11-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software

DEBIAN-CVE-2024-46794 is recorded against 2 packages.

linux (fixed in 6.10.11-1)
linux-6.1 (fixed in 6.1.119-1~deb11u1)

Timeline and source

Published on 18 September 2024 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2024-46794 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2024-09-18

Updated 2026-08-12

Modified 2026-08-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.10.11-1
linux-6.1	—	6.1.119-1~deb11u1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2024-46794

🔗 NVD 🔗 Mitre

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