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Debian LinuxOperating system · Debian

CVE-2024-46859

HIGH · 7.8 CVSS v3.1 Published 2024-09-27
Fix available
A fix is available. Upgrade to 5.15.168 / 6.1.111 or later.
See remediation →
80/100
Remediation priority · High
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses The panasonic laptop code in various places uses the SINF array with index values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array is big enough. Not all panasonic laptops have this many SINF array entries, for example the Toughbook CF-18 model only has 10 SINF array entries. So it only supports the AC+DC brightness entries and mute. Check that the SINF array has a minimum size which covers all AC+DC brightness entries and refuse to load if the SINF array is smaller. For higher SINF indexes hide the sysfs attributes when the SINF array does not contain an entry for that attribute, avoiding show()/store() accessing the array out of bounds and add bounds checking to the probe() and resume() code accessing these.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Debian LinuxOperating system
Affected:= 11.0
Linux KernelOperating system
Affected:>= 3.3, < 5.15.168>= 5.16, < 6.1.111>= 6.2, < 6.6.52>= 6.7, < 6.10.11= 6.11

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.15.168 / 6.1.111 / 6.6.52 or later
Fixed in 5.15.1686.1.1116.6.52
Vendor patch git.kernel.org →
Recommended fix High confidence

Linux Kernel 5.15.168+ (for 5.15.x), 6.1.111+ (for 6.1.x), 6.6.52+ (for 6.2-6.5.x), or 6.10.11+ (for 6.7-6.10.x)

  1. Identify the current kernel version using 'uname -r' or 'cat /proc/version'
  2. Determine which version branch the current kernel belongs to (5.15.x, 6.1.x, 6.2.x, 6.6.x, or 6.7-6.10.x)
  3. For Debian 11 systems, check available kernel packages with 'apt-cache search linux-image' and look for a version >= the fixed version for your branch
  4. Apply the appropriate kernel upgrade: for 5.15.x branch upgrade to >= 5.15.168, for 6.1.x branch upgrade to >= 6.1.111, for 6.2.x-6.5.x branch upgrade to >= 6.6.52, for 6.7-6.10.x branch upgrade to >= 6.10.11
  5. Reboot the system to load the fixed kernel
  6. Verify the new kernel version is running with 'uname -r'
  7. Confirm the panasonic-laptop module loads correctly if needed: 'modprobe panasonic-laptop'
Caveat Kernel upgrades may require driver recompilation for out-of-tree modules; ensure all system dependencies and custom drivers are compatible with the new kernel version before upgrading production systems

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-46859 in production — separate from our analysis above.

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What this is

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  • Version or environment caveats, and links to real fixes
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