platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses

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Summary

CVECVE-2024-46859
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-09-27 13:15:17 UTC
Updated2026-05-05 15:06:23 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-129

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 b7c2f692307fe704be87ea80d7328782b33c3cef git Not specified
CNA Linux Linux affected e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 9291fadbd2720a869b1d2fcf82305648e2e62a16 git Not specified
CNA Linux Linux affected e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 6821a82616f60aa72c5909b3e252ad97fb9f7e2a git Not specified
CNA Linux Linux affected e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 b38c19783286a71693c2194ed1b36665168c09c4 git Not specified
CNA Linux Linux affected e424fb8cc4e6634c10f8159b1ff5618cf7bab9c6 f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4 git Not specified
CNA Linux Linux affected 3.3 Not specified
CNA Linux Linux unaffected 3.3 semver Not specified
CNA Linux Linux unaffected 5.15.168 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.111 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.52 6.6.* semver Not specified
CNA Linux Linux unaffected 6.10.11 6.10.* semver Not specified
CNA Linux Linux unaffected 6.11 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/6821a82616f60aa72c5909b3e252ad97fb9f7e2a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b38c19783286a71693c2194ed1b36665168c09c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9291fadbd2720a869b1d2fcf82305648e2e62a16 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/b7c2f692307fe704be87ea80d7328782b33c3cef 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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