CVE-2024-43852

hwmon: (ltc2991) re-order conditions to fix off by one bug

HIGH
7.8
CVSS Score
Published: August 17, 2024 at 09:22 AM UTC
Updated: June 17, 2026 at 07:51 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: hwmon: (ltc2991) re-order conditions to fix off by one bug LTC2991_T_INT_CH_NR is 4. The st->temp_en[] array has LTC2991_MAX_CHANNEL (4) elements. Thus if "channel" is equal to LTC2991_T_INT_CH_NR then we have read one element beyond the end of the array. Flip the conditions around so that we check if "channel" is valid before using it as an array index.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.7 ≤ v < 6.10.36.7 ≤ v < 6.112b9ea4262ae9114b0b86ac893b4d6175d85200016.7
Vendor states this is fixed in 99bf7c2eccff82760fa23ce967cc67c8c219c6a6 (fixed)
Vendor states this is fixed in c180311c0a520692e2d0e9ca44dcd6c2ff1b41c4 (fixed)
Vendor states this is fixed in 6.10.3 (unaffected)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/99bf7c2eccff82760fa23ce967cc67c8c219c6a6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c180311c0a520692e2d0e9ca44dcd6c2ff1b41c4

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-193

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card