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CVE-2024-56567· NVD / CVE Program· CNA Linux

ad7780: fix division by zero in ad7780_write_raw()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 022e13518ba6cc1b4fdd291f49e4f57b2d5718e0, 18fb33df1de83a014d7f784089f9b124facc157f, 68e79b848196a0b0ec006009cc69da1f835d1ae8; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1.

Low priority for now. Upgrade to Linux Linux 022e13518ba6cc1b4fdd291f49e4f57b2d5718e0, 18fb33df1de83a014d7f784089f9b124facc157f, 68e79b848196a0b0ec006009cc69da1f835d1ae8; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: ad7780: fix division by zero in ad7780_write_raw() In the ad7780_write_raw() , val2 can be zero, which might lead to a division by zero error in DIV_ROUND_CLOSEST(). The ad7780_write_raw() is based on iio_info's write_raw. While val is explicitly declared that can be zero (in read mode), val2 is not specified to be non-zero.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Dec 27, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-56567

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.2 and later · before 5.4.287
  • linux linux kernel5.5 and later · before 5.10.231
  • linux linux kernel5.11 and later · before 5.15.174
  • linux linux kernel5.16 and later · before 6.1.120
  • linux linux kernel6.2 and later · before 6.6.64
  • linux linux kernel6.7 and later · before 6.12.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.2affected
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before 18fb33df1de83a014d7f784089f9b124facc157faffected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before afc1e3c00b3f5f0b4f1bc3e974fb9803cb938a90affected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before 68e79b848196a0b0ec006009cc69da1f835d1ae8affected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before 022e13518ba6cc1b4fdd291f49e4f57b2d5718e0affected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before 7e3a8ea3d1ada7f707de5d9d504774b4191eab66affected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before f25a9f1df1f6738acf1fa05595fb6060a2c08ff1affected · git
    • 9085daa4abcc3a1c19ae4eb00e609842ef28275a and later · before c174b53e95adf2eece2afc56cd9798374919f99aaffected · git
    • before 5.2not affected · semver
    • 5.4.287 and later · up to and including 5.4.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.123-16.1.123-1
Debian:13linuxbefore 6.12.5-16.12.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-56565Dec 27, 2024 · f2fs: fix to drop all discards after creating snapshot on lvm device
    22Monitor
  • ← EarlierCVE-2024-56566Dec 27, 2024 · mm/slub: Avoid list corruption when removing a slab from the full list
    22Monitor
  • Later →CVE-2024-56568Dec 27, 2024 · iommu/arm-smmu: Defer probe of clients after smmu device bound
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux022e13518ba6cc1b4fdd291f49e4f57b2d5718e0Vendor (CNA)
Linux Linux18fb33df1de83a014d7f784089f9b124facc157fVendor (CNA)
Linux Linux68e79b848196a0b0ec006009cc69da1f835d1ae8Vendor (CNA)
Linux Linux7e3a8ea3d1ada7f707de5d9d504774b4191eab66Vendor (CNA)
Linux Linuxafc1e3c00b3f5f0b4f1bc3e974fb9803cb938a90Vendor (CNA)
Linux Linuxc174b53e95adf2eece2afc56cd9798374919f99aVendor (CNA)
Linux Linuxf25a9f1df1f6738acf1fa05595fb6060a2c08ff1Vendor (CNA)
azl3 kernel 6.6.57.1-7 on Azure Linux 3.06.6.64.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.64.2-1 on Azure Linux 3.06.6.64.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL-Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.176.3-1 on CBL Mariner 2.05.15.176.3-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.123-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-26945240 days apartcrypto: iaa - Fix nr_cpus < nr_iaa case
    33Monitor
  • CVE-2024-566220 days apartscsi: ufs: core: sysfs: Prevent div by zero
    22Monitor
  • CVE-2024-5636915 days apartdrm/modes: Avoid divide by zero harder in drm_mode_vrefresh()
    22Monitor
  • CVE-2024-5791923 days apartdrm/amd/display: fix divide error in DM plane scale calcs
    22Monitor
  • CVE-2024-5792223 days apartdrm/amd/display: Add check for granularity in dml ceil/floor helpers
    22Monitor
  • CVE-2024-5793225 days apartgve: guard XDP xmit NDO on existence of xdp queues
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-369 · Divide By Zero

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records