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NVD / CVE Program· CNA Linux

CVE-2024-35984: i2c: smbus: fix NULL function pointer dereference

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: 0.25% (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 357c64ef1ef39b1e7cd91ab6bdd304d043702c83, 40f1d79f07b49c8a64a861706e5163f2db4bd95d, 4e75e222d397c6752b229ed72fc4644c8c36ecde; azl3 kernel 6.6.29.1-5 on Azure Linux 3.0 6.6.35.1-4; azl3 kernel 6.6.35.1-4 on Azure Linux 3.0 6.6.35.1-4.

Low priority for now. Upgrade to Linux Linux 357c64ef1ef39b1e7cd91ab6bdd304d043702c83, 40f1d79f07b49c8a64a861706e5163f2db4bd95d, 4e75e222d397c6752b229ed72fc4644c8c36ecde; azl3 kernel 6.6.29.1-5 on Azure Linux 3.0 6.6.35.1-4; azl3 kernel 6.6.35.1-4 on Azure Linux 3.0 6.6.35.1-4 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: i2c: smbus: fix NULL function pointer dereference Baruch reported an OOPS when using the designware controller as target only. Target-only modes break the assumption of one transfer function always being available. Fix this by always checking the pointer in __i2c_transfer. [wsa: dropped the simplification in core-smbus to avoid theoretical regressions]

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 20, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 17th 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-2024-35984

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 kernel3.19 and later · before 4.19.313
  • linux linux kernel4.20 and later · before 5.4.275
  • linux linux kernel5.5 and later · before 5.10.216
  • linux linux kernel5.11 and later · before 5.15.158
  • linux linux kernel5.16 and later · before 6.1.90
  • linux linux kernel6.2 and later · before 6.6.30
  • linux linux kernel6.7 and later · before 6.8.9

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

    • 4.19affected
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 40f1d79f07b49c8a64a861706e5163f2db4bd95daffected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before ad3c3ac7a03be3697114f781193dd3e9d97e6e23affected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 5fd72404587d7db4acb2d241fd8c387afb0a7aecaffected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 5a09eae9a7db597fe0c1fc91636205b4a25d2620affected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 4e75e222d397c6752b229ed72fc4644c8c36ecdeaffected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before e3425674ff68dc521c57c6eabad0cbd20a027d85affected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 357c64ef1ef39b1e7cd91ab6bdd304d043702c83affected · git
    • 63453b59e41173241c4efe9335815f6432fa8586 and later · before 91811a31b68d3765b3065f4bb6d7d6d84a7cfc9faffected · git
    • before 4.19not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.90-16.1.90-1
Debian:13linuxbefore 6.8.9-16.8.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2024-35982May 20, 2024 · batman-adv: Avoid infinite loop trying to resize local TT
    22Monitor
  • ← EarlierCVE-2024-35983May 20, 2024 · bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
    22Monitor
  • Later →CVE-2024-35988May 20, 2024 · riscv: Fix TASK_SIZE on 64-bit NOMMU
    22Monitor

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 Linux357c64ef1ef39b1e7cd91ab6bdd304d043702c83Vendor (CNA)
Linux Linux40f1d79f07b49c8a64a861706e5163f2db4bd95dVendor (CNA)
Linux Linux4e75e222d397c6752b229ed72fc4644c8c36ecdeVendor (CNA)
Linux Linux5a09eae9a7db597fe0c1fc91636205b4a25d2620Vendor (CNA)
Linux Linux5fd72404587d7db4acb2d241fd8c387afb0a7aecVendor (CNA)
Linux Linux91811a31b68d3765b3065f4bb6d7d6d84a7cfc9fVendor (CNA)
Linux Linuxad3c3ac7a03be3697114f781193dd3e9d97e6e23Vendor (CNA)
Linux Linuxe3425674ff68dc521c57c6eabad0cbd20a027d85Vendor (CNA)
azl3 kernel 6.6.29.1-5 on Azure Linux 3.06.6.35.1-4 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.35.1-4 on Azure Linux 3.06.6.35.1-4 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.153.1-2 on CBL Mariner 2.05.15.158.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.158.1-1 on CBL Mariner 2.05.15.158.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.90-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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.

No nightly-computed relations.

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-476 · NULL Pointer Dereference

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 (11 more)

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

All records