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NVD / CVE Program· CNA Linux

CVE-2024-35983: bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS

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 15aa09d6d84629eb5296de30ac0aa19a33512f16, 5.10.216, 5.15.158.

Low priority for now. Upgrade to Linux Linux 15aa09d6d84629eb5296de30ac0aa19a33512f16, 5.10.216, 5.15.158 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: bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS bits_per() rounds up to the next power of two when passed a power of two. This causes crashes on some machines and configurations.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 20, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 14th percentile
CWE
—

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-2024-35983

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 kernel5.4.274 and later · before 5.4.275
  • linux linux kernel5.10.215 and later · before 5.10.216
  • linux linux kernel5.15.154 and later · before 5.15.158
  • linux linux kernel6.1.84 and later · before 6.1.90
  • linux linux kernel6.6.24 and later · before 6.6.30
  • linux linux kernel6.7.12 and later · before 6.8
  • linux linux kernel6.8.3 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

    • b2e1b090a590d41abe647eadb6bf2a5dc47b63abaffected
    • d6077e0d38b4953c863d0db4a5b3f41d21e0d546 and later · before d34a516f2635090d36a306f84573e8de3d7374ceaffected · git
    • 83a2275f9d3230c761014b1467888b1ef469be74 and later · before 66297b2ceda841f809637731d287bda3a93b49d8affected · git
    • d2a7a81088c6abe778b0a93a7eeb79487a943818 and later · before 93ba36238db6a74a82feb3dc476e25ea424ad630affected · git
    • 428ca0000f0abd5c99354c52a36becf2b815ca21 and later · before 9b7c5004d7c5ae062134052a85290869a015814caffected · git
    • b46c822f8b555b9513df44047b0e72c06720df62 and later · before 15aa09d6d84629eb5296de30ac0aa19a33512f16affected · git
    • cf778fff03be1ee88c49b72959650147573c3301 and later · before ebfe41889b762f1933c6762f6624b9724a25bee0affected · git
    • f2d5dcb48f7ba9e3ff249d58fc1fa963d374e66a and later · before 5af385f5f4cddf908f663974847a4083b2ff2c79affected · git
    • 6.7.12 and later · before 6.8affected · semver
    • 5.4.274 and later · before 5.4.275affected · 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-2024-35978May 20, 2024 · Bluetooth: Fix memory leak in hci_req_sync_complete()
    22Monitor
  • ← EarlierCVE-2024-35982May 20, 2024 · batman-adv: Avoid infinite loop trying to resize local TT
    22Monitor
  • Later →CVE-2024-35984May 20, 2024 · i2c: smbus: fix NULL function pointer dereference
    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 Linux15aa09d6d84629eb5296de30ac0aa19a33512f16Vendor (CNA)
Linux Linux5.10.216Vendor (CNA)
Linux Linux5.15.158Vendor (CNA)
Linux Linux5.4.275Vendor (CNA)
Linux Linux5af385f5f4cddf908f663974847a4083b2ff2c79Vendor (CNA)
Linux Linux6.1.90Vendor (CNA)
Linux Linux6.6.30Vendor (CNA)
Linux Linux6.8Vendor (CNA)
Linux Linux6.8.9Vendor (CNA)
Linux Linux66297b2ceda841f809637731d287bda3a93b49d8Vendor (CNA)
Linux Linux93ba36238db6a74a82feb3dc476e25ea424ad630Vendor (CNA)
Linux Linux9b7c5004d7c5ae062134052a85290869a015814cVendor (CNA)
Linux Linuxd34a516f2635090d36a306f84573e8de3d7374ceVendor (CNA)
Linux Linuxebfe41889b762f1933c6762f6624b9724a25bee0Vendor (CNA)
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)

—

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 (9 more)

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

All records