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NVD / CVE Program· CNA Linux

CVE-2024-47739: padata: use integer wrap around to prevent deadlock on seq_nr overflow

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: 0.67% (FIRST EPSS); higher than 52.2% of all records.
  • 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 1b8cf11b3ca593a8802a51802cd0c28c38501428, 1bd712de96ad7167fe0d608e706cd60587579f16, 46c4079460f4dcaf445860679558eedef4e1bc91; Azure Linux 3.0 ARM 6.6.56.1-5; Azure Linux 3.0 x64 6.6.56.1-5.
  • Severity is disputed: the assigning authority (CNA) scores it 7.5, NVD 5.5.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1b8cf11b3ca593a8802a51802cd0c28c38501428, 1bd712de96ad7167fe0d608e706cd60587579f16, 46c4079460f4dcaf445860679558eedef4e1bc91; Azure Linux 3.0 ARM 6.6.56.1-5; Azure Linux 3.0 x64 6.6.56.1-5 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: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Oct 21, 2024
Updated
Aug 5, 2026
EPSS
0.6% · 52th 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 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
7.5
2.0 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2024-47739

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 and later · before 5.10.227
  • linux linux kernel5.11 and later · before 5.15.168
  • linux linux kernel5.16 and later · before 6.1.113
  • linux linux kernel6.2 and later · before 6.6.54
  • linux linux kernel6.7 and later · before 6.10.13
  • linux linux kernel6.11 and later · before 6.11.2

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

    • 5.4affected
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 46c4079460f4dcaf445860679558eedef4e1bc91affected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 72164d5b648951684b1a593996b37a6083c61d7daffected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before ab205e1c3846326f162180e56825b4ba38ce9c30affected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 1b8cf11b3ca593a8802a51802cd0c28c38501428affected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 9e279e6c1f012b82628b89e1b9c65dbefa8ca25aaffected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 1bd712de96ad7167fe0d608e706cd60587579f16affected · git
    • bfde23ce200e6d33291d29b9b8b60cc2f30f0805 and later · before 9a22b2812393d93d84358a760c347c21939029a6affected · git
    • before 5.4not affected · semver
    • 5.10.227 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.115-16.1.115-1
Debian:13linuxbefore 6.11.2-16.11.2-1

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-2024-47734Oct 21, 2024 · bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
    22Monitor
  • ← EarlierCVE-2024-47738Oct 21, 2024 · wifi: mac80211: don't use rate mask for offchannel TX either
    13Monitor
  • Later →CVE-2024-47740Oct 21, 2024 · f2fs: Require FMODE_WRITE for atomic write ioctls
    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 Linux1b8cf11b3ca593a8802a51802cd0c28c38501428Vendor (CNA)
Linux Linux1bd712de96ad7167fe0d608e706cd60587579f16Vendor (CNA)
Linux Linux46c4079460f4dcaf445860679558eedef4e1bc91Vendor (CNA)
Linux Linux72164d5b648951684b1a593996b37a6083c61d7dVendor (CNA)
Linux Linux9a22b2812393d93d84358a760c347c21939029a6Vendor (CNA)
Linux Linux9e279e6c1f012b82628b89e1b9c65dbefa8ca25aVendor (CNA)
Linux Linuxab205e1c3846326f162180e56825b4ba38ce9c30Vendor (CNA)
Azure Linux 3.0 ARM6.6.56.1-5 · kernelMicrosoft (MSRC)
Azure Linux 3.0 x646.6.56.1-5 · kernelMicrosoft (MSRC)
debian:linux6.1.115-1 · 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.

  • CVE-2026-23457529 days apartnetfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp()
    34Monitor
  • CVE-2022-490300 days apartlibbpf: Handle size overflow for ringbuf mmap
    31Monitor
  • CVE-2024-4213683 days apartcdrom: rearrange last_media_change check to avoid unintentional overflow
    31Monitor
  • CVE-2022-4883797 days apartusb: gadget: rndis: prevent integer overflow in rndis_set_response()
    31Monitor
  • CVE-2024-40994101 days apartptp: fix integer overflow in max_vclocks_store
    31Monitor
  • CVE-2024-41000101 days apartblock/ioctl: prefer different overflow check
    31Monitor

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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-190 · Integer Overflow or Wraparound

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.

ATT&CK techniques

—

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