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NVD / CVE Program· CNA Linux

CVE-2024-35935: btrfs: send: handle path ref underflow in header iterate_inode_ref()

Noroxi assessment

Priority: Monitor (action score 13/100)

  • 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: 0.22% (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 024529c27c8b4b273325a169e078337c8279e229, 03938619a1e718b6168ae4528e1b0f979293f1a5, 2f6174fd4ccf403b42b3d5f0d1b6b496a0e5330a.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 024529c27c8b4b273325a169e078337c8279e229, 03938619a1e718b6168ae4528e1b0f979293f1a5, 2f6174fd4ccf403b42b3d5f0d1b6b496a0e5330a 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: btrfs: send: handle path ref underflow in header iterate_inode_ref() Change BUG_ON to proper error handling if building the path buffer fails. The pointers are not printed so we don't accidentally leak kernel addresses.

LowCVSS 3.3 · v3.1—No exploit Fix available
Published
May 19, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

Action score

13

Monitor

Low priority for now.

CVSS
13 / 40 · 3.3 / 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-2024-35935

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
debiandebian linux

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.274
  • linux linux kernel5.5 and later · before 5.10.215
  • linux linux kernel5.11 and later · before 5.15.155
  • linux linux kernelbefore 4.19.312
  • linux linux kernel6.2 and later · before 6.6.27
  • linux linux kernel6.7 and later · before 6.8.6
  • linux linux kernel5.16 and later · before 6.1.86

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

    • 3.6affected
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before be2b6bcc936ae17f42fff6494106a5660b35d8d3affected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 024529c27c8b4b273325a169e078337c8279e229affected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 4720d590c4cb5d9ffa0060b89743651cc7e995f9affected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 2f6174fd4ccf403b42b3d5f0d1b6b496a0e5330aaffected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 9ae356c627b493323e1433dcb27a26917668c07caffected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before c1363ed8867b81ea169fba2ccc14af96a85ed183affected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 03938619a1e718b6168ae4528e1b0f979293f1a5affected · git
    • 31db9f7c23fbf7e95026143f79645de6507b583b and later · before 3c6ee34c6f9cd12802326da26631232a61743501affected · git
    • before 3.6not 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-2024-35933May 19, 2024 · Bluetooth: btintel: Fix null ptr deref in btintel_read_version
    22Monitor
  • ← EarlierCVE-2024-35934May 19, 2024 · net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list()
    22Monitor
  • Later →CVE-2024-35936May 19, 2024 · btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()
    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 Linux024529c27c8b4b273325a169e078337c8279e229Vendor (CNA)
Linux Linux03938619a1e718b6168ae4528e1b0f979293f1a5Vendor (CNA)
Linux Linux2f6174fd4ccf403b42b3d5f0d1b6b496a0e5330aVendor (CNA)
Linux Linux3c6ee34c6f9cd12802326da26631232a61743501Vendor (CNA)
Linux Linux4720d590c4cb5d9ffa0060b89743651cc7e995f9Vendor (CNA)
Linux Linux9ae356c627b493323e1433dcb27a26917668c07cVendor (CNA)
Linux Linuxbe2b6bcc936ae17f42fff6494106a5660b35d8d3Vendor (CNA)
Linux Linuxc1363ed8867b81ea169fba2ccc14af96a85ed183Vendor (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.

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-2021-473812 days apartASoC: SOF: Fix DSP oops stack dump output contents
    22Monitor
  • CVE-2021-4716155 days apartspi: spi-fsl-dspi: Fix a resource leak in an error handling path
    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).

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
low · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-209 · Generation of Error Message Containing Sensitive Information

CVSS vector

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

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 (10 more)

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

All records