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CVE-2024-46752· NVD / CVE Program· CNA Linux

btrfs: replace BUG_ON() with error handling at update_ref_for_cow()

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: 0.24% (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 0fbac73a97286a7ec72229cb9b42d760a2c717ac, 41a0f85e268d72fe04f731b8ceea4748c2d65491, b50857b96429a09fd3beed9f7f21b7bb7c433688.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0fbac73a97286a7ec72229cb9b42d760a2c717ac, 41a0f85e268d72fe04f731b8ceea4748c2d65491, b50857b96429a09fd3beed9f7f21b7bb7c433688 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

In the Linux kernel, the following vulnerability has been resolved: btrfs: replace BUG_ON() with error handling at update_ref_for_cow() Instead of a BUG_ON() just return an error, log an error message and abort the transaction in case we find an extent buffer belonging to the relocation tree that doesn't have the full backref flag set. This is unexpected and should never happen (save for bugs or a potential bad memory).

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 18, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th 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-2024-46752

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 kernelbefore 5.15.167
  • linux linux kernel5.16 and later · before 6.1.110
  • linux linux kernel6.2 and later · before 6.6.51
  • linux linux kernel6.7 and later · before 6.10.10

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

    • 2.6.31affected
    • 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 and later · before b50857b96429a09fd3beed9f7f21b7bb7c433688affected · git
    • 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 and later · before 0fbac73a97286a7ec72229cb9b42d760a2c717acaffected · git
    • 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 and later · before 41a0f85e268d72fe04f731b8ceea4748c2d65491affected · git
    • 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 and later · before f895db00c65e5d77c437cce946da9ec29dcdf563affected · git
    • 5d4f98a28c7d334091c1b7744f48a1acdd2a4ae0 and later · before b56329a782314fde5b61058e2a25097af7ccb675affected · git
    • before 2.6.31not affected · semver
    • 5.15.167 and later · up to and including 5.15.*not affected · semver
    • 6.1.110 and later · up to and including 6.1.*not affected · semver
    • 6.6.51 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.112-16.1.112-1
Debian:13linuxbefore 6.10.11-16.10.11-1

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  • 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
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
    77This week
  • CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
    77This week

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 Linux0fbac73a97286a7ec72229cb9b42d760a2c717acVendor (CNA)
Linux Linux41a0f85e268d72fe04f731b8ceea4748c2d65491Vendor (CNA)
Linux Linuxb50857b96429a09fd3beed9f7f21b7bb7c433688Vendor (CNA)
Linux Linuxb56329a782314fde5b61058e2a25097af7ccb675Vendor (CNA)
Linux Linuxf895db00c65e5d77c437cce946da9ec29dcdf563Vendor (CNA)
debian:linux6.1.112-1 · 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.

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-2025-38385310 days apartnet: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect
    31Monitor
  • CVE-2024-56757110 days apartBluetooth: btusb: mediatek: add intf release flow when usb disconnect
    22Monitor
  • CVE-2024-57879115 days apartBluetooth: iso: Always release hdev at the end of iso_listen_bis
    22Monitor
  • CVE-2022-48661143 days apartgpio: mockup: Fix potential resource leakage when register a chip
    22Monitor
  • CVE-2024-26757168 days apartmd: Don't ignore read-only array in md_check_recovery()
    22Monitor
  • CVE-2022-49745190 days apartfpga: m10bmc-sec: Fix probe rollback
    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
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

CVSS vector

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

nvd-primary

Change log

  1. Fix✗ → ✓

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

References

All records