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NVD / CVE Program· CNA Linux

CVE-2024-37078: nilfs2: fix potential kernel bug due to lack of writeback flag waiting

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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 0ecfe3a92869a59668d27228dabbd7965e83567f, 1f3bff69f1214fe03a02bc650d5bbfaa6e65ae7d, 271dcd977ccda8c7a26e360425ae7b4db7d2ecc0.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0ecfe3a92869a59668d27228dabbd7965e83567f, 1f3bff69f1214fe03a02bc650d5bbfaa6e65ae7d, 271dcd977ccda8c7a26e360425ae7b4db7d2ecc0 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: nilfs2: fix potential kernel bug due to lack of writeback flag waiting Destructive writes to a block device on which nilfs2 is mounted can cause a kernel bug in the folio/page writeback start routine or writeback end routine (__folio_start_writeback in the log below): kernel BUG at mm/page-writeback.c:3070! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI ... RIP: 0010:__folio_start_writeback+0xbaa/0x10e0 Code: 25 ff 0f 00 00 0f 84 18 01 00 00 e8 40 ca c6 ff e9 17 f6 ff ff e8 36 ca c6 ff 4c 89 f7 48 c7 c6 80 c0 12 84 e8 e7 b3 0f 00 90 <0f> 0b e8 1f ca c6 ff 4c 89 f7 48 c7 c6 a0 c6 12 84 e8 d0 b3 0f 00 ... Call Trace: <TASK> nilfs_segctor_do_construct+0x4654/0x69d0 [nilfs2] nilfs_segctor_construct+0x181/0x6b0 [nilfs2] nilfs_segctor_thread+0x548/0x11c0 [nilfs2] kthread+0x2f0/0x390 ret_from_fork+0x4b/0x80 ret_from_fork_asm+0x1a/0x30 </TASK> This is because when the log writer starts a writeback for segment summary blocks or a super root block that use the backing device's page cache, it does not wait for the ongoing folio/page writeback, resulting in an inconsistent writeback state. Fix this issue by waiting for ongoing writebacks when putting folios/pages on the backing device into writeback state.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Jun 25, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 17th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 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.

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2024-37078

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 kernel2.6.30 and later · before 4.19.317
  • linux linux kernel4.20 and later · before 5.4.279
  • linux linux kernel5.5 and later · before 5.10.221
  • linux linux kernel5.11 and later · before 5.15.162
  • linux linux kernel5.16 and later · before 6.1.95
  • linux linux kernel6.2 and later · before 6.6.35
  • linux linux kernel6.7 and later · before 6.9.5
  • linux linux kernel6.10

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

    • 2.6.30affected
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 95f6f81e50d858a7c9aa7c795ec14a0ac3819118affected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before a75b8f493dfc48aa38c518430bd9e03b53bffebeaffected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 0ecfe3a92869a59668d27228dabbd7965e83567faffected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 33900d7eae616647e179eee1c66ebe654ee39627affected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 271dcd977ccda8c7a26e360425ae7b4db7d2ecc0affected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 614d397be0cf43412b3f94a0f6460eddced8ce92affected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before 1f3bff69f1214fe03a02bc650d5bbfaa6e65ae7daffected · git
    • 9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453 and later · before a4ca369ca221bb7e06c725792ac107f0e48e82e7affected · git
    • before 2.6.30not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.99-16.1.99-1
Debian:13linuxbefore 6.9.7-16.9.7-1

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-2021-4440Jun 25, 2024 · x86/xen: Drop USERGS_SYSRET64 paravirt call
    35Monitor
  • ← EarlierCVE-2022-48772Jun 25, 2024 · media: lgdt3306a: Add a check against null-pointer-def
    22Monitor
  • Later →CVE-2024-37354Jun 25, 2024 · btrfs: fix crash on racing fsync and size-extending write into prealloc
    18Monitor

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 Linux0ecfe3a92869a59668d27228dabbd7965e83567fVendor (CNA)
Linux Linux1f3bff69f1214fe03a02bc650d5bbfaa6e65ae7dVendor (CNA)
Linux Linux271dcd977ccda8c7a26e360425ae7b4db7d2ecc0Vendor (CNA)
Linux Linux33900d7eae616647e179eee1c66ebe654ee39627Vendor (CNA)
Linux Linux614d397be0cf43412b3f94a0f6460eddced8ce92Vendor (CNA)
Linux Linux95f6f81e50d858a7c9aa7c795ec14a0ac3819118Vendor (CNA)
Linux Linuxa4ca369ca221bb7e06c725792ac107f0e48e82e7Vendor (CNA)
Linux Linuxa75b8f493dfc48aa38c518430bd9e03b53bffebeVendor (CNA)
debian:linux6.1.99-1 · 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).

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
high · data or configuration can be modified
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
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 (8 more)

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

All records