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NVD / CVE Program· CNA Linux

CVE-2024-53690: nilfs2: prevent use of deleted inode

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: 0.25% (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 284760b320a0bac411b18108316939707dccb12b, 55e4baa0d32f0530ddc64c26620e1f2f8fa2724c, 5d4ed71327b0b5f3b179a19dc3c06be9509ab3db.

Low priority for now. Upgrade to Linux Linux 284760b320a0bac411b18108316939707dccb12b, 55e4baa0d32f0530ddc64c26620e1f2f8fa2724c, 5d4ed71327b0b5f3b179a19dc3c06be9509ab3db 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: prevent use of deleted inode syzbot reported a WARNING in nilfs_rmdir. [1] Because the inode bitmap is corrupted, an inode with an inode number that should exist as a ".nilfs" file was reassigned by nilfs_mkdir for "file0", causing an inode duplication during execution. And this causes an underflow of i_nlink in rmdir operations. The inode is used twice by the same task to unmount and remove directories ".nilfs" and "file0", it trigger warning in nilfs_rmdir. Avoid to this issue, check i_nlink in nilfs_iget(), if it is 0, it means that this inode has been deleted, and iput is executed to reclaim it. [1] WARNING: CPU: 1 PID: 5824 at fs/inode.c:407 drop_nlink+0xc4/0x110 fs/inode.c:407 ... Call Trace: <TASK> nilfs_rmdir+0x1b0/0x250 fs/nilfs2/namei.c:342 vfs_rmdir+0x3a3/0x510 fs/namei.c:4394 do_rmdir+0x3b5/0x580 fs/namei.c:4453 __do_sys_rmdir fs/namei.c:4472 [inline] __se_sys_rmdir fs/namei.c:4470 [inline] __x64_sys_rmdir+0x47/0x50 fs/namei.c:4470 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jan 11, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 17th 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%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

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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 5.4.289
  • linux linux kernel5.5 and later · before 5.10.233
  • linux linux kernel5.11 and later · before 5.15.176
  • linux linux kernel5.16 and later · before 6.1.122
  • linux linux kernel6.2 and later · before 6.6.68
  • linux linux kernel6.7 and later · before 6.12.7
  • linux linux kernel6.13

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
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before 55e4baa0d32f0530ddc64c26620e1f2f8fa2724caffected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before 5d4ed71327b0b5f3b179a19dc3c06be9509ab3dbaffected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before 912188316a8c9e41b8c1603c2276a05043b14f96affected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before ef942d233643777f7b2a5deef620e82942983143affected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before 284760b320a0bac411b18108316939707dccb12baffected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before ff561987ff12b6a3233431ff659b5d332e22f153affected · git
    • d25006523d0b9e49fd097b2e974e7c8c05bd7f54 and later · before 901ce9705fbb9f330ff1f19600e5daf9770b0175affected · git
    • before 2.6.30not affected · semver
    • 5.4.289 and later · up to and including 5.4.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.123-16.1.123-1
Debian:13linuxbefore 6.12.8-16.12.8-1

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-2024-53682Jan 11, 2025 · regulator: axp20x: AXP717: set ramp_delay
    22Monitor
  • ← EarlierCVE-2024-53687Jan 11, 2025 · riscv: Fix IPIs usage in kfence_protect_page()
    22Monitor
  • Later →CVE-2024-54191Jan 11, 2025 · Bluetooth: iso: Fix circular lock in iso_conn_big_sync
    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 Linux284760b320a0bac411b18108316939707dccb12bVendor (CNA)
Linux Linux55e4baa0d32f0530ddc64c26620e1f2f8fa2724cVendor (CNA)
Linux Linux5d4ed71327b0b5f3b179a19dc3c06be9509ab3dbVendor (CNA)
Linux Linux901ce9705fbb9f330ff1f19600e5daf9770b0175Vendor (CNA)
Linux Linux912188316a8c9e41b8c1603c2276a05043b14f96Vendor (CNA)
Linux Linuxef942d233643777f7b2a5deef620e82942983143Vendor (CNA)
Linux Linuxff561987ff12b6a3233431ff659b5d332e22f153Vendor (CNA)
debian:linux6.1.123-1 · 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 (8 more)

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

All records