CVE-2024-47690

Kernel panic via F2FS remount race

Published Oct 21, 2024 · Updated Aug 5, 2026

Denial of service in the Linux kernel F2FS implementation allows local users to trigger a kernel panic through a corrupted directory. During f2fs_lookup(), online repair writes dirty data and metadata while racing with a read-only remount; checkpointing then skips the dirty inode. A local low-privileged user must access a corrupted F2FS directory and win the remount race, causing a host-wide service interruption.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel F2FS implementation allows local users to trigger a kernel panic through a corrupted directory. During f2fs_lookup(), online repair writes dirty data and metadata while racing with a read-only remount; checkpointing then skips the dirty inode. A local low-privileged user must access a corrupted F2FS directory and win the remount race, causing a host-wide service interruption.

The record

CVE
CVE-2024-47690
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.1
  2. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <884ee6dc85b959bc152f15bca80c30f06069e6c4
  3. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <8be95cd607478d85fa4626e86f811e785905bcbf
  4. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <bcefd0b0611f35b560d0a7281d87529fbe7a1e32
  5. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <e8d64f598eeb079c42a52deaa3a91312c736a49d
  6. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <f4746f2d79507f65cfbde11d3c39ee8338aa50af
  7. Affected versionversion=510022a85839a8409d1e6a519bb86ce71a84f30a <f9ce2f550d53d044ecfb5ce996406cf42cd6b84d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.1; version=510022a85839a8409d1e6a519bb86ce71a84f30a <884ee6dc85b959bc152f15bca80c30f06069e6c4; version=510022a85839a8409d1e6a519bb86ce71a84f30a <8be95cd607478d85fa4626e86f811e785905bcbf; version=510022a85839a8409d1e6a519bb86ce71a84f30a <bcefd0b0611f35b560d0a7281d87529fbe7a1e32; version=510022a85839a8409d1e6a519bb86ce71a84f30a <e8d64f598eeb079c42a52deaa3a91312c736a49d; version=510022a85839a8409d1e6a519bb86ce71a84f30a <f4746f2d79507f65cfbde11d3c39ee8338aa50af; version=510022a85839a8409d1e6a519bb86ce71a84f30a <f9ce2f550d53d044ecfb5ce996406cf42cd6b84d

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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