CVE-2023-54182

Kernel panic via unchecked secondary-device read-only state

Published Dec 30, 2025 · Updated Dec 30, 2025

Denial of service in Linux kernel F2FS allows local users to panic the kernel by writing to an inconsistently remounted volume. f2fs_remount() checks only the primary device's read-only status, allowing a multi-device volume with a read-only secondary device to enter an inconsistent read-write state. An administrator must first create that mount state; a local user with write access can then exceed inline-data capacity, causing f2fs_write_inline_data() to hit a kernel BUG and potentially corrupt filesystem metadata.

CVSS severity7.1
High
EPSS probability0.15%
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 Linux kernel F2FS allows local users to panic the kernel by writing to an inconsistently remounted volume. f2fs_remount() checks only the primary device's read-only status, allowing a multi-device volume with a read-only secondary device to enter an inconsistent read-write state. An administrator must first create that mount state; a local user with write access can then exceed inline-data capacity, causing f2fs_write_inline_data() to hit a kernel BUG and potentially corrupt filesystem metadata.

The record

CVE
CVE-2023-54182
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d78dfefcde9d311284434560d69c0478c55a657e
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <da8c535b28696017e5d1532d12ea78e836432d9e
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e05d63f8b48aad4613bd582c945bee41e2dd7255
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e2759a59a4cc96af712084e9db7065c858c4fe9f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d78dfefcde9d311284434560d69c0478c55a657e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <da8c535b28696017e5d1532d12ea78e836432d9e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e05d63f8b48aad4613bd582c945bee41e2dd7255; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e2759a59a4cc96af712084e9db7065c858c4fe9f

Published CVSS scores

7.1Linux CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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