CVE-2024-47680

Kernel crash via unchecked conventional-zone discard

Published Oct 21, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux kernel F2FS 6.10 through 6.11.1 allows local users to crash the kernel during unmount. On conventional zones, f2fs_bdev_support_discard treats any zoned device as discard-capable, so __submit_discard_cmd calls __blkdev_issue_discard and passes its NULL bio to f2fs_bug_on. The fault requires an F2FS filesystem on a zoned block device with conventional zones that lacks discard support, and the resulting BUG interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux kernel F2FS 6.10 through 6.11.1 allows local users to crash the kernel during unmount. On conventional zones, f2fs_bdev_support_discard treats any zoned device as discard-capable, so __submit_discard_cmd calls __blkdev_issue_discard and passes its NULL bio to f2fs_bug_on. The fault requires an F2FS filesystem on a zoned block device with conventional zones that lacks discard support, and the resulting BUG interrupts the host.

The record

CVE
CVE-2024-47680
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=30f1e724142242a453f92d90b33e030014900bf0 <43aec4d01bd2ce961817a777b3846f8318f398e4
  2. Affected versionversion=30f1e724142242a453f92d90b33e030014900bf0 <7bd7ce68ddad5a28565e42ef21cacaff113773a9
  3. Affected versionversion=30f1e724142242a453f92d90b33e030014900bf0 <d2352b57897f6a3349666fc318dcbec99092c6a5
  4. Affected versionversion=6.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=30f1e724142242a453f92d90b33e030014900bf0 <43aec4d01bd2ce961817a777b3846f8318f398e4; version=30f1e724142242a453f92d90b33e030014900bf0 <7bd7ce68ddad5a28565e42ef21cacaff113773a9; version=30f1e724142242a453f92d90b33e030014900bf0 <d2352b57897f6a3349666fc318dcbec99092c6a5; version=6.10

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

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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

CWE-476NULL Pointer Dereference
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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