CVE-2024-39282

Kernel crash via freed FSM completion object

Published Jan 15, 2025 · Updated Aug 5, 2026

Use-after-free in the Linux kernel t7xx WWAN driver allows local users to crash the kernel during an FSM command timeout. The FSM worker calls complete_all after the waiting main thread times out and releases its stack-based completion object. Exploitation requires low-privileged local access and a t7xx device state transition that outlasts the command timeout; the resulting page fault interrupts service.

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

Use-after-free in the Linux kernel t7xx WWAN driver allows local users to crash the kernel during an FSM command timeout. The FSM worker calls complete_all after the waiting main thread times out and releases its stack-based completion object. Exploitation requires low-privileged local access and a t7xx device state transition that outlasts the command timeout; the resulting page fault interrupts service.

The record

CVE
CVE-2024-39282
Published
Jan 15, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE 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

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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=13e920d93e37fcaef4a9309515798a3cae9dcf19 <0cd3bde081cd3452c875fa1e5c55834c670d6e05
  2. Affected versionversion=13e920d93e37fcaef4a9309515798a3cae9dcf19 <4f619d518db9cd1a933c3a095a5f95d0c1584ae8
  3. Affected versionversion=13e920d93e37fcaef4a9309515798a3cae9dcf19 <b8ab9bd0c8855cd5a6f4e0265083576257ff3fc5
  4. Affected versionversion=13e920d93e37fcaef4a9309515798a3cae9dcf19 <e6e6882a1590cbdaca77a31a02f4954327237e14
  5. Affected versionversion=5.19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=13e920d93e37fcaef4a9309515798a3cae9dcf19 <0cd3bde081cd3452c875fa1e5c55834c670d6e05; version=13e920d93e37fcaef4a9309515798a3cae9dcf19 <4f619d518db9cd1a933c3a095a5f95d0c1584ae8; version=13e920d93e37fcaef4a9309515798a3cae9dcf19 <b8ab9bd0c8855cd5a6f4e0265083576257ff3fc5; version=13e920d93e37fcaef4a9309515798a3cae9dcf19 <e6e6882a1590cbdaca77a31a02f4954327237e14; version=5.19

Published CVSS scores

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

T1499Endpoint Denial of Service

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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