CVE-2024-50276

Kernel crash via TX buffer double free

Published Nov 19, 2024 · Updated Aug 5, 2026

Double free in the mse102x Ethernet driver in affected Linux kernels allows local users to crash the kernel through transmitted frames. When mse102x_tx_frame_spi expands TX buffer room, it frees the original skb instead of the temporary skb, and mse102x_tx_work later frees the original again. Exploitation requires low-privileged local access, an active mse102x device, and a transmission that forces buffer expansion; the observed result is a kernel Oops and service interruption.

CVSS severity7.8
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the mse102x Ethernet driver in affected Linux kernels allows local users to crash the kernel through transmitted frames. When mse102x_tx_frame_spi expands TX buffer room, it frees the original skb instead of the temporary skb, and mse102x_tx_work later frees the original again. Exploitation requires low-privileged local access, an active mse102x device, and a transmission that forces buffer expansion; the observed result is a kernel Oops and service interruption.

The record

CVE
CVE-2024-50276
Published
Nov 19, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 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

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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=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <1325e838089da25217f4b403318a270fcdf88f34
  2. Affected versionversion=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <1f26339b2ed63d1e8e18a18674fb73a392f3660e
  3. Affected versionversion=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <2cf0e77f5a0aa1ff336aa71743eda55c73902187
  4. Affected versionversion=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <91c9daa21f3ff8668f9e1d6c860024ce7ad64137
  5. Affected versionversion=5.17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <1325e838089da25217f4b403318a270fcdf88f34; version=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <1f26339b2ed63d1e8e18a18674fb73a392f3660e; version=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <2cf0e77f5a0aa1ff336aa71743eda55c73902187; version=2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c <91c9daa21f3ff8668f9e1d6c860024ce7ad64137; version=5.17

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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

CWE-415Double Free
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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