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Review reviewHigh

CVE-2024-50276

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: net: vertexcom: mse102x: Fix possible double free of TX skb The scope of the TX skb is wider than just mse102x_tx_frame_spi(), so in case the TX skb room needs to be expanded, we should free the the temporary skb instead of the original skb. Otherwise the original TX skb pointer would be freed again in mse102x_tx_work(), which leads to crashes: Internal error: Oops: 0000000096000004 [#2] PREEMPT SMP CPU: 0 PID: 712 Comm: kworker/0:1 Tainted: G D 6.6.23 Hardware name: chargebyte Charge SOM DC-ONE (DT) Workqueue: events mse10...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2024.11.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net: vertexcom: mse102x: Fix possible double free of TX skb The scope of the TX skb is wider than just mse102x_tx_frame_spi(), so in case the TX skb room needs to be expanded, we should free the the temporary skb instead of the original skb. Otherwise the original TX skb pointer would be freed again in mse102x_tx_work(), which leads to crashes: Internal error: Oops: 0000000096000004 [#2] PREEMPT SMP CPU: 0 PID: 712 Comm: kworker/0:1 Tainted: G D 6.6.23 Hardware name: chargebyte Charge SOM DC-ONE (DT) Workqueue: events mse10...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c < 2cf0e77f5a0aa1ff336aa71743eda55c73902187, >= 2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c < 1325e838089da25217f4b403318a270fcdf88f34, >= 2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c < 91c9daa21f3ff8668f9e1d6c860024ce7ad64137, >= 2f207cbf0dd44278af2aa3ff0fc95b0f97cc4e4c < 1f26339b2ed63d1e8e18a18674fb73a392f3660e, >= 5.17, >= 5.17 < 6.1.117, >= 6.2 < 6.6.61, >= 6.7 < 6.11.8, 6.12
Fixed versions
6.1.117, 6.6.61, 6.11.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-415
CVE-2024-50276 — Linux Linux, linux kernel | SECUFOCUS NOW