CVE intelligence

CVE-2024-50001

Vulnerability intelligence

Published Oct 21, 2024Sources checked Oct 24, 2026

5.5MEDIUMCVSS out of 10

What this means

Review the available evidence

CVE-2024-50001 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Aug 12, 2026

CBL-Mariner Releases

Vendor-listed releases

5.15.173.1-1
6.6.57.1-2

CISA KEVNot listedBased on the latest collected catalog

EPSS0.3%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2024-50001?

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5: Fix error path in multi-packet WQE transmit

Remove the erroneous unmap in case no DMA mapping was established

The multi-packet WQE transmit code attempts to obtain a DMA mapping for the skb. This could fail, e.g. under memory pressure, when the IOMMU driver just can't allocate more memory for page tables.

While the code tries to handle this in the path below the err_unmap label it erroneously unmaps one entry from the sq's FIFO list of active mappings. Since the current map attempt failed this unmap is removing some random DMA mapping that might still be required.

If the PCI function now presents that IOVA, the IOMMU may assumes a rogue DMA access and e.g. on s390 puts the PCI function in error state.

The erroneous behavior was seen in a stress-test environment that created memory pressure.

Source: NVD