CVE-2022-50710
Unknown Unknown - Not Provided
Null Pointer Dereference in Linux ice Driver Tx Timestamp Handling

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ice: set tx_tstamps when creating new Tx rings via ethtool When the user changes the number of queues via ethtool, the driver allocates new rings. This allocation did not initialize tx_tstamps. This results in the tx_tstamps field being zero (due to kcalloc allocation), and would result in a NULL pointer dereference when attempting a transmit timestamp on the new ring.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50710
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability occurs in the Linux kernel's ice driver when the user changes the number of queues via ethtool. The driver allocates new transmit (Tx) rings but does not initialize the tx_tstamps field. Because tx_tstamps remains zero (due to kcalloc allocation), attempting to use a transmit timestamp on the new ring causes a NULL pointer dereference, potentially leading to a kernel crash or instability.

Impact Analysis

This vulnerability can cause a NULL pointer dereference in the Linux kernel when transmit timestamps are used on newly allocated Tx rings, potentially leading to kernel crashes or system instability. This can disrupt network operations and affect system reliability.

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