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.

References 4

• git.kernel.org https://git.kernel.org/stable/c/13180cb88a7be5ee389f65f6ab9f78e46f7722b2
• git.kernel.org https://git.kernel.org/stable/c/624f03a027f2b18647cc4f1a7a81920a1e4e0201
• git.kernel.org https://git.kernel.org/stable/c/9eb5fff6b0e78819c758892282da5faa915724d0
• git.kernel.org https://git.kernel.org/stable/c/b3b173745c8cab1e24d6821488b60abed3acb24d

Remediation