Linux · Linux Kernel · CVE-2021-46911
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
The issue is related to the ch ktls component of the Linux kernel and is caused by the lack of synchronization locking. This can lead to a kernel panic when taking page refcount is not ideal, especially if an ACK is received during the transmission of an skb. To avoid page cleanup, it is better to take the tx ctx lock for the complete skb transmit.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.