Linux · Linux Kernel · CVE-2021-46911
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
A synchronization lock issue exists in the `ch ktls` component. The process of taking page refcounts can lead to a kernel panic, potentially allowing an attacker to cause a denial of service. This occurs because page cleanup may happen if an ACK is received during the transmission of a socket buffer (skb). To prevent this, the `tx ctx` lock should be used for the entire skb transmission.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.