description: A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.
problem types: CWE-833
affected:
{
vendor: n/a
product: Linux kernel (TC subsystem)
versions:
version: Since upstream commit 53592b3 (v4.10-rc1), status: affected
}