CVE-2019-3837: Linux Kernel
Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.
It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as shipped in RHEL6 is thread-unsafe. So an unprivileged multi-threaded userspace application calling recvmsg() for the same network socket in parallel executed on ioatdma-enabled hardware with net_dma enabled can leak the memory, crash the host leading to a denial-of-service or cause a random memory corruption.
Affected products
Published 2019-04-11. Last modified 2026-06-17.