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.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3837 Issue Tracking Patch Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2019-04-11T14:37:26

Updated: 2020-12-04T18:00:59

Reserved: 2019-01-03T00:00:00


Link: CVE-2019-3837

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-04-11T15:29:00.447

Modified: 2022-12-02T23:05:20.907


Link: CVE-2019-3837

JSON object: View

cve-icon Redhat Information

No data.