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.
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
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
Redhat Information
No data.