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.
CVSS Details
- CVSS 3.1 Base Score: 6.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-linux | Jul 30, 2024 | Apr 11, 2019 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Apr 11, 2019 |
| Suse | — | suse-upgrade-kernel-defaultsuse-upgrade-kernel-default-basesuse-upgrade-kernel-default-develsuse-upgrade-kernel-ec2suse-upgrade-kernel-ec2-basesuse-upgrade-kernel-ec2-develsuse-upgrade-kernel-sourcesuse-upgrade-kernel-symssuse-upgrade-kernel-tracesuse-upgrade-kernel-trace-basesuse-upgrade-kernel-trace-develsuse-upgrade-kernel-xensuse-upgrade-kernel-xen-basesuse-upgrade-kernel-xen-devel | Aug 9, 2024 | Apr 11, 2019 |
| Ubuntu | ubuntu-upgrade-linux | Nov 19, 2024 | Apr 11, 2019 |
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