vulnerability
Red Hat: CVE-2025-21927: kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:A/AC:L/Au:S/C:C/I:C/A:C) | Apr 1, 2025 | May 1, 2025 | Mar 27, 2026 |
Severity
8
CVSS
(AV:A/AC:L/Au:S/C:C/I:C/A:C)
Published
Apr 1, 2025
Added
May 1, 2025
Modified
Mar 27, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
nvme_tcp_recv_pdu() doesn't check the validity of the header length.
When header digests are enabled, a target might send a packet with an
invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst()
to access memory outside the allocated area and cause memory corruptions
by overwriting it with the calculated digest.
Fix this by rejecting packets with an unexpected header length.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
References
Rapid7 Labs
2026 Global Threat Landscape Report
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