In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers Currently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds PDU length or offset, it triggers nvmet_tcp_fatal_error(cmd->queue) and returns early. However, because the function returns void, the callers are entirely unaware that a fatal error has occurred and that the cmd->recv_msg.msg_iter was left uninitialized. Callers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly overwrite the queue state with queue->rcv_state = NVMET_TCP_RECV_DATA Consequently, the socket receiving loop may attempt to read incoming network data into the uninitialized iterator. Fix this by shifting the error handling responsibility to the callers.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

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Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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References
Link Providers
https://git.kernel.org/stable/c/046fa5c72d15cd8e2d592e275697ea399d8f76b0 cve-icon
https://git.kernel.org/stable/c/3df42a854686fa06484e37ac1a3931c8e3e3453c cve-icon
https://git.kernel.org/stable/c/c2a11441538bdbbc5aa003f190995eba93a89b88 cve-icon
https://git.kernel.org/stable/c/d7c8f95f599b3b38a717d2e771c3f8c174f657c3 cve-icon
https://git.kernel.org/stable/c/ea8e356acb165cb1fd75537a52e1f66e5e76c538 cve-icon
https://git.kernel.org/stable/c/f9204a2b78dd18374d3bcf9bf93d9021ce22de1b cve-icon
History

Wed, 24 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-665
CWE-682

Wed, 24 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers Currently, when nvmet_tcp_build_pdu_iovec() detects an out-of-bounds PDU length or offset, it triggers nvmet_tcp_fatal_error(cmd->queue) and returns early. However, because the function returns void, the callers are entirely unaware that a fatal error has occurred and that the cmd->recv_msg.msg_iter was left uninitialized. Callers such as nvmet_tcp_handle_h2c_data_pdu() proceed to blindly overwrite the queue state with queue->rcv_state = NVMET_TCP_RECV_DATA Consequently, the socket receiving loop may attempt to read incoming network data into the uninitialized iterator. Fix this by shifting the error handling responsibility to the callers.
Title nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-24T16:29:03.398Z

Reserved: 2026-06-09T07:44:35.376Z

Link: CVE-2026-52989

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-24T18:45:05Z