CVE-2026-52989 (GCVE-0-2026-52989)
Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-08-24 12:07
VLAI
EPSS
VEX
Title
nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
Summary
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.
Severity
9.8 (Critical)
7.1 (High)
CWE
- CWE-390 - Detection of Error Condition Without Action
Assigner
References
9 references
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1385be357e8acd09b36e026567f3a9d5c61139de , < 3df42a854686fa06484e37ac1a3931c8e3e3453c
(git)
Affected: dca1a6ba0da9f472ef040525fab10fd9956db59f , < d7c8f95f599b3b38a717d2e771c3f8c174f657c3 (git) Affected: 19672ae68d52ff75347ebe2420dde1b07adca09f , < f9204a2b78dd18374d3bcf9bf93d9021ce22de1b (git) Affected: ab200d71553bdcf4de554a5985b05b2dd606bc57 , < c2a11441538bdbbc5aa003f190995eba93a89b88 (git) Affected: 52a0a98549344ca20ad81a4176d68d28e3c05a5c , < 046fa5c72d15cd8e2d592e275697ea399d8f76b0 (git) Affected: 52a0a98549344ca20ad81a4176d68d28e3c05a5c , < ea8e356acb165cb1fd75537a52e1f66e5e76c538 (git) Affected: 043b4307a99f902697349128fde93b2ddde4686c (git) Affected: 42afe8ed8ad2de9c19457156244ef3e1eca94b5d (git) Affected: 6.1.163 , < 6.1.175 (semver) Affected: 6.6.124 , < 6.6.141 (semver) Affected: 6.12.70 , < 6.12.91 (semver) Affected: 6.18.10 , < 6.18.33 (semver) Affected: 5.10.250 , < 5.11 (semver) Affected: 5.15.200 , < 5.16 (semver) |
guessed | |
| Linux | Linux |
Affected:
6.19
Unaffected: 0 , < 6.19 (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed | |
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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