In the Linux kernel, the following vulnerability has been resolved:

RDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept

We need to clear cep before release state_lock as siw_qp_llp_close and
siw_qp_modify->siw_qp_llp_close did.

Otherwise if siw_qp_modify() fails in siw_accept(), the QP's state_lock
is released before the error path cleanup. A concurrent ibv_modify_qp()
transitioning the QP to ERROR can race in this window:

siw_accept() ibv_modify_qp(ERROR)
---------------------- ----------------------
siw_qp_modify() fails
up_write(&qp->state_lock)
down_write(&qp->state_lock)
nextstate_from_idle():
if (qp->cep)
siw_cep_put(qp->cep) <- frees cep
qp->cep = NULL
goto error
cep->qp = NULL <- UAF

Clear qp->cep and drop the association reference taken by siw_cep_get(),
all under the write lock held from the initial down_write(&qp->state_lock).
Thread B therefore sees qp->cep == NULL, skips its own put, and cannot free
the cep before siw_accept() is done with it.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00172.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < e3f039082856adab7e195dea1af45d93dd6a3f1c
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < ad50d19f3d1ce052b3a146143581e930a1efb33e
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < 030306bbb9273af80f14d7af20129661964cd9a7
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < df2584750314336edcbcc21fb388e04b260f35b7
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < 9dcc0f4e488b70cff81e0e5717a498c929cf5de3
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < bfdc744bf20ae4c3ef2e470298de5237c5c9a13c
6c52fdc244b5ccc468006fd65a504d4ee33743c7 affected < 32cd87f54dd1070020e664ccb0312a9f0fea79b4
Linux Linux affected
Version Status Constraints
5.3 affected —
0 unaffected < 5.3
5.10.271 unaffected ≤ 5.10.*
5.15.222 unaffected ≤ 5.15.*
6.1.189 unaffected ≤ 6.1.*
6.6.158 unaffected ≤ 6.6.*
6.12.112 unaffected ≤ 6.12.*
6.18.54 unaffected ≤ 6.18.*
7.2.8 unaffected ≤ 7.2.*
7.3-rc4 unaffected ≤ *

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/030306bbb9273af80f14d7af20129661964cd9a7 cve-icon cve-icon
https://git.kernel.org/stable/c/32cd87f54dd1070020e664ccb0312a9f0fea79b4 cve-icon cve-icon
https://git.kernel.org/stable/c/9dcc0f4e488b70cff81e0e5717a498c929cf5de3 cve-icon cve-icon
https://git.kernel.org/stable/c/ad50d19f3d1ce052b3a146143581e930a1efb33e cve-icon cve-icon
https://git.kernel.org/stable/c/bfdc744bf20ae4c3ef2e470298de5237c5c9a13c cve-icon cve-icon
https://git.kernel.org/stable/c/df2584750314336edcbcc21fb388e04b260f35b7 cve-icon cve-icon
https://git.kernel.org/stable/c/e3f039082856adab7e195dea1af45d93dd6a3f1c cve-icon cve-icon
https://git.kernel.org/stable/c/f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078 cve-icon cve-icon
History

Tue, 06 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362
CWE-416

Tue, 06 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept We need to clear cep before release state_lock as siw_qp_llp_close and siw_qp_modify->siw_qp_llp_close did. Otherwise if siw_qp_modify() fails in siw_accept(), the QP's state_lock is released before the error path cleanup. A concurrent ibv_modify_qp() transitioning the QP to ERROR can race in this window: siw_accept() ibv_modify_qp(ERROR) ---------------------- ---------------------- siw_qp_modify() fails up_write(&qp->state_lock) down_write(&qp->state_lock) nextstate_from_idle(): if (qp->cep) siw_cep_put(qp->cep) <- frees cep qp->cep = NULL goto error cep->qp = NULL <- UAF Clear qp->cep and drop the association reference taken by siw_cep_get(), all under the write lock held from the initial down_write(&qp->state_lock). Thread B therefore sees qp->cep == NULL, skips its own put, and cannot free the cep before siw_accept() is done with it.
Title RDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-06T08:46:52.452Z

Reserved: 2026-09-25T10:25:14.344Z

Link: CVE-2026-98367

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-06T09:18:30.970

Modified: 2026-10-06T09:18:30.970

Link: CVE-2026-98367

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T14:00:20Z

Weaknesses