RDMA/siw: Clear association under lock if siw_qp_modify fails in siw_accept
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.
CVE-2026-98367
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98367
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "f11e09fe2fc3a11ccdf8f932b68181b0bb1d2078",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "e3f039082856adab7e195dea1af45d93dd6a3f1c",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "ad50d19f3d1ce052b3a146143581e930a1efb33e",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "030306bbb9273af80f14d7af20129661964cd9a7",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "df2584750314336edcbcc21fb388e04b260f35b7",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "9dcc0f4e488b70cff81e0e5717a498c929cf5de3",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "bfdc744bf20ae4c3ef2e470298de5237c5c9a13c",
"versionType": "git"
},
{
"status": "affected",
"version": "6c52fdc244b5ccc468006fd65a504d4ee33743c7",
"lessThan": "32cd87f54dd1070020e664ccb0312a9f0fea79b4",
"versionType": "git"
}
],
"programFiles": [
"drivers/infiniband/sw/siw/siw_cm.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/sw/siw/siw_cm.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98367
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38445 · Revision 1
- Added to Heist Feed
- Publisher date