CVE-2026-98352
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted
The client borrows shared CQ credits in the ADDR_RESOLVED handler via ib_cq_pool_get(), before the peer is connected. create_cm() can return -ERESTARTSYS from wait_event_interruptible_timeout() without destroying the CM ID. The init_conns() and stop-and-destroy paths then call destroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards rdma_destroy_id().
CMA serializes the handler against rdma_destroy_id() with handler_mutex, but that does not order the GET against destroy_con_cq_qp().
Leer descripción completaMostrar menos
If ADDR_RESOLVED has already passed the DESTROYING check, it can take con_mutex, GET credits, and then lose the con to kfree. Device unregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup().
Set a per-connection flag under con_mutex before CQ/QP teardown so a racing ADDR_RESOLVED cannot borrow credits after teardown has begun.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
- https://git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda
- https://git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb
- https://git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878
- https://git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da
- https://git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11
- https://git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097
- https://git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98352",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "a82cca40139d9fcae8208901856bd5bb4051f097",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "74c4ed55e61f1b65ddbebc5b635d136461a1c3da",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "6f8020fe7465f49e234a576c04e415e9d08c7878",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "31024e158b45358370a0a14ed96589e6aa62d6cb",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "8f253d5893f991742464b9e7203c43fc08d0aa11",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "bf88ac4867050112a6c819c8d1a7209bf48ef427",
"versionType": "git"
},
{
"status": "affected",
"version": "3b89e92c2a95a39c38a3808f4528e502a39bd94d",
"lessThan": "2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda",
"versionType": "git"
}
],
"programFiles": [
"drivers/infiniband/ulp/rtrs/rtrs-clt.c",
"drivers/infiniband/ulp/rtrs/rtrs-clt.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.13",
"versionType": "semver"
},
{
"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-rc4",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/ulp/rtrs/rtrs-clt.c",
"drivers/infiniband/ulp/rtrs/rtrs-clt.h"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-06T09:18:28.587",
"references": [
{
"url": "https://git.kernel.org/stable/c/2ae16aaa78b5edc6e6d0904c84fd9cdfb762bcda",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/31024e158b45358370a0a14ed96589e6aa62d6cb",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6f8020fe7465f49e234a576c04e415e9d08c7878",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/74c4ed55e61f1b65ddbebc5b635d136461a1c3da",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8f253d5893f991742464b9e7203c43fc08d0aa11",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a82cca40139d9fcae8208901856bd5bb4051f097",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/bf88ac4867050112a6c819c8d1a7209bf48ef427",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted\n\nThe client borrows shared CQ credits in the ADDR_RESOLVED handler via\nib_cq_pool_get(), before the peer is connected. create_cm() can return\n-ERESTARTSYS from wait_event_interruptible_timeout() without destroying\nthe CM ID. The init_conns() and stop-and-destroy paths then call\ndestroy_con_cq_qp() while cq is still NULL (no PUT) and only afterwards\nrdma_destroy_id().\n\nCMA serializes the handler against rdma_destroy_id() with handler_mutex,\nbut that does not order the GET against destroy_con_cq_qp(). If\nADDR_RESOLVED has already passed the DESTROYING check, it can take\ncon_mutex, GET credits, and then lose the con to kfree. Device\nunregister later hits WARN_ON(cq->cqe_used) in ib_cq_pool_cleanup().\n\nSet a per-connection flag under con_mutex before CQ/QP teardown so a\nracing ADDR_RESOLVED cannot borrow credits after teardown has begun."
}
],
"lastModified": "2026-10-06T09:18:28.587",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}