RDMA/rtrs-clt: Fix CQ pool leak when connect is interrupted
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(). 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.
CVE-2026-98352
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-2026-98352
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": "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",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/ulp/rtrs/rtrs-clt.c",
"drivers/infiniband/ulp/rtrs/rtrs-clt.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98352
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38431 · Revision 1
- Added to Heist Feed
- Publisher date