svcrdma: Clear sc_cm_id when ADDR_CHANGE replacement fails
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Clear sc_cm_id when ADDR_CHANGE replacement fails When svc_rdma_listen_handler() handles RDMA_CM_EVENT_ADDR_CHANGE, it creates a replacement listener cm_id and returns 1, telling the CM core to destroy the old one. If the replacement allocation fails, sc_cm_id still points at the old cm_id that the CM core is about to destroy. Any subsequent dereference of sc_cm_id -- such as svc_rdma_detach()'s rdma_disconnect() call -- is a use-after-free. NULL sc_cm_id on the failure path and guard svc_rdma_detach()'s rdma_disconnect() call against NULL so that the listener can be torn down safely when the server shuts down.
CVE-2026-89534
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-2026-89534
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": "d1b586e75ec619dde1af47e21a41a6b1b51874c2",
"lessThan": "2a68aeb2de8ad0fef9c50e73a50622a35c6af1a8",
"versionType": "git"
},
{
"status": "affected",
"version": "d1b586e75ec619dde1af47e21a41a6b1b51874c2",
"lessThan": "65f0f82f20334e76acaf29087a59af7b3b9699ed",
"versionType": "git"
},
{
"status": "affected",
"version": "d1b586e75ec619dde1af47e21a41a6b1b51874c2",
"lessThan": "673e358ab7c11f8cec223c6a36a793056a67facd",
"versionType": "git"
},
{
"status": "affected",
"version": "d1b586e75ec619dde1af47e21a41a6b1b51874c2",
"lessThan": "01500306e1d50de7ca7a2cdcdfa28ac0523eb747",
"versionType": "git"
},
{
"status": "affected",
"version": "5cd069ad1cf7fb46af31f0dbe2850868335f5272",
"versionType": "git"
},
{
"status": "affected",
"version": "6.6.160",
"lessThan": "6.7",
"versionType": "semver"
}
],
"programFiles": [
"net/sunrpc/xprtrdma/svc_rdma_transport.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/sunrpc/xprtrdma/svc_rdma_transport.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89534
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46673 · Revision 1
- Added to Heist Feed
- Publisher date