rds: ib: use rds_conn_drop() on protocol version mismatch
In the Linux kernel, the following vulnerability has been resolved: rds: ib: use rds_conn_drop() on protocol version mismatch rds_ib_cm_connect_complete() runs from the RDMA-CM event handler with conn->c_cm_lock held. When the peer negotiates a protocol version older than RDS_PROTOCOL_COMPAT_VERSION, the handler calls rds_conn_destroy(), which is only safe in the rmmod path: it synchronously tears the connection down and flush_work()es the shutdown work cp_down_w. That shutdown work (rds_conn_shutdown()) needs cp_cm_lock, which is the very lock the event handler still holds, so the flush never completes: the two workers wait on each other and the RDS connection workqueues stall for good. All other RDMA-CM failure paths (REJECTED, CONNECT_ERROR, DISCONNECTED) use rds_conn_drop(), which marks the connection RDS_CONN_ERROR and schedules the shutdown work asynchronously. Use it here as well.
CVE-2026-98257
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-2026-98257
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": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "424019be3f637da76b74f44a40034669acbb166f",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "14fb90067d13f4494cff0f03243fae3cf2911cbc",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "344c72a0bc2703a6de4918ed935850e07dae3af2",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "b5c9f2951d330d4a198a64d6e60f79b4bd6ef078",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "d392b16acd0908f077289aad8bba066ff16de336",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "65ca0a5037152a5a80b8fe6aac80eb80458be573",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "7d8c22cb2cb1efb5e830a4545c76abf7b35cc2e8",
"versionType": "git"
},
{
"status": "affected",
"version": "f147dd9ecabf23fd63d2562ffe64252a0453ecde",
"lessThan": "f97d8c7bab7843631206a114986c9059da03efeb",
"versionType": "git"
}
],
"programFiles": [
"net/rds/ib_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": "2.6.37"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.37",
"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": [
"net/rds/ib_cm.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98257
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38336 · Revision 1
- Added to Heist Feed
- Publisher date