net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks() rds_tcp_reset_callbacks() quiesces the transmit path by setting the path state to RDS_CONN_RESETTING and then waiting for RDS_IN_XMIT to be sampled clear before swapping the underlying socket and calling rds_send_path_reset(). Sampling the bit clear is not the same as owning it: rds_send_xmit() can re-acquire RDS_IN_XMIT right after the wait_event() returns. Its state recheck after taking the lock is a store-buffering pattern (the resetter writes the state and reads the bit, the sender writes the bit and reads the state) and acquire_in_xmit() is only an acquire operation, so on weakly ordered architectures both sides can miss each other's write and the transmit path then runs concurrently with rds_send_path_reset() rewriting cp_xmit_* state - which is exactly what the comment above rds_send_path_reset() tells its callers to prevent. Take the lock instead, hold it across the socket swap and rds_send_path_reset(), and release it with a wake-up at the end. The lock-ordering constraint documented above the wait still holds: the lock is acquired before lock_sock(), so a sender inside tcp_sendmsg() can never be waited on while we hold the socket lock. Two details of the old code go away with the same change: - t_sock is now read only after the lock is acquired. The old code cached it before waiting; the teardown in rds_conn_shutdown() releases that socket an
CVE-2026-98070
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-2026-98070
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": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "670af4e4a4de5e6bb5daee3838485571a0caa5fa",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "830a2e21b200c6b6fdccc63dd3f23932bf7a894b",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "a05790cb4ff03f797d76906990b148d83f63e7a3",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "d184e6dd4b8f3c20c018595fd09795a66b46c8ef",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "d625112564c3e980e02504270222b49b82690cee",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "8e4c3b7844c906c7097b4cfedd9dd1f48c9a6a92",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "062d9e008c67289e8e1b221ecdd8f9d60566d012",
"versionType": "git"
},
{
"status": "affected",
"version": "335b48d980f631fbc5b233cbb3625ac0c86d67cb",
"lessThan": "02c5f9dc2efd823e061954d564ce00bacd1bebeb",
"versionType": "git"
}
],
"programFiles": [
"net/rds/tcp.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.7",
"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": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/rds/tcp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98070
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38180 · Revision 1
- Added to Heist Feed
- Publisher date