net/rds: acquire the fastpath locks in rds_conn_shutdown()
In the Linux kernel, the following vulnerability has been resolved: net/rds: acquire the fastpath locks in rds_conn_shutdown() rds_conn_shutdown() quiesces the transmit and receive-refill paths by waiting for RDS_IN_XMIT and RDS_RECV_REFILL to be sampled clear, and then runs the transport shutdown and rds_conn_path_reset(). Sampling the bits clear is not the same as owning them: the moment after the wait_event() returns, rds_send_xmit() can re-acquire RDS_IN_XMIT (or rds_ib_recv_refill() can re-acquire RDS_RECV_REFILL) and run concurrently with the teardown. The sender does recheck the connection state after taking the lock, but that recheck is a classic store-buffering pattern: teardown writes the state and reads the bit while the sender writes the bit and reads the state. 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 while the transport zeroes its rings (e.g. rds_ib_ring_init()) and rds_send_path_reset() rewrites the transmit state under it. Oracle UEK fixed the same class of crashes - a 14-year tail of BUG_ON()s in rds_ib_sub_signaled(), unexpected op-codes and NULL dereferences in rds_ib_send_cqe_handler() during failover testing - by making the teardown path *acquire* the fastpath bit locks instead of testing them ("rds: Make sure transmit path and connection tear-down does not run concurrently"). Ownership of a single word is decided by RMW atomicity, so no cross
CVE-2026-98069
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-2026-98069
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": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "7f4f21e4439df30d9aca9fb3bac38191a2f34729",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "1f900f585cbb0fbe6aa00c31c9f5bb63ee614456",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "32e21bcf4b5b11454bf57c4bb3bf019b71512ace",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "2e46248e375a516301884719f08b6015c79a6456",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "7febb113795d5de5b690b208f4b0e64a5fad1201",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "900e96c9749a06833801f60c393aa1d405ea226c",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "1fe627e5db5c3f53a9f9f9c8a66671755d306955",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b1c7e89e699f588807a914ec6e6396c851a72",
"lessThan": "813f3582ac7ae9f60f917937d54660e0952d5f2d",
"versionType": "git"
}
],
"programFiles": [
"net/rds/connection.c",
"net/rds/ib_recv.c",
"net/rds/send.c",
"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": "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": "6.12.111",
"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/connection.c",
"net/rds/ib_recv.c",
"net/rds/send.c",
"net/rds/tcp.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98069
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38179 · Revision 1
- Added to Heist Feed
- Publisher date