net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock(). We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work() from cancel_delayed_work_sync() was waiting for this work to complete, retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.296, 4.19.262, 4.9.331, 5.10.150, 5.15.75, 5.19.17, 5.4.220, 6.0.3
- CVEs
- CVE-2022-50676
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 19:52 UTC · Revision 1
Source evidence
net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
core-osv · Original sourcePublished 9 Dec 2025, 01:29 UTC
In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock(). We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work() from cancel_delayed_work_sync() was waiting for this work to complete, retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.
osv:CVE-2022-50676
Kernel
Fixed versions: 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17, 6.0.3
Complete source record
{
"id": "3c1a9f5fc236d334d925e6092f8a06459ceaa1cab93aff8498862399343a5537",
"url": "https://osv.dev/vulnerability/CVE-2022-50676",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a (\"RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()\") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock(). We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work() from cancel_delayed_work_sync() was waiting for this work to complete, retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.",
"evidence": "osv:CVE-2022-50676",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.9.331",
"evidence": "/affected/1/ranges"
},
{
"value": "4.14.296",
"evidence": "/affected/1/ranges"
},
{
"value": "4.19.262",
"evidence": "/affected/1/ranges"
},
{
"value": "5.4.220",
"evidence": "/affected/1/ranges"
},
{
"value": "5.10.150",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.75",
"evidence": "/affected/1/ranges"
},
{
"value": "5.19.17",
"evidence": "/affected/1/ranges"
},
{
"value": "6.0.3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CVE-2022-50676",
"aliases": [
"CVE-2022-50676"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82"
},
{
"fixed": "5d2ba255e93211e541373469dffbda7c99dfa0e5"
},
{
"fixed": "2425007c0967a7c04b0dee7cce05ecf0ca869ad1"
},
{
"fixed": "e3cb25d3ad08f5dbd53ce2b31720cad529944322"
},
{
"fixed": "360aa7219285fac63dab99706a16f2daf3222abe"
},
{
"fixed": "da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c"
},
{
"fixed": "30bfa5aa7228eb1e67663d67e553627e572cc717"
},
{
"fixed": "c380c28ab9b15fc53565909c814f6dd3e7f77c4b"
},
{
"fixed": "afe7053c390fe8ff27d0c2ceaece5625283044ba"
},
{
"fixed": "a91b750fd6629354460282bbf5146c01b05c4859"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50676.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.8.0"
},
{
"fixed": "4.9.331"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.10.0"
},
{
"fixed": "4.14.296"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.15.0"
},
{
"fixed": "4.19.262"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.20.0"
},
{
"fixed": "5.4.220"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.10.150"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.75"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "5.19.17"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.20.0"
},
{
"fixed": "6.0.3"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50676.json"
}
}
],
"modified": "2026-10-28T02:30:38.891364561Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1",
"https://git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717",
"https://git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe",
"https://git.kernel.org/stable/c/5d2ba255e93211e541373469dffbda7c99dfa0e5",
"https://git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859",
"https://git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba",
"https://git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b",
"https://git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c",
"https://git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50676.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-50676",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50676.json"
}
},
"related_cves": [
{
"value": "CVE-2022-50676",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 506379,
"published_at": "2025-12-09T01:29:29.166+00:00"
}