CVE-2022-50676 (GCVE-0-2022-50676)
Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29
VLAI?
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 5d2ba255e93211e541373469dffbda7c99dfa0e5
(git)
Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 2425007c0967a7c04b0dee7cce05ecf0ca869ad1 (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < e3cb25d3ad08f5dbd53ce2b31720cad529944322 (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 360aa7219285fac63dab99706a16f2daf3222abe (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < 30bfa5aa7228eb1e67663d67e553627e572cc717 (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < c380c28ab9b15fc53565909c814f6dd3e7f77c4b (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < afe7053c390fe8ff27d0c2ceaece5625283044ba (git) Affected: ac3615e7f3cffe2a1a6b25172dfd09e138593d82 , < a91b750fd6629354460282bbf5146c01b05c4859 (git) |
|||||||
|
|||||||||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/rds/tcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5d2ba255e93211e541373469dffbda7c99dfa0e5",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "2425007c0967a7c04b0dee7cce05ecf0ca869ad1",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "e3cb25d3ad08f5dbd53ce2b31720cad529944322",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "360aa7219285fac63dab99706a16f2daf3222abe",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "30bfa5aa7228eb1e67663d67e553627e572cc717",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "c380c28ab9b15fc53565909c814f6dd3e7f77c4b",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "afe7053c390fe8ff27d0c2ceaece5625283044ba",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
},
{
"lessThan": "a91b750fd6629354460282bbf5146c01b05c4859",
"status": "affected",
"version": "ac3615e7f3cffe2a1a6b25172dfd09e138593d82",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/rds/tcp.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.331",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.296",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.262",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.220",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.75",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.17",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.331",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.14.296",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.262",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.220",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.150",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.75",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.19.17",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.3",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1",
"versionStartIncluding": "4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rds: don\u0027t hold sock lock when cancelling work from rds_tcp_reset_callbacks()\n\nsyzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for\ncommit ac3615e7f3cffe2a (\"RDS: TCP: Reduce code duplication in\nrds_tcp_reset_callbacks()\") added cancel_delayed_work_sync() into a section\nprotected by lock_sock() without realizing that rds_send_xmit() might call\nlock_sock().\n\nWe don\u0027t need to protect cancel_delayed_work_sync() using lock_sock(), for\neven if rds_{send,recv}_worker() re-queued this work while __flush_work()\n from cancel_delayed_work_sync() was waiting for this work to complete,\nretried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP\nbit."
}
],
"providerMetadata": {
"dateUpdated": "2025-12-09T01:29:29.166Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5d2ba255e93211e541373469dffbda7c99dfa0e5"
},
{
"url": "https://git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1"
},
{
"url": "https://git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322"
},
{
"url": "https://git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe"
},
{
"url": "https://git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c"
},
{
"url": "https://git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717"
},
{
"url": "https://git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b"
},
{
"url": "https://git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba"
},
{
"url": "https://git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859"
}
],
"title": "net: rds: don\u0027t hold sock lock when cancelling work from rds_tcp_reset_callbacks()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50676",
"datePublished": "2025-12-09T01:29:29.166Z",
"dateReserved": "2025-12-09T01:26:45.991Z",
"dateUpdated": "2025-12-09T01:29:29.166Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2022-50676\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T16:17:19.843\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: rds: don\u0027t hold sock lock when cancelling work from rds_tcp_reset_callbacks()\\n\\nsyzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for\\ncommit ac3615e7f3cffe2a (\\\"RDS: TCP: Reduce code duplication in\\nrds_tcp_reset_callbacks()\\\") added cancel_delayed_work_sync() into a section\\nprotected by lock_sock() without realizing that rds_send_xmit() might call\\nlock_sock().\\n\\nWe don\u0027t need to protect cancel_delayed_work_sync() using lock_sock(), for\\neven if rds_{send,recv}_worker() re-queued this work while __flush_work()\\n from cancel_delayed_work_sync() was waiting for this work to complete,\\nretried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP\\nbit.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5d2ba255e93211e541373469dffbda7c99dfa0e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…