CVE-2022-49918 (GCVE-0-2022-49918)
Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-11 19:09
VLAI
EPSS
VEX
Title
ipvs: fix WARNING in __ip_vs_cleanup_batch()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipvs: fix WARNING in __ip_vs_cleanup_batch()
During the initialization of ip_vs_conn_net_init(), if file ip_vs_conn
or ip_vs_conn_sync fails to be created, the initialization is successful
by default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't
be found during the remove.
The following is the stack information:
name 'ip_vs_conn_sync'
WARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712
remove_proc_entry+0x389/0x460
Modules linked in:
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460
Call Trace:
<TASK>
__ip_vs_cleanup_batch+0x7d/0x120
ops_exit_list+0x125/0x170
cleanup_net+0x4ea/0xb00
process_one_work+0x9bf/0x1710
worker_thread+0x665/0x1080
kthread+0x2e4/0x3a0
ret_from_fork+0x1f/0x30
</TASK>
Severity
5.5 (Medium)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
61b1ab4583e275af216c8454b9256de680499b19 , < f08ee2aa24c076f81d84e26e213d8c6f4efd9f50
(git)
Affected: 61b1ab4583e275af216c8454b9256de680499b19 , < 7effc4ce3d1434ce6ff286866585a6e905fdbfc1 (git) Affected: 61b1ab4583e275af216c8454b9256de680499b19 , < 931f56d59c854263b32075bfac56fdb3b1598d1b (git) Affected: 61b1ab4583e275af216c8454b9256de680499b19 , < 5ee2d6b726b0ce339e36569e5849692f4cf4595e (git) Affected: 61b1ab4583e275af216c8454b9256de680499b19 , < e724220b826e008764309d2a1f55a9434a4e1530 (git) Affected: 61b1ab4583e275af216c8454b9256de680499b19 , < 3d00c6a0da8ddcf75213e004765e4a42acc71d5d (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.39
Unaffected: 0 , < 2.6.39 (semver) Unaffected: 4.19.265 , ≤ 4.19.* (semver) Unaffected: 5.4.224 , ≤ 5.4.* (semver) Unaffected: 5.10.154 , ≤ 5.10.* (semver) Unaffected: 5.15.78 , ≤ 5.15.* (semver) Unaffected: 6.0.8 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipvs/ip_vs_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f08ee2aa24c076f81d84e26e213d8c6f4efd9f50",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "7effc4ce3d1434ce6ff286866585a6e905fdbfc1",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "931f56d59c854263b32075bfac56fdb3b1598d1b",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "5ee2d6b726b0ce339e36569e5849692f4cf4595e",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "e724220b826e008764309d2a1f55a9434a4e1530",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "3d00c6a0da8ddcf75213e004765e4a42acc71d5d",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipvs/ip_vs_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.39"
},
{
"lessThan": "2.6.39",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.224",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.154",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.78",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.8",
"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": "4.19.265",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.224",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.154",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.78",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.8",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1",
"versionStartIncluding": "2.6.39",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: fix WARNING in __ip_vs_cleanup_batch()\n\nDuring the initialization of ip_vs_conn_net_init(), if file ip_vs_conn\nor ip_vs_conn_sync fails to be created, the initialization is successful\nby default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn\u0027t\nbe found during the remove.\n\nThe following is the stack information:\nname \u0027ip_vs_conn_sync\u0027\nWARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712\nremove_proc_entry+0x389/0x460\nModules linked in:\nWorkqueue: netns cleanup_net\nRIP: 0010:remove_proc_entry+0x389/0x460\nCall Trace:\n\u003cTASK\u003e\n__ip_vs_cleanup_batch+0x7d/0x120\nops_exit_list+0x125/0x170\ncleanup_net+0x4ea/0xb00\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n\u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:09:13.860Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f08ee2aa24c076f81d84e26e213d8c6f4efd9f50"
},
{
"url": "https://git.kernel.org/stable/c/7effc4ce3d1434ce6ff286866585a6e905fdbfc1"
},
{
"url": "https://git.kernel.org/stable/c/931f56d59c854263b32075bfac56fdb3b1598d1b"
},
{
"url": "https://git.kernel.org/stable/c/5ee2d6b726b0ce339e36569e5849692f4cf4595e"
},
{
"url": "https://git.kernel.org/stable/c/e724220b826e008764309d2a1f55a9434a4e1530"
},
{
"url": "https://git.kernel.org/stable/c/3d00c6a0da8ddcf75213e004765e4a42acc71d5d"
}
],
"title": "ipvs: fix WARNING in __ip_vs_cleanup_batch()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-49918",
"datePublished": "2025-05-01T14:10:58.128Z",
"dateReserved": "2025-05-01T14:05:17.251Z",
"dateUpdated": "2026-05-11T19:09:13.860Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2022-49918",
"date": "2026-10-21",
"epss": "0.00203",
"percentile": "0.09719"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipvs/ip_vs_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f08ee2aa24c076f81d84e26e213d8c6f4efd9f50",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "7effc4ce3d1434ce6ff286866585a6e905fdbfc1",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "931f56d59c854263b32075bfac56fdb3b1598d1b",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "5ee2d6b726b0ce339e36569e5849692f4cf4595e",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "e724220b826e008764309d2a1f55a9434a4e1530",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
},
{
"lessThan": "3d00c6a0da8ddcf75213e004765e4a42acc71d5d",
"status": "affected",
"version": "61b1ab4583e275af216c8454b9256de680499b19",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/ipvs/ip_vs_conn.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.39"
},
{
"lessThan": "2.6.39",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.224",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.154",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.78",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "60E81263-C518-451B-B61D-A5F2C0FED7F9",
"versionEndExcluding": "4.19.265",
"versionStartIncluding": "2.6.39",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1D67A077-EB45-4ADE-94CD-F9A76F6C319C",
"versionEndExcluding": "5.4.224",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "475D097C-AB5A-4CF5-899F-413077854ABD",
"versionEndExcluding": "5.10.154",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "AB8B27B9-B41B-42D5-AE67-0A89A8A8EEB1",
"versionEndExcluding": "5.15.78",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EC9A754E-625D-42F3-87A7-960D643E2867",
"versionEndExcluding": "6.0.8",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*",
"matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*",
"matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*",
"matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: fix WARNING in __ip_vs_cleanup_batch()\n\nDuring the initialization of ip_vs_conn_net_init(), if file ip_vs_conn\nor ip_vs_conn_sync fails to be created, the initialization is successful\nby default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn\u0027t\nbe found during the remove.\n\nThe following is the stack information:\nname \u0027ip_vs_conn_sync\u0027\nWARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712\nremove_proc_entry+0x389/0x460\nModules linked in:\nWorkqueue: netns cleanup_net\nRIP: 0010:remove_proc_entry+0x389/0x460\nCall Trace:\n\u003cTASK\u003e\n__ip_vs_cleanup_batch+0x7d/0x120\nops_exit_list+0x125/0x170\ncleanup_net+0x4ea/0xb00\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n\u003c/TASK\u003e"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipvs: correcci\u00f3n de una ADVERTENCIA en __ip_vs_cleanup_batch(). Durante la inicializaci\u00f3n de ip_vs_conn_net_init(), si no se crea el archivo ip_vs_conn o ip_vs_conn_sync, la inicializaci\u00f3n se realiza correctamente por defecto. Por lo tanto, no se encuentra el archivo ip_vs_conn o ip_vs_conn_sync durante la eliminaci\u00f3n. La siguiente es la informaci\u00f3n de la pila: nombre \u0027ip_vs_conn_sync\u0027 ADVERTENCIA: CPU: 3 PID: 9 en fs/proc/generic.c:712 remove_proc_entry+0x389/0x460 M\u00f3dulos vinculados en: Cola de trabajo: netns cleanup_net RIP: 0010:remove_proc_entry+0x389/0x460 Seguimiento de llamadas: __ip_vs_cleanup_batch+0x7d/0x120 ops_exit_list+0x125/0x170 cleanup_net+0x4ea/0xb00 process_one_work+0x9bf/0x1710 worker_thread+0x665/0x1080 kthread+0x2e4/0x3a0 ret_from_fork+0x1f/0x30 "
}
],
"id": "CVE-2022-49918",
"lastModified": "2026-06-17T05:19:30.690",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-05-01T15:16:17.060",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3d00c6a0da8ddcf75213e004765e4a42acc71d5d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/5ee2d6b726b0ce339e36569e5849692f4cf4595e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/7effc4ce3d1434ce6ff286866585a6e905fdbfc1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/931f56d59c854263b32075bfac56fdb3b1598d1b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/e724220b826e008764309d2a1f55a9434a4e1530"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/f08ee2aa24c076f81d84e26e213d8c6f4efd9f50"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-29T21:32:38+00:00",
"cve": "CVE-2022-49918",
"id": "CVE-2022-49918",
"initial_release_date": "2022-01-01T00:00:00+00:00",
"product_status:known_affected": "198",
"product_status:known_not_affected": "76",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: ipvs: fix WARNING in __ip_vs_cleanup_batch()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49918.json",
"version": "3"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.