netfilter: nf_tables: do not allow SET_ID to refer to another table
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow SET_ID to refer to another table When doing lookups for sets on the same batch by using its ID, a set from a different table can be used. Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free. When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table. This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.19.256, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 5.4.211
- CVEs
- CVE-2022-50213
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 02:16 UTC · Revision 1
Source evidence
netfilter: nf_tables: do not allow SET_ID to refer to another table
core-osv · Original sourcePublished 18 Jun 2025, 11:03 UTC
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow SET_ID to refer to another table When doing lookups for sets on the same batch by using its ID, a set from a different table can be used. Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free. When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table. This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.
osv:CVE-2022-50213
Kernel
Fixed versions: 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2
Complete source record
{
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"url": "https://osv.dev/vulnerability/CVE-2022-50213",
"method": "structured",
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"title": "netfilter: nf_tables: do not allow SET_ID to refer to another table",
"summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow SET_ID to refer to another table When doing lookups for sets on the same batch by using its ID, a set from a different table can be used. Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free. When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table. This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.",
"evidence": "osv:CVE-2022-50213",
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"modified": "2026-10-28T02:30:49.068917868Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/fab2f61cc3b0e441b1749f017cfee75f9bbaded7",
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"https://nvd.nist.gov/vuln/detail/CVE-2022-50213",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50213.json"
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},
"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
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"source_id": "core-osv",
"document_id": 517291,
"published_at": "2025-06-18T11:03:50.958+00:00"
}