netfilter: flowtable: validate vlan header
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.166, 6.1.107, 6.10.7, 6.6.48
- CVEs
- CVE-2024-44983
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:53 UTC · Revision 1
Source evidence
netfilter: flowtable: validate vlan header
core-osv · Original sourcePublished 4 Sept 2024, 19:54 UTC
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]
osv:CVE-2024-44983
Kernel
Fixed versions: 5.15.166, 6.1.107, 6.6.48, 6.10.7
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2024-44983",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "netfilter: flowtable: validate vlan header",
"summary": "In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: validate vlan header Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline]",
"evidence": "osv:CVE-2024-44983",
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"modified": "2026-10-28T02:30:52.777784127Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/0279c35d242d037abeb73d60d06a6d1bb7f672d9",
"https://git.kernel.org/stable/c/043a18bb6cf16adaa2f8642acfde6e8956a9caaa",
"https://git.kernel.org/stable/c/6ea14ccb60c8ab829349979b22b58a941ec4a3ee",
"https://git.kernel.org/stable/c/c05155cc455785916164aa5e1b4605a2ae946537",
"https://git.kernel.org/stable/c/d9384ae7aec46036d248d1c2c2757e471ab486c3",
"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44983.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-44983",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"provider_metadata": {
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
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"source_id": "core-osv",
"document_id": 521531,
"published_at": "2024-09-04T19:54:32.83+00:00"
}