UnratedFix available
batman-adv: dat: avoid unaligned fault in IP extraction
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: avoid unaligned fault in IP extraction Independent of the alignment of the ARP packet in the SKB, either the batadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access (on HW without native unaligned read support). Use get_unaligned() to handle this properly on all architectures.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.270, 5.15.221, 6.1.188, 6.12.110, 6.18.51, 6.6.157, 7.2.5
- CVEs
- CVE-2026-89949
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 10:24 UTC · Revision 1
Source evidence
batman-adv: dat: avoid unaligned fault in IP extraction
core-osv · Original sourcePublished 16 Sept 2026, 10:32 UTC
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: avoid unaligned fault in IP extraction Independent of the alignment of the ARP packet in the SKB, either the batadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access (on HW without native unaligned read support). Use get_unaligned() to handle this properly on all architectures.
osv:CVE-2026-89949
Kernel
Fixed versions: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5
Complete source record
{
"id": "4e11c9479aee64d40d46c29b740c6f7cc7014ec42767820865365253246ed100",
"url": "https://osv.dev/vulnerability/CVE-2026-89949",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "batman-adv: dat: avoid unaligned fault in IP extraction",
"summary": "In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: avoid unaligned fault in IP extraction Independent of the alignment of the ARP packet in the SKB, either the batadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access (on HW without native unaligned read support). Use get_unaligned() to handle this properly on all architectures.",
"evidence": "osv:CVE-2026-89949",
"products": [
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"name": {
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"evidence": "/affected/1/package/name"
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"prerequisites": [],
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"evidence": "/affected/1/ranges"
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{
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{
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{
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{
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{
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{
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"affected_versions": []
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"severity": "unknown",
"structured": {
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"aliases": [
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"affected": [
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"package": {
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"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-10-28T02:30:50.357238479Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/0c2df865338bbf92aa45b9253e5f9b8ef2d9992f",
"https://git.kernel.org/stable/c/15dbfb37f0e1a085d48deeb8f5238e9d28127dde",
"https://git.kernel.org/stable/c/1cfa7d5f70d54cb8c7e82df739430782d1996ee1",
"https://git.kernel.org/stable/c/91c99b4e152023c7d458a5dedd52d2b0d7df4ce3",
"https://git.kernel.org/stable/c/a170d4617e8cca05a1314de61728a262ef272782",
"https://git.kernel.org/stable/c/b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20",
"https://git.kernel.org/stable/c/c74a4acf41d19f21199dec2d6c813c90d31cd02c",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89949.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-89949",
"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/2026/89xxx/CVE-2026-89949.json"
}
},
"related_cves": [
{
"value": "CVE-2026-89949",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 518995,
"published_at": "2026-09-16T10:32:34.794+00:00"
}