UnratedFix available
i40e: Fix potential invalid access when MAC list is empty
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.243, 5.15.192, 5.4.299, 6.1.151, 6.12.46, 6.16.6, 6.6.105
- CVEs
- CVE-2025-39853
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:23 UTC · Revision 1
Source evidence
i40e: Fix potential invalid access when MAC list is empty
core-osv · Original sourcePublished 19 Sept 2025, 15:26 UTC
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
osv:CVE-2025-39853
Kernel
Fixed versions: 5.4.299, 5.10.243, 5.15.192, 6.1.151, 6.6.105, 6.12.46, 6.16.6
Complete source record
{
"id": "4ac3e79446407465ed2e65ffd570b8b24620b1dbaef6c1eeb1497bb9059def8e",
"url": "https://osv.dev/vulnerability/CVE-2025-39853",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "i40e: Fix potential invalid access when MAC list is empty",
"summary": "In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.",
"evidence": "osv:CVE-2025-39853",
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{
"value": "5.10.243",
"evidence": "/affected/1/ranges"
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{
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{
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{
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"severity": "unknown",
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"aliases": [
"CVE-2025-39853"
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"affected": [
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"type": "GIT",
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{
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"package": {
"name": "Kernel",
"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-10-28T02:30:23.344317297Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-032379.html",
"https://cert-portal.siemens.com/productcert/html/ssa-089022.html",
"https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd",
"https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d",
"https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf",
"https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b",
"https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8",
"https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9",
"https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7",
"https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39853.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-39853",
"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/2025/39xxx/CVE-2025-39853.json"
}
},
"related_cves": [
{
"value": "CVE-2025-39853",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 489772,
"published_at": "2025-09-19T15:26:25.101+00:00"
}