CVE-2025-39853
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-19 16:15:44.213000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
{
"id": "CVE-2025-39853",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-19T16:15:44.213",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix potential invalid access when MAC list is empty\n\nlist_first_entry() never returns NULL - if the list is empty, it still\nreturns a pointer to an invalid object, leading to potential invalid\nmemory access when dereferenced.\n\nFix this by using list_first_entry_or_null instead of list_first_entry."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni40e: Corrige el posible acceso inválido cuando la lista MAC está vacía\n\nlist_first_entry() nunca devuelve NULL; si la lista está vacía, aún devuelve un puntero a un objeto inválido, lo que lleva a un posible acceso inválido a la memoria cuando se desreferencia.\n\nSoluciona esto usando list_first_entry_or_null en lugar de list_first_entry."
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