CVE-2025-22057
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: decrease cached dst counters in dst_release Upstream fix ac888d58869b ("net: do not delay dst_entries_add() in dst_release()") moved decrementing the dst count from dst_destroy to dst_release to avoid accessing already freed data in case of netns dismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels are used, this fix is incomplete as the same issue will be seen for cached dsts: Unable to handle kernel paging request at virtual address ffff5aabf6b5c000 Call trace: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Fix this by invalidating the cache, and thus decrementing cached dst counters, in dst_release too.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-04-16 15:15:59.183000
Last modified
2026-10-30 13:17:56.273000
View original CVE JSON
{
"id": "CVE-2025-22057",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-04-16T15:15:59.183",
"lastModified": "2026-10-30T13:17:56.273",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: decrease cached dst counters in dst_release\n\nUpstream fix ac888d58869b (\"net: do not delay dst_entries_add() in\ndst_release()\") moved decrementing the dst count from dst_destroy to\ndst_release to avoid accessing already freed data in case of netns\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\n\n Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\n Call trace:\n percpu_counter_add_batch+0x3c/0x160 (P)\n dst_release+0xec/0x108\n dst_cache_destroy+0x68/0xd8\n dst_destroy+0x13c/0x168\n dst_destroy_rcu+0x1c/0xb0\n rcu_do_batch+0x18c/0x7d0\n rcu_core+0x174/0x378\n rcu_core_si+0x18/0x30\n\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: disminuir los contadores dst en caché en dst_release La corrección ascendente ac888d58869b (\"net: no retrasar dst_entries_add() en dst_release()\") se movió y disminuyó el recuento dst de dst_destroy a dst_release para evitar acceder a datos ya liberados en caso de desmantelamiento de netns. Sin embargo, en caso de que CONFIG_DST_CACHE esté habilitado y se usen túneles OvS+, esta corrección está incompleta ya que se verá el mismo problema para los dst en caché: No se puede manejar la solicitud de paginación del núcleo en la dirección virtual ffff5aabf6b5c000 Rastreo de llamadas: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Corrija esto invalidando el caché y, por lo tanto, disminuyendo los contadores dst en caché. dst_release también."
}
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{
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"programFiles": [
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
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"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
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{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
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"id": "CVE-2025-22057",
"options": [
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"role": "CISA Coordinator",
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"weaknesses": [
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"source": "[email protected]",
"type": "Primary",
"description": [
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"value": "NVD-CWE-noinfo"
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