fkie_cve-2024-41005
Vulnerability from fkie_nvd
Published
2024-07-12 13:15
Modified
2025-09-25 19:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netpoll: Fix race condition in netpoll_owner_active
KCSAN detected a race condition in netpoll:
BUG: KCSAN: data-race in net_rx_action / netpoll_send_skb
write (marked) to 0xffff8881164168b0 of 4 bytes by interrupt on cpu 10:
net_rx_action (./include/linux/netpoll.h:90 net/core/dev.c:6712 net/core/dev.c:6822)
<snip>
read to 0xffff8881164168b0 of 4 bytes by task 1 on cpu 2:
netpoll_send_skb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393)
netpoll_send_udp (net/core/netpoll.c:?)
<snip>
value changed: 0x0000000a -> 0xffffffff
This happens because netpoll_owner_active() needs to check if the
current CPU is the owner of the lock, touching napi->poll_owner
non atomically. The ->poll_owner field contains the current CPU holding
the lock.
Use an atomic read to check if the poll owner is the current CPU.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"configurations": [
{
"nodes": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetpoll: Fix race condition in netpoll_owner_active\n\nKCSAN detected a race condition in netpoll:\n\n\tBUG: KCSAN: data-race in net_rx_action / netpoll_send_skb\n\twrite (marked) to 0xffff8881164168b0 of 4 bytes by interrupt on cpu 10:\n\tnet_rx_action (./include/linux/netpoll.h:90 net/core/dev.c:6712 net/core/dev.c:6822)\n\u003csnip\u003e\n\tread to 0xffff8881164168b0 of 4 bytes by task 1 on cpu 2:\n\tnetpoll_send_skb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393)\n\tnetpoll_send_udp (net/core/netpoll.c:?)\n\u003csnip\u003e\n\tvalue changed: 0x0000000a -\u003e 0xffffffff\n\nThis happens because netpoll_owner_active() needs to check if the\ncurrent CPU is the owner of the lock, touching napi-\u003epoll_owner\nnon atomically. The -\u003epoll_owner field contains the current CPU holding\nthe lock.\n\nUse an atomic read to check if the poll owner is the current CPU."
},
{
"lang": "es",
"value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: netpoll: Corrige condici\u00f3n de ejecuci\u00f3n en netpoll_owner_active KCSAN detect\u00f3 una condici\u00f3n de ejecuci\u00f3n en netpoll: ERROR: KCSAN: data-race en net_rx_action / netpoll_send_skb escribe (marcado) en 0xffff8881164168b0 de 4 bytes por interrupci\u00f3n en CPU 10: net_rx_action (./include/linux/netpoll.h:90 net/core/dev.c:6712 net/core/dev.c:6822) le\u00eddo en 0xffff8881164168b0 de 4 bytes por tarea 1 en la CPU 2 : netpoll_send_skb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393) netpoll_send_udp (net/core/netpoll.c:?) valor cambiado: 0x0000000a -\u0026gt; 0xffffffff Esto sucede porque netpoll_owner_active() necesita verificar si la CPU actual es la propietaria del bloqueo, tocando napi-\u0026gt;poll_owner de forma no at\u00f3mica. El campo -\u0026gt;poll_owner contiene la CPU actual que mantiene el bloqueo. Utilice una lectura at\u00f3mica para comprobar si el propietario de la encuesta es la CPU actual."
}
],
"id": "CVE-2024-41005",
"lastModified": "2025-09-25T19:38:37.303",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2024-07-12T13:15:21.310",
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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