FKIE_CVE-2024-35958

Vulnerability from fkie_nvd - Published: 2024-05-20 10:15 - Updated: 2025-12-17 03:37
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cdePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cdePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlThird Party Advisory, Mailing List
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
debian debian_linux 10.0
To clipboard 

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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ena: Fix incorrect descriptor free behavior\n\nENA has two types of TX queues:\n- queues which only process TX packets arriving from the network stack\n- queues which only process TX packets forwarded to it by XDP_REDIRECT\n  or XDP_TX instructions\n\nThe ena_free_tx_bufs() cycles through all descriptors in a TX queue\nand unmaps + frees every descriptor that hasn\u0027t been acknowledged yet\nby the device (uncompleted TX transactions).\nThe function assumes that the processed TX queue is necessarily from\nthe first category listed above and ends up using napi_consume_skb()\nfor descriptors belonging to an XDP specific queue.\n\nThis patch solves a bug in which, in case of a VF reset, the\ndescriptors aren\u0027t freed correctly, leading to crashes."
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      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ena: soluciona el comportamiento incorrecto sin descriptor. ENA tiene dos tipos de colas TX: - colas que solo procesan paquetes TX que llegan desde la pila de red - colas que solo procesan paquetes TX reenviados a mediante instrucciones XDP_REDIRECT o XDP_TX. Ena_free_tx_bufs() recorre todos los descriptores en una cola de TX y desasigna + libera todos los descriptores que a\u00fan no han sido reconocidos por el dispositivo (transacciones de TX incompletas). La funci\u00f3n supone que la cola TX procesada es necesariamente de la primera categor\u00eda enumerada anteriormente y termina usando napi_consume_skb() para los descriptores que pertenecen a una cola XDP espec\u00edfica. Este parche resuelve un error por el cual, en caso de restablecer VF, los descriptores no se liberan correctamente, lo que provoca fallos."
    }
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  "id": "CVE-2024-35958",
  "lastModified": "2025-12-17T03:37:36.533",
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          "confidentialityImpact": "NONE",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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