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https://github.com/fkie-cad/nvd-json-data-feeds.git
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33 lines
2.4 KiB
JSON
33 lines
2.4 KiB
JSON
{
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"id": "CVE-2024-26858",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-04-17T11:15:08.840",
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"lastModified": "2024-04-17T12:48:07.510",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map\n\nJust simply reordering the functions mlx5e_ptp_metadata_map_put and\nmlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good\nenough since both the compiler and CPU are free to reorder these two\nfunctions. If reordering does occur, the issue that was supposedly fixed by\n7e3f3ba97e6c (\"net/mlx5e: Track xmit submission to PTP WQ after populating\nmetadata map\") will be seen. This will lead to NULL pointer dereferences in\nmlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the\ntracking list being populated before the metadata map."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: use una barrera de memoria para aplicar PTP WQ. El seguimiento de env\u00edo xmit ocurre despu\u00e9s de completar metadata_map. Simplemente reordenar las funciones mlx5e_ptp_metadata_map_put y mlx5e_ptpsq_track_metadata en el contexto mlx5e_txwqe_complete no es lo suficientemente bueno ya que ambas el compilador y la CPU son libres de reordenar estas dos funciones. Si se produce un reordenamiento, se ver\u00e1 el problema que supuestamente fue solucionado por 7e3f3ba97e6c (\"net/mlx5e: Seguimiento del env\u00edo de xmit a PTP WQ despu\u00e9s de completar el mapa de metadatos\"). Esto dar\u00e1 lugar a desreferencias de puntero NULL en mlx5e_ptpsq_mark_ts_cqes_undelivered en el contexto de sondeo NAPI debido a que la lista de seguimiento se completa antes del mapa de metadatos."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/936ef086161ab89a7f38f7a0761d6a3063c3277e",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/d1f71615dbb305f14f3b756cce015d70d8667549",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |