fkie_cve-2024-46717
Vulnerability from fkie_nvd
Published
2024-09-18 07:15
Modified
2024-09-20 12:30
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: SHAMPO, Fix incorrect page release Under the following conditions: 1) No skb created yet 2) header_size == 0 (no SHAMPO header) 3) header_index + 1 % MLX5E_SHAMPO_WQ_HEADER_PER_PAGE == 0 (this is the last page fragment of a SHAMPO header page) a new skb is formed with a page that is NOT a SHAMPO header page (it is a regular data page). Further down in the same function (mlx5e_handle_rx_cqe_mpwrq_shampo()), a SHAMPO header page from header_index is released. This is wrong and it leads to SHAMPO header pages being released more than once.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03924d117625ecb10ee3c9b65930bcb2c37ae629
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/70bd03b89f20b9bbe51a7f73c4950565a17a45f7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ae9018e3f61ba5cc1f08a6e51d3c0bef0a79f3ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c909ab41df2b09cde919801c7a7b6bb2cc37ea22
Impacted products
Vendor Product Version


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{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: SHAMPO, Fix incorrect page release\n\nUnder the following conditions:\n1) No skb created yet\n2) header_size == 0 (no SHAMPO header)\n3) header_index + 1 % MLX5E_SHAMPO_WQ_HEADER_PER_PAGE == 0 (this is the\n   last page fragment of a SHAMPO header page)\n\na new skb is formed with a page that is NOT a SHAMPO header page (it\nis a regular data page). Further down in the same function\n(mlx5e_handle_rx_cqe_mpwrq_shampo()), a SHAMPO header page from\nheader_index is released. This is wrong and it leads to SHAMPO header\npages being released more than once.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: SHAMPO, Corregir liberación de página incorrecta Bajo las siguientes condiciones: 1) No se ha creado ningún skb todavía 2) header_size == 0 (no hay encabezado SHAMPO) 3) header_index + 1 % MLX5E_SHAMPO_WQ_HEADER_PER_PAGE == 0 (este es el último fragmento de página de una página de encabezado SHAMPO) se forma un nuevo skb con una página que NO es una página de encabezado SHAMPO (es una página de datos normal). Más abajo en la misma función (mlx5e_handle_rx_cqe_mpwrq_shampo()), se libera una página de encabezado SHAMPO de header_index. Esto es incorrecto y lleva a que las páginas de encabezado SHAMPO se liberen más de una vez.",
      },
   ],
   id: "CVE-2024-46717",
   lastModified: "2024-09-20T12:30:51.220",
   metrics: {},
   published: "2024-09-18T07:15:03.237",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/03924d117625ecb10ee3c9b65930bcb2c37ae629",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/70bd03b89f20b9bbe51a7f73c4950565a17a45f7",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/ae9018e3f61ba5cc1f08a6e51d3c0bef0a79f3ab",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/c909ab41df2b09cde919801c7a7b6bb2cc37ea22",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Awaiting Analysis",
}


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