{
  "id": "CVE-2024-26834",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-04-17T10:15:09.617",
  "lastModified": "2024-04-17T12:48:07.510",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_flow_offload: release dst in case direct xmit path is used\n\nDirect xmit does not use it since it calls dev_queue_xmit() to send\npackets, hence it calls dst_release().\n\nkmemleak reports:\n\nunreferenced object 0xffff88814f440900 (size 184):\n  comm \"softirq\", pid 0, jiffies 4294951896\n  hex dump (first 32 bytes):\n    00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff  .`[.............\n    21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00  !.P.............\n  backtrace (crc cb2bf5d6):\n    [<000000003ee17107>] kmem_cache_alloc+0x286/0x340\n    [<0000000021a5de2c>] dst_alloc+0x43/0xb0\n    [<00000000f0671159>] rt_dst_alloc+0x2e/0x190\n    [<00000000fe5092c9>] __mkroute_output+0x244/0x980\n    [<000000005fb96fb0>] ip_route_output_flow+0xc0/0x160\n    [<0000000045367433>] nf_ip_route+0xf/0x30\n    [<0000000085da1d8e>] nf_route+0x2d/0x60\n    [<00000000d1ecd1cb>] nft_flow_route+0x171/0x6a0 [nft_flow_offload]\n    [<00000000d9b2fb60>] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload]\n    [<000000009f447dbb>] expr_call_ops_eval+0x53/0x330 [nf_tables]\n    [<00000000072e1be6>] nft_do_chain+0x17c/0x840 [nf_tables]\n    [<00000000d0551029>] nft_do_chain_inet+0xa1/0x210 [nf_tables]\n    [<0000000097c9d5c6>] nf_hook_slow+0x5b/0x160\n    [<0000000005eccab1>] ip_forward+0x8b6/0x9b0\n    [<00000000553a269b>] ip_rcv+0x221/0x230\n    [<00000000412872e5>] __netif_receive_skb_one_core+0xfe/0x110"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_flow_offload: libera dst en caso de que se use la ruta de xmit directa Direct xmit no la usa ya que llama a dev_queue_xmit() para enviar paquetes, por lo tanto llama a dst_release(). informes kmemleak: objeto sin referencia 0xffff88814f440900 (tama\u00f1o 184): comm \"softirq\", pid 0, jiffies 4294951896 volcado hexadecimal (primeros 32 bytes): 00 60 5b 04 81 88 ff ff 00 e6 e8 82 ff ff ff ff .`[.. ........... 21 0b 50 82 ff ff ff ff 00 00 00 00 00 00 00 00 !.P................. retroceso (crc cb2bf5d6): [ &lt;000000003ee17107&gt;] kmem_cache_alloc+0x286/0x340 [&lt;0000000021a5de2c&gt;] dst_alloc+0x43/0xb0 [&lt;00000000f0671159&gt;] rt_dst_alloc+0x2e/0x190 [&lt;00000000fe50 92c9&gt;] __mkroute_output+0x244/0x980 [&lt;000000005fb96fb0&gt;] ip_route_output_flow+0xc0/0x160 [ &lt;0000000045367433&gt;] nf_ip_route+0xf/0x30 [&lt;0000000085da1d8e&gt;] nf_route+0x2d/0x60 [&lt;00000000d1ecd1cb&gt;] nft_flow_route+0x171/0x6a0 [nft_flow_offload] 0000d9b2fb60&gt;] nft_flow_offload_eval+0x4e8/0x700 [nft_flow_offload] [&lt;000000009f447dbb&gt;] expr_call_ops_eval+0x53/0x330 [nf_tables] [&lt;00000000072e1be6&gt;] nft_do_chain+0x17c/0x840 [nf_tables] [&lt;00000000d0551029&gt;] nft_do_chain_inet+0xa1/0x210 [nf_tables] [ &lt;0000000097c9d5c6&gt;] nf_hook_slow+0x5b/0x160 [&lt;0000000005eccab1&gt;] ip_forward +0x8b6/0x9b0 [&lt;00000000553a269b&gt;] ip_rcv+0x221/0x230 [&lt;00000000412872e5&gt;] __netif_receive_skb_one_core+0xfe/0x110"
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/13b57b5cd591d5b22f9bbf047b2922967de411f3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2d17cf10179a7de6d8f0128168b84ad0b4a1863f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8762785f459be1cfe6fcf7285c123aad6a3703f0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9256ab9232e35a16af9c30fa4e522e6d1bd3605a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a6cafdb49a7bbf4a88367db209703eee6941e023",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}