nvd-json-data-feeds/CVE-2023/CVE-2023-527xx/CVE-2023-52730.json

{
  "id": "CVE-2023-52730",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-21T16:15:13.157",
  "lastModified": "2024-05-21T16:53:56.550",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdio: fix possible resource leaks in some error paths\n\nIf sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can\nnot release the resources, because the sdio function is not presented\nin these two cases, it won't call of_node_put() or put_device().\n\nTo fix these leaks, make sdio_func_present() only control whether\ndevice_del() needs to be called or not, then always call of_node_put()\nand put_device().\n\nIn error case in sdio_init_func(), the reference of 'card->dev' is\nnot get, to avoid redundant put in sdio_free_func_cis(), move the\nget_device() to sdio_alloc_func() and put_device() to sdio_release_func(),\nit can keep the get/put function be balanced.\n\nWithout this patch, while doing fault inject test, it can get the\nfollowing leak reports, after this fix, the leak is gone.\n\nunreferenced object 0xffff888112514000 (size 2048):\n  comm \"kworker/3:2\", pid 65, jiffies 4294741614 (age 124.774s)\n  hex dump (first 32 bytes):\n    00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 88 ff ff  ..o.....`X......\n    10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff  .@Q......@Q.....\n  backtrace:\n    [<000000009e5931da>] kmalloc_trace+0x21/0x110\n    [<000000002f839ccb>] mmc_alloc_card+0x38/0xb0 [mmc_core]\n    [<0000000004adcbf6>] mmc_sdio_init_card+0xde/0x170 [mmc_core]\n    [<000000007538fea0>] mmc_attach_sdio+0xcb/0x1b0 [mmc_core]\n    [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 [mmc_core]\n\nunreferenced object 0xffff888112511000 (size 2048):\n  comm \"kworker/3:2\", pid 65, jiffies 4294741623 (age 124.766s)\n  hex dump (first 32 bytes):\n    00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff  .@Q......X......\n    10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff  ..Q.......Q.....\n  backtrace:\n    [<000000009e5931da>] kmalloc_trace+0x21/0x110\n    [<00000000fcbe706c>] sdio_alloc_func+0x35/0x100 [mmc_core]\n    [<00000000c68f4b50>] mmc_attach_sdio.cold.18+0xb1/0x395 [mmc_core]\n    [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 [mmc_core]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: sdio: soluciona posibles fugas de recursos en algunas rutas de error. Si sdio_add_func() o sdio_init_func() falla, sdio_remove_func() no puede liberar los recursos, porque no se presenta la funci\u00f3n sdio en estos dos casos, no llamar\u00e1 a of_node_put() o put_device(). Para solucionar estas fugas, haga que sdio_func_present() solo controle si es necesario llamar a device_del() o no, luego llame siempre a of_node_put() y put_device(). En caso de error en sdio_init_func(), la referencia de 'card-&gt;dev' no se obtiene, para evitar la colocaci\u00f3n redundante en sdio_free_func_cis(), mueva get_device() a sdio_alloc_func() y put_device() a sdio_release_func(), puede mantenga equilibrada la funci\u00f3n get/put. Sin este parche, mientras realiza la prueba de inyecci\u00f3n de fallas, puede obtener los siguientes informes de fugas; despu\u00e9s de esta soluci\u00f3n, la fuga desaparece. objeto sin referencia 0xffff888112514000 (tama\u00f1o 2048): comunicaci\u00f3n \"kworker/3:2\", pid 65, jiffies 4294741614 (edad 124,774 s) volcado hexadecimal (primeros 32 bytes): 00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 8 y siguientes ff ..o.....`X...... 10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff .@Q......@Q..... retroceso : [&lt;000000009e5931da&gt;] kmalloc_trace+0x21/0x110 [&lt;000000002f839ccb&gt;] mmc_alloc_card+0x38/0xb0 [mmc_core] [&lt;0000000004adcbf6&gt;] mmc_sdio_init_card+0xde/0x170 [mmc_core] [&lt;000000007538fea0&gt;] mmc_attach_sdio+0xcb/0x1b0 [mmc_core] [&lt;00000000d4fdeba7&gt;] mmc_rescan+0x54a/0x640 [mmc_core] objeto sin referencia 0xffff888112511000 (tama\u00f1o 2048): comm \"kworker/3:2\", pid 65, santiam\u00e9n 4294741623 (edad 124,766 s) volcado hexadecimal (primero 32 bytes): 00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff .@Q......X...... 10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff ..Q. ......P..... rastreo inverso: [&lt;000000009e5931da&gt;] kmalloc_trace+0x21/0x110 [&lt;00000000fcbe706c&gt;] sdio_alloc_func+0x35/0x100 [mmc_core] [&lt;00000000c68f4b50&gt;] mmc_attach_sdio.cold. 18+0xb1/ 0x395 [mmc_core] [&lt;00000000d4fdeba7&gt;] mmc_rescan+0x54a/0x640 [mmc_core]"
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}