{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "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]"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/mmc/core/sdio_bus.c",
                  "drivers/mmc/core/sdio_cis.c"
               ],
               "versions": [
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "92ff03c2563c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "5c7858adada3",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "761db46b29b4",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "30716d9f0fa1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "1e06cf04239e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "f855d31bb38d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "3d10a1ba0d37",
                     "lessThan": "605d9fb9556f",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/mmc/core/sdio_bus.c",
                  "drivers/mmc/core/sdio_cis.c"
               ],
               "versions": [
                  {
                     "version": "2.6.33",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.33",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.306",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.273",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.232",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.169",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.95",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.13",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.2",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58"
            },
            {
               "url": "https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a"
            },
            {
               "url": "https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e"
            },
            {
               "url": "https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931"
            },
            {
               "url": "https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd"
            },
            {
               "url": "https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72"
            },
            {
               "url": "https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded"
            }
         ],
         "title": "mmc: sdio: fix possible resource leaks in some error paths",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52730",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}