{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()\n\nFix an 11-year old bug in ngene_command_config_free_buf() while\naddressing the following warnings caught with -Warray-bounds:\n\narch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\narch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\n\nThe problem is that the original code is trying to copy 6 bytes of\ndata into a one-byte size member _config_ of the wrong structue\nFW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a\nlegitimate compiler warning because memcpy() overruns the length\nof &com.cmd.ConfigureBuffers.config. It seems that the right\nstructure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains\n6 more members apart from the header _hdr_. Also, the name of\nthe function ngene_command_config_free_buf() suggests that the actual\nintention is to ConfigureFreeBuffers, instead of ConfigureBuffers\n(which takes place in the function ngene_command_config_buf(), above).\n\nFix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS\ninto new struct config, and use &com.cmd.ConfigureFreeBuffers.config as\nthe destination address, instead of &com.cmd.ConfigureBuffers.config,\nwhen calling memcpy().\n\nThis also helps with the ongoing efforts to globally enable\n-Warray-bounds and get us closer to being able to tighten the\nFORTIFY_SOURCE routines on memcpy()."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/media/pci/ngene/ngene-core.c",
                  "drivers/media/pci/ngene/ngene.h"
               ],
               "versions": [
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "4487b968e5ea",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "c6ddeb63dd54",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "e818f2ff6485",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "ec731c6ef564",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "e617fa62f6cf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "e991457afdcb",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "b9a178f189bb",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "dae52d009fc9",
                     "lessThan": "8d4abca95ecc",
                     "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/media/pci/ngene/ngene-core.c",
                  "drivers/media/pci/ngene/ngene.h"
               ],
               "versions": [
                  {
                     "version": "2.6.34",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.34",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.4.277",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.277",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.241",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.199",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.136",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.54",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13.6",
                     "lessThanOrEqual": "5.13.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2"
            },
            {
               "url": "https://git.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686"
            },
            {
               "url": "https://git.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90c"
            },
            {
               "url": "https://git.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00"
            },
            {
               "url": "https://git.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3"
            },
            {
               "url": "https://git.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092"
            },
            {
               "url": "https://git.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f5e3e070"
            },
            {
               "url": "https://git.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29f"
            }
         ],
         "title": "media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47288",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}