{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: initialize integrity buffer to zero before writing it to media\n\nMetadata added by bio_integrity_prep is using plain kmalloc, which leads\nto random kernel memory being written media.  For PI metadata this is\nlimited to the app tag that isn't used by kernel generated metadata,\nbut for non-PI metadata the entire buffer leaks kernel memory.\n\nFix this by adding the __GFP_ZERO flag to allocations for writes."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "block/bio-integrity.c"
               ],
               "versions": [
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "9f4af4cf08f9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "129f95948a96",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "3fd11fe4f207",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "cf6b45ea7a8d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "d418313bd8f5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "23a19655fb56",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "ebc0e91ba76d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "7ba1ba12eeef",
                     "lessThan": "899ee2c3829c",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "block/bio-integrity.c"
               ],
               "versions": [
                  {
                     "version": "2.6.27",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.27",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.322",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.284",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.226",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.165",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.103",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.44",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.3",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/9f4af4cf08f9a0329ade3d938f55d2220c40d0a6"
            },
            {
               "url": "https://git.kernel.org/stable/c/129f95948a96105c1fad8e612c9097763e88ac5f"
            },
            {
               "url": "https://git.kernel.org/stable/c/3fd11fe4f20756b4c0847f755a64cd96f8c6a005"
            },
            {
               "url": "https://git.kernel.org/stable/c/cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2"
            },
            {
               "url": "https://git.kernel.org/stable/c/d418313bd8f55c079a7da12651951b489a638ac1"
            },
            {
               "url": "https://git.kernel.org/stable/c/23a19655fb56f241e592041156dfb1c6d04da644"
            },
            {
               "url": "https://git.kernel.org/stable/c/ebc0e91ba76dc6544fff9f5b66408b1982806a00"
            },
            {
               "url": "https://git.kernel.org/stable/c/899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f"
            }
         ],
         "title": "block: initialize integrity buffer to zero before writing it to media",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-43854",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}