cve/published/2023/CVE-2023-52983.json

{
   "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, bfq: fix uaf for bfqq in bic_set_bfqq()\n\nAfter commit 64dc8c732f5c (\"block, bfq: fix possible uaf for 'bfqq->bic'\"),\nbic->bfqq will be accessed in bic_set_bfqq(), however, in some context\nbic->bfqq will be freed, and bic_set_bfqq() is called with the freed\nbic->bfqq.\n\nFix the problem by always freeing bfqq after bic_set_bfqq()."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "block/bfq-cgroup.c",
                  "block/bfq-iosched.c"
               ],
               "versions": [
                  {
                     "version": "5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a",
                     "lessThan": "7f77f3dab5066a7c9da73d72d1eee895ff84a8d5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "094f3d9314d67691cb21ba091c1b528f6e3c4893",
                     "lessThan": "511c922c5bf6c8a166bea826e702336bc2424140",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "761564d93c8265f65543acf0a576b32d66bfa26a",
                     "lessThan": "cb1876fc33af26d00efdd473311f1b664c77c44e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "64dc8c732f5c2b406cc752e6aaa1bd5471159cab",
                     "lessThan": "b600de2d7d3a16f9007fad1bdae82a3951a26af2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "b22fd72bfebda3956efc4431b60ddfc0a51e03e0",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "block/bfq-cgroup.c",
                  "block/bfq-iosched.c"
               ],
               "versions": [
                  {
                     "version": "5.15.86",
                     "lessThan": "5.15.93",
                     "status": "affected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.1.2",
                     "lessThan": "6.1.11",
                     "status": "affected",
                     "versionType": "semver"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.15.86",
                           "versionEndExcluding": "5.15.93"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.1.2",
                           "versionEndExcluding": "6.1.11"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.0.16"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/7f77f3dab5066a7c9da73d72d1eee895ff84a8d5"
            },
            {
               "url": "https://git.kernel.org/stable/c/511c922c5bf6c8a166bea826e702336bc2424140"
            },
            {
               "url": "https://git.kernel.org/stable/c/cb1876fc33af26d00efdd473311f1b664c77c44e"
            },
            {
               "url": "https://git.kernel.org/stable/c/b600de2d7d3a16f9007fad1bdae82a3951a26af2"
            }
         ],
         "title": "block, bfq: fix uaf for bfqq in bic_set_bfqq()",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52983",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}