{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma: fix call order in dmam_free_coherent\n\ndmam_free_coherent() frees a DMA allocation, which makes the\nfreed vaddr available for reuse, then calls devres_destroy()\nto remove and free the data structure used to track the DMA\nallocation. Between the two calls, it is possible for a\nconcurrent task to make an allocation with the same vaddr\nand add it to the devres list.\n\nIf this happens, there will be two entries in the devres list\nwith the same vaddr and devres_destroy() can free the wrong\nentry, triggering the WARN_ON() in dmam_match.\n\nFix by destroying the devres entry before freeing the DMA\nallocation.\n\n  kokonut //net/encryption\n    http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/dma/mapping.c"
               ],
               "versions": [
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "fe2d246080f0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "2f7bbdc744f2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "257193083e8f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "87b34c8c94e2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "f993a4baf6b6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "1fe97f68fce1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "22094f5f52e7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "9ac7849e35f7",
                     "lessThan": "28e8b7406d3a",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "kernel/dma/mapping.c"
               ],
               "versions": [
                  {
                     "version": "2.6.21",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.21",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.320",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.282",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.224",
                     "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/fe2d246080f035e0af5793cb79067ba125e4fb63"
            },
            {
               "url": "https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9"
            },
            {
               "url": "https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7"
            },
            {
               "url": "https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954"
            },
            {
               "url": "https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb"
            },
            {
               "url": "https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130"
            },
            {
               "url": "https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e"
            },
            {
               "url": "https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20"
            }
         ],
         "title": "dma: fix call order in dmam_free_coherent",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-43856",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}