cve/published/2021/CVE-2021-46920.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\ndmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback\n\nCurrent code blindly writes over the SWERR and the OVERFLOW bits. Write\nback the bits actually read instead so the driver avoids clobbering the\nOVERFLOW bit that comes after the register is read."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/dma/idxd/irq.c"
               ],
               "versions": [
                  {
                     "version": "bfe1d56091c1a404b3d4ce7e9809d745fc4453bb",
                     "lessThan": "a5ad12d5d69c63af289a37f05187a0c6fe93553d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bfe1d56091c1a404b3d4ce7e9809d745fc4453bb",
                     "lessThan": "02981a44a0e402089775416371bd2e0c935685f8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bfe1d56091c1a404b3d4ce7e9809d745fc4453bb",
                     "lessThan": "ea941ac294d75d0ace50797aebf0056f6f8f7a7f",
                     "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/dma/idxd/irq.c"
               ],
               "versions": [
                  {
                     "version": "5.6",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.6",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.10.32",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.11.16",
                     "lessThanOrEqual": "5.11.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.12",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.6",
                           "versionEndExcluding": "5.10.32"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.6",
                           "versionEndExcluding": "5.11.16"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.6",
                           "versionEndExcluding": "5.12"
                        }
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                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/a5ad12d5d69c63af289a37f05187a0c6fe93553d"
            },
            {
               "url": "https://git.kernel.org/stable/c/02981a44a0e402089775416371bd2e0c935685f8"
            },
            {
               "url": "https://git.kernel.org/stable/c/ea941ac294d75d0ace50797aebf0056f6f8f7a7f"
            }
         ],
         "title": "dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-46920",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}