{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nenetc: Fix illegal access when reading affinity_hint\n\nirq_set_affinity_hit() stores a reference to the cpumask_t\nparameter in the irq descriptor, and that reference can be\naccessed later from irq_affinity_hint_proc_show(). Since\nthe cpu_mask parameter passed to irq_set_affinity_hit() has\nonly temporary storage (it's on the stack memory), later\naccesses to it are illegal. Thus reads from the corresponding\nprocfs affinity_hint file can result in paging request oops.\n\nThe issue is fixed by the get_cpu_mask() helper, which provides\na permanent storage for the cpumask_t parameter."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ethernet/freescale/enetc/enetc.c"
               ],
               "versions": [
                  {
                     "version": "d4fd0404c1c9",
                     "lessThan": "4c4c3052911b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d4fd0404c1c9",
                     "lessThan": "6c3f1b741c6c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d4fd0404c1c9",
                     "lessThan": "6f329d9da2a5",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d4fd0404c1c9",
                     "lessThan": "7237a494decf",
                     "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/net/ethernet/freescale/enetc/enetc.c"
               ],
               "versions": [
                  {
                     "version": "5.1",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.1",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.150",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.70",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14.9",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/4c4c3052911b577920353a7646e4883d5da40c28"
            },
            {
               "url": "https://git.kernel.org/stable/c/6c3f1b741c6c2914ea120e3a5790d3e900152f7b"
            },
            {
               "url": "https://git.kernel.org/stable/c/6f329d9da2a5ae032fcde800a99b118124ed5270"
            },
            {
               "url": "https://git.kernel.org/stable/c/7237a494decfa17d0b9d0076e6cee3235719de90"
            }
         ],
         "title": "enetc: Fix illegal access when reading affinity_hint",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47368",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}