{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: Fix missing release of 'active_io' for flush\n\nsubmit_flushes\n atomic_set(&mddev->flush_pending, 1);\n rdev_for_each_rcu(rdev, mddev)\n  atomic_inc(&mddev->flush_pending);\n  bi->bi_end_io = md_end_flush\n  submit_bio(bi);\n                        /* flush io is done first */\n                        md_end_flush\n                         if (atomic_dec_and_test(&mddev->flush_pending))\n                          percpu_ref_put(&mddev->active_io)\n                          -> active_io is not released\n\n if (atomic_dec_and_test(&mddev->flush_pending))\n  -> missing release of active_io\n\nFor consequence, mddev_suspend() will wait for 'active_io' to be zero\nforever.\n\nFix this problem by releasing 'active_io' in submit_flushes() if\n'flush_pending' is decreased to zero."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/md/md.c"
               ],
               "versions": [
                  {
                     "version": "f9f2d957a8ea",
                     "lessThan": "6b2ff10390b1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "530cec617f5a",
                     "lessThan": "02dad157ba11",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c4c2345214b6",
                     "lessThan": "11f81438927f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fa2bbff7b0b4",
                     "lessThan": "855678ed8534",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/md/md.c"
               ],
               "versions": [
                  {
                     "version": "6.1.75",
                     "lessThan": "6.1.80",
                     "status": "affected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.14",
                     "lessThan": "6.6.19",
                     "status": "affected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.2",
                     "lessThan": "6.7.7",
                     "status": "affected",
                     "versionType": "custom"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/6b2ff10390b19a2364af622b6666b690443f9f3f"
            },
            {
               "url": "https://git.kernel.org/stable/c/02dad157ba11064d073f5499dc33552b227d5d3a"
            },
            {
               "url": "https://git.kernel.org/stable/c/11f81438927f84edfaaeb5d5f10856c3a1c1fc82"
            },
            {
               "url": "https://git.kernel.org/stable/c/855678ed8534518e2b428bcbcec695de9ba248e8"
            }
         ],
         "title": "md: Fix missing release of 'active_io' for flush",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-27023",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}