{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix potential glock use-after-free on unmount\n\nWhen a DLM lockspace is released and there ares still locks in that\nlockspace, DLM will unlock those locks automatically.  Commit\nfb6791d100d1b started exploiting this behavior to speed up filesystem\nunmount: gfs2 would simply free glocks it didn't want to unlock and then\nrelease the lockspace.  This didn't take the bast callbacks for\nasynchronous lock contention notifications into account, which remain\nactive until until a lock is unlocked or its lockspace is released.\n\nTo prevent those callbacks from accessing deallocated objects, put the\nglocks that should not be unlocked on the sd_dead_glocks list, release\nthe lockspace, and only then free those glocks.\n\nAs an additional measure, ignore unexpected ast and bast callbacks if\nthe receiving glock is dead."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/gfs2/glock.c",
                  "fs/gfs2/glock.h",
                  "fs/gfs2/incore.h",
                  "fs/gfs2/lock_dlm.c",
                  "fs/gfs2/ops_fstype.c",
                  "fs/gfs2/super.c"
               ],
               "versions": [
                  {
                     "version": "fb6791d100d1",
                     "lessThan": "0636b34b4458",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fb6791d100d1",
                     "lessThan": "e42e8a24d7f0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fb6791d100d1",
                     "lessThan": "501cd8fabf62",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "fb6791d100d1",
                     "lessThan": "d98779e68772",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/gfs2/glock.c",
                  "fs/gfs2/glock.h",
                  "fs/gfs2/incore.h",
                  "fs/gfs2/lock_dlm.c",
                  "fs/gfs2/ops_fstype.c",
                  "fs/gfs2/super.c"
               ],
               "versions": [
                  {
                     "version": "3.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.33",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.12",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9.3",
                     "lessThanOrEqual": "6.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/0636b34b44589b142700ac137b5f69802cfe2e37"
            },
            {
               "url": "https://git.kernel.org/stable/c/e42e8a24d7f02d28763d16ca7ec5fc6d1f142af0"
            },
            {
               "url": "https://git.kernel.org/stable/c/501cd8fabf621d10bd4893e37f6ce6c20523c8ca"
            },
            {
               "url": "https://git.kernel.org/stable/c/d98779e687726d8f8860f1c54b5687eec5f63a73"
            }
         ],
         "title": "gfs2: Fix potential glock use-after-free on unmount",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-38570",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}