CVE-2022-48920 (GCVE-0-2022-48920)
Vulnerability from cvelistv5
Published
2024-08-22 01:32
Modified
2025-12-23 13:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: get rid of warning on transaction commit when using flushoncommit When using the flushoncommit mount option, during almost every transaction commit we trigger a warning from __writeback_inodes_sb_nr(): $ cat fs/fs-writeback.c: (...) static void __writeback_inodes_sb_nr(struct super_block *sb, ... { (...) WARN_ON(!rwsem_is_locked(&sb->s_umount)); (...) } (...) The trace produced in dmesg looks like the following: [947.473890] WARNING: CPU: 5 PID: 930 at fs/fs-writeback.c:2610 __writeback_inodes_sb_nr+0x7e/0xb3 [947.481623] Modules linked in: nfsd nls_cp437 cifs asn1_decoder cifs_arc4 fscache cifs_md4 ipmi_ssif [947.489571] CPU: 5 PID: 930 Comm: btrfs-transacti Not tainted 95.16.3-srb-asrock-00001-g36437ad63879 #186 [947.497969] RIP: 0010:__writeback_inodes_sb_nr+0x7e/0xb3 [947.502097] Code: 24 10 4c 89 44 24 18 c6 (...) [947.519760] RSP: 0018:ffffc90000777e10 EFLAGS: 00010246 [947.523818] RAX: 0000000000000000 RBX: 0000000000963300 RCX: 0000000000000000 [947.529765] RDX: 0000000000000000 RSI: 000000000000fa51 RDI: ffffc90000777e50 [947.535740] RBP: ffff888101628a90 R08: ffff888100955800 R09: ffff888100956000 [947.541701] R10: 0000000000000002 R11: 0000000000000001 R12: ffff888100963488 [947.547645] R13: ffff888100963000 R14: ffff888112fb7200 R15: ffff888100963460 [947.553621] FS: 0000000000000000(0000) GS:ffff88841fd40000(0000) knlGS:0000000000000000 [947.560537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [947.565122] CR2: 0000000008be50c4 CR3: 000000000220c000 CR4: 00000000001006e0 [947.571072] Call Trace: [947.572354] <TASK> [947.573266] btrfs_commit_transaction+0x1f1/0x998 [947.576785] ? start_transaction+0x3ab/0x44e [947.579867] ? schedule_timeout+0x8a/0xdd [947.582716] transaction_kthread+0xe9/0x156 [947.585721] ? btrfs_cleanup_transaction.isra.0+0x407/0x407 [947.590104] kthread+0x131/0x139 [947.592168] ? set_kthread_struct+0x32/0x32 [947.595174] ret_from_fork+0x22/0x30 [947.597561] </TASK> [947.598553] ---[ end trace 644721052755541c ]--- This is because we started using writeback_inodes_sb() to flush delalloc when committing a transaction (when using -o flushoncommit), in order to avoid deadlocks with filesystem freeze operations. This change was made by commit ce8ea7cc6eb313 ("btrfs: don't call btrfs_start_delalloc_roots in flushoncommit"). After that change we started producing that warning, and every now and then a user reports this since the warning happens too often, it spams dmesg/syslog, and a user is unsure if this reflects any problem that might compromise the filesystem's reliability. We can not just lock the sb->s_umount semaphore before calling writeback_inodes_sb(), because that would at least deadlock with filesystem freezing, since at fs/super.c:freeze_super() sync_filesystem() is called while we are holding that semaphore in write mode, and that can trigger a transaction commit, resulting in a deadlock. It would also trigger the same type of deadlock in the unmount path. Possibly, it could also introduce some other locking dependencies that lockdep would report. To fix this call try_to_writeback_inodes_sb() instead of writeback_inodes_sb(), because that will try to read lock sb->s_umount and then will only call writeback_inodes_sb() if it was able to lock it. This is fine because the cases where it can't read lock sb->s_umount are during a filesystem unmount or during a filesystem freeze - in those cases sb->s_umount is write locked and sync_filesystem() is called, which calls writeback_inodes_sb(). In other words, in all cases where we can't take a read lock on sb->s_umount, writeback is already being triggered elsewhere. An alternative would be to call btrfs_start_delalloc_roots() with a number of pages different from LONG_MAX, for example matching the number of delalloc bytes we currently have, in ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: ce8ea7cc6eb3139f4c730d647325e69354159b0f
Version: ce8ea7cc6eb3139f4c730d647325e69354159b0f
Version: ce8ea7cc6eb3139f4c730d647325e69354159b0f
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48920",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:33:31.693996Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:01.186Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/transaction.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "850a77c999b81dd2724efd2684068d6f90db8c16",
              "status": "affected",
              "version": "ce8ea7cc6eb3139f4c730d647325e69354159b0f",
              "versionType": "git"
            },
            {
              "lessThan": "e4d044dbffcd570351f21c747fc77ff90aed7f2e",
              "status": "affected",
              "version": "ce8ea7cc6eb3139f4c730d647325e69354159b0f",
              "versionType": "git"
            },
            {
              "lessThan": "a0f0cf8341e34e5d2265bfd3a7ad68342da1e2aa",
              "status": "affected",
              "version": "ce8ea7cc6eb3139f4c730d647325e69354159b0f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/transaction.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.27",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.13",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: get rid of warning on transaction commit when using flushoncommit\n\nWhen using the flushoncommit mount option, during almost every transaction\ncommit we trigger a warning from __writeback_inodes_sb_nr():\n\n  $ cat fs/fs-writeback.c:\n  (...)\n  static void __writeback_inodes_sb_nr(struct super_block *sb, ...\n  {\n        (...)\n        WARN_ON(!rwsem_is_locked(\u0026sb-\u003es_umount));\n        (...)\n  }\n  (...)\n\nThe trace produced in dmesg looks like the following:\n\n  [947.473890] WARNING: CPU: 5 PID: 930 at fs/fs-writeback.c:2610 __writeback_inodes_sb_nr+0x7e/0xb3\n  [947.481623] Modules linked in: nfsd nls_cp437 cifs asn1_decoder cifs_arc4 fscache cifs_md4 ipmi_ssif\n  [947.489571] CPU: 5 PID: 930 Comm: btrfs-transacti Not tainted 95.16.3-srb-asrock-00001-g36437ad63879 #186\n  [947.497969] RIP: 0010:__writeback_inodes_sb_nr+0x7e/0xb3\n  [947.502097] Code: 24 10 4c 89 44 24 18 c6 (...)\n  [947.519760] RSP: 0018:ffffc90000777e10 EFLAGS: 00010246\n  [947.523818] RAX: 0000000000000000 RBX: 0000000000963300 RCX: 0000000000000000\n  [947.529765] RDX: 0000000000000000 RSI: 000000000000fa51 RDI: ffffc90000777e50\n  [947.535740] RBP: ffff888101628a90 R08: ffff888100955800 R09: ffff888100956000\n  [947.541701] R10: 0000000000000002 R11: 0000000000000001 R12: ffff888100963488\n  [947.547645] R13: ffff888100963000 R14: ffff888112fb7200 R15: ffff888100963460\n  [947.553621] FS:  0000000000000000(0000) GS:ffff88841fd40000(0000) knlGS:0000000000000000\n  [947.560537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  [947.565122] CR2: 0000000008be50c4 CR3: 000000000220c000 CR4: 00000000001006e0\n  [947.571072] Call Trace:\n  [947.572354]  \u003cTASK\u003e\n  [947.573266]  btrfs_commit_transaction+0x1f1/0x998\n  [947.576785]  ? start_transaction+0x3ab/0x44e\n  [947.579867]  ? schedule_timeout+0x8a/0xdd\n  [947.582716]  transaction_kthread+0xe9/0x156\n  [947.585721]  ? btrfs_cleanup_transaction.isra.0+0x407/0x407\n  [947.590104]  kthread+0x131/0x139\n  [947.592168]  ? set_kthread_struct+0x32/0x32\n  [947.595174]  ret_from_fork+0x22/0x30\n  [947.597561]  \u003c/TASK\u003e\n  [947.598553] ---[ end trace 644721052755541c ]---\n\nThis is because we started using writeback_inodes_sb() to flush delalloc\nwhen committing a transaction (when using -o flushoncommit), in order to\navoid deadlocks with filesystem freeze operations. This change was made\nby commit ce8ea7cc6eb313 (\"btrfs: don\u0027t call btrfs_start_delalloc_roots\nin flushoncommit\"). After that change we started producing that warning,\nand every now and then a user reports this since the warning happens too\noften, it spams dmesg/syslog, and a user is unsure if this reflects any\nproblem that might compromise the filesystem\u0027s reliability.\n\nWe can not just lock the sb-\u003es_umount semaphore before calling\nwriteback_inodes_sb(), because that would at least deadlock with\nfilesystem freezing, since at fs/super.c:freeze_super() sync_filesystem()\nis called while we are holding that semaphore in write mode, and that can\ntrigger a transaction commit, resulting in a deadlock. It would also\ntrigger the same type of deadlock in the unmount path. Possibly, it could\nalso introduce some other locking dependencies that lockdep would report.\n\nTo fix this call try_to_writeback_inodes_sb() instead of\nwriteback_inodes_sb(), because that will try to read lock sb-\u003es_umount\nand then will only call writeback_inodes_sb() if it was able to lock it.\nThis is fine because the cases where it can\u0027t read lock sb-\u003es_umount\nare during a filesystem unmount or during a filesystem freeze - in those\ncases sb-\u003es_umount is write locked and sync_filesystem() is called, which\ncalls writeback_inodes_sb(). In other words, in all cases where we can\u0027t\ntake a read lock on sb-\u003es_umount, writeback is already being triggered\nelsewhere.\n\nAn alternative would be to call btrfs_start_delalloc_roots() with a\nnumber of pages different from LONG_MAX, for example matching the number\nof delalloc bytes we currently have, in \n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:21:08.828Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/850a77c999b81dd2724efd2684068d6f90db8c16"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4d044dbffcd570351f21c747fc77ff90aed7f2e"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0f0cf8341e34e5d2265bfd3a7ad68342da1e2aa"
        }
      ],
      "title": "btrfs: get rid of warning on transaction commit when using flushoncommit",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48920",
    "datePublished": "2024-08-22T01:32:50.796Z",
    "dateReserved": "2024-08-21T06:06:23.295Z",
    "dateUpdated": "2025-12-23T13:21:08.828Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48920\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:33:31.693996Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:12.763Z\"}}], \"cna\": {\"title\": \"btrfs: get rid of warning on transaction commit when using flushoncommit\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ce8ea7cc6eb3139f4c730d647325e69354159b0f\", \"lessThan\": \"850a77c999b81dd2724efd2684068d6f90db8c16\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ce8ea7cc6eb3139f4c730d647325e69354159b0f\", \"lessThan\": \"e4d044dbffcd570351f21c747fc77ff90aed7f2e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ce8ea7cc6eb3139f4c730d647325e69354159b0f\", \"lessThan\": \"a0f0cf8341e34e5d2265bfd3a7ad68342da1e2aa\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/btrfs/transaction.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.27\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/transaction.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/850a77c999b81dd2724efd2684068d6f90db8c16\"}, {\"url\": \"https://git.kernel.org/stable/c/e4d044dbffcd570351f21c747fc77ff90aed7f2e\"}, {\"url\": \"https://git.kernel.org/stable/c/a0f0cf8341e34e5d2265bfd3a7ad68342da1e2aa\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: get rid of warning on transaction commit when using flushoncommit\\n\\nWhen using the flushoncommit mount option, during almost every transaction\\ncommit we trigger a warning from __writeback_inodes_sb_nr():\\n\\n  $ cat fs/fs-writeback.c:\\n  (...)\\n  static void __writeback_inodes_sb_nr(struct super_block *sb, ...\\n  {\\n        (...)\\n        WARN_ON(!rwsem_is_locked(\u0026sb-\u003es_umount));\\n        (...)\\n  }\\n  (...)\\n\\nThe trace produced in dmesg looks like the following:\\n\\n  [947.473890] WARNING: CPU: 5 PID: 930 at fs/fs-writeback.c:2610 __writeback_inodes_sb_nr+0x7e/0xb3\\n  [947.481623] Modules linked in: nfsd nls_cp437 cifs asn1_decoder cifs_arc4 fscache cifs_md4 ipmi_ssif\\n  [947.489571] CPU: 5 PID: 930 Comm: btrfs-transacti Not tainted 95.16.3-srb-asrock-00001-g36437ad63879 #186\\n  [947.497969] RIP: 0010:__writeback_inodes_sb_nr+0x7e/0xb3\\n  [947.502097] Code: 24 10 4c 89 44 24 18 c6 (...)\\n  [947.519760] RSP: 0018:ffffc90000777e10 EFLAGS: 00010246\\n  [947.523818] RAX: 0000000000000000 RBX: 0000000000963300 RCX: 0000000000000000\\n  [947.529765] RDX: 0000000000000000 RSI: 000000000000fa51 RDI: ffffc90000777e50\\n  [947.535740] RBP: ffff888101628a90 R08: ffff888100955800 R09: ffff888100956000\\n  [947.541701] R10: 0000000000000002 R11: 0000000000000001 R12: ffff888100963488\\n  [947.547645] R13: ffff888100963000 R14: ffff888112fb7200 R15: ffff888100963460\\n  [947.553621] FS:  0000000000000000(0000) GS:ffff88841fd40000(0000) knlGS:0000000000000000\\n  [947.560537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  [947.565122] CR2: 0000000008be50c4 CR3: 000000000220c000 CR4: 00000000001006e0\\n  [947.571072] Call Trace:\\n  [947.572354]  \u003cTASK\u003e\\n  [947.573266]  btrfs_commit_transaction+0x1f1/0x998\\n  [947.576785]  ? start_transaction+0x3ab/0x44e\\n  [947.579867]  ? schedule_timeout+0x8a/0xdd\\n  [947.582716]  transaction_kthread+0xe9/0x156\\n  [947.585721]  ? btrfs_cleanup_transaction.isra.0+0x407/0x407\\n  [947.590104]  kthread+0x131/0x139\\n  [947.592168]  ? set_kthread_struct+0x32/0x32\\n  [947.595174]  ret_from_fork+0x22/0x30\\n  [947.597561]  \u003c/TASK\u003e\\n  [947.598553] ---[ end trace 644721052755541c ]---\\n\\nThis is because we started using writeback_inodes_sb() to flush delalloc\\nwhen committing a transaction (when using -o flushoncommit), in order to\\navoid deadlocks with filesystem freeze operations. This change was made\\nby commit ce8ea7cc6eb313 (\\\"btrfs: don\u0027t call btrfs_start_delalloc_roots\\nin flushoncommit\\\"). After that change we started producing that warning,\\nand every now and then a user reports this since the warning happens too\\noften, it spams dmesg/syslog, and a user is unsure if this reflects any\\nproblem that might compromise the filesystem\u0027s reliability.\\n\\nWe can not just lock the sb-\u003es_umount semaphore before calling\\nwriteback_inodes_sb(), because that would at least deadlock with\\nfilesystem freezing, since at fs/super.c:freeze_super() sync_filesystem()\\nis called while we are holding that semaphore in write mode, and that can\\ntrigger a transaction commit, resulting in a deadlock. It would also\\ntrigger the same type of deadlock in the unmount path. Possibly, it could\\nalso introduce some other locking dependencies that lockdep would report.\\n\\nTo fix this call try_to_writeback_inodes_sb() instead of\\nwriteback_inodes_sb(), because that will try to read lock sb-\u003es_umount\\nand then will only call writeback_inodes_sb() if it was able to lock it.\\nThis is fine because the cases where it can\u0027t read lock sb-\u003es_umount\\nare during a filesystem unmount or during a filesystem freeze - in those\\ncases sb-\u003es_umount is write locked and sync_filesystem() is called, which\\ncalls writeback_inodes_sb(). In other words, in all cases where we can\u0027t\\ntake a read lock on sb-\u003es_umount, writeback is already being triggered\\nelsewhere.\\n\\nAn alternative would be to call btrfs_start_delalloc_roots() with a\\nnumber of pages different from LONG_MAX, for example matching the number\\nof delalloc bytes we currently have, in \\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.27\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.13\", \"versionStartIncluding\": \"4.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17\", \"versionStartIncluding\": \"4.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-12-23T13:21:08.828Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48920\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-23T13:21:08.828Z\", \"dateReserved\": \"2024-08-21T06:06:23.295Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-22T01:32:50.796Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.