CVE-2022-49298 (GCVE-0-2022-49298)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:01 – Updated: 2025-12-23 13:23
VLAI?
Title
staging: rtl8712: fix uninit-value in r871xu_drv_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix uninit-value in r871xu_drv_init() When 'tmpU1b' returns from r8712_read8(padapter, EE_9346CR) is 0, 'mac[6]' will not be initialized. BUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541 r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:970 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:970 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Local variable mac created at: r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 KMSAN: uninit-value in r871xu_drv_init https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 0b7371a22489cbb2e8e826ca03fb5ce92afb04fe (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 277faa442fe0c59f418ac53f47a78e1266addd65 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 52a0d88c328098b4e9fb8f2f3877fec0eff4104b (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < ff727ab0b7d7a56b5ef281f12abd00c4b85894e9 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < f36e754a1f0bafb9feeea63463de78080acb6de0 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 76a964ad0ea8f2b10abd69a7532e174a28258283 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 70df04433fd351ba72bc635bd0b5fe443d9ac964 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 0458e5428e5e959d201a40ffe71d762a79ecedc4 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix uninit-value in r871xu_drv_init()\n\nWhen \u0027tmpU1b\u0027 returns from r8712_read8(padapter, EE_9346CR) is 0,\n\u0027mac[6]\u0027 will not be initialized.\n\nBUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170\n usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238\n usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566\n hub_port_connect drivers/usb/core/hub.c:5358 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]\n port_event drivers/usb/core/hub.c:5660 [inline]\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307\n worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454\n kthread+0x3c7/0x500 kernel/kthread.c:377\n ret_from_fork+0x1f/0x30\n\nLocal variable mac created at:\n r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n\nKMSAN: uninit-value in r871xu_drv_init\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8"
        }
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      "references": [
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          "url": "https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe"
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          "url": "https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65"
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        },
        {
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        },
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          "url": "https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9"
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          "url": "https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4"
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      ],
      "title": "staging: rtl8712: fix uninit-value in r871xu_drv_init()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49298",
    "datePublished": "2025-02-26T02:01:27.111Z",
    "dateReserved": "2025-02-26T01:49:39.302Z",
    "dateUpdated": "2025-12-23T13:23:08.391Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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\"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:13:19.042Z\"}}], \"cna\": {\"title\": \"staging: rtl8712: fix uninit-value in r871xu_drv_init()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"0b7371a22489cbb2e8e826ca03fb5ce92afb04fe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"277faa442fe0c59f418ac53f47a78e1266addd65\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"52a0d88c328098b4e9fb8f2f3877fec0eff4104b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"ff727ab0b7d7a56b5ef281f12abd00c4b85894e9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"f36e754a1f0bafb9feeea63463de78080acb6de0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"76a964ad0ea8f2b10abd69a7532e174a28258283\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"70df04433fd351ba72bc635bd0b5fe443d9ac964\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"0458e5428e5e959d201a40ffe71d762a79ecedc4\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/staging/rtl8712/usb_intf.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.37\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.37\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.318\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.283\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.247\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.122\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.47\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/staging/rtl8712/usb_intf.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe\"}, {\"url\": \"https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65\"}, {\"url\": \"https://git.kernel.org/stable/c/a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2\"}, {\"url\": \"https://git.kernel.org/stable/c/52a0d88c328098b4e9fb8f2f3877fec0eff4104b\"}, {\"url\": \"https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9\"}, {\"url\": \"https://git.kernel.org/stable/c/f36e754a1f0bafb9feeea63463de78080acb6de0\"}, {\"url\": \"https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283\"}, {\"url\": \"https://git.kernel.org/stable/c/70df04433fd351ba72bc635bd0b5fe443d9ac964\"}, {\"url\": \"https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nstaging: rtl8712: fix uninit-value in r871xu_drv_init()\\n\\nWhen \u0027tmpU1b\u0027 returns from r8712_read8(padapter, EE_9346CR) is 0,\\n\u0027mac[6]\u0027 will not be initialized.\\n\\nBUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\\n r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\\n driver_probe_device drivers/base/dd.c:782 [inline]\\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\\n usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170\\n usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238\\n usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293\\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\\n driver_probe_device drivers/base/dd.c:782 [inline]\\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\\n usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566\\n hub_port_connect drivers/usb/core/hub.c:5358 [inline]\\n hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]\\n port_event drivers/usb/core/hub.c:5660 [inline]\\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742\\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307\\n worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454\\n kthread+0x3c7/0x500 kernel/kthread.c:377\\n ret_from_fork+0x1f/0x30\\n\\nLocal variable mac created at:\\n r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394\\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\\n\\nKMSAN: uninit-value in r871xu_drv_init\\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.318\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.283\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.247\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.198\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.122\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.47\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.15\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.4\", \"versionStartIncluding\": \"2.6.37\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"2.6.37\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-12-23T13:23:08.391Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49298\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-23T13:23:08.391Z\", \"dateReserved\": \"2025-02-26T01:49:39.302Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:01:27.111Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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