CVE-2022-49301 (GCVE-0-2022-49301)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2025-12-23 13:23
VLAI?
Title
staging: rtl8712: fix uninit-value in usb_read8() and friends
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix uninit-value in usb_read8() and friends When r8712_usbctrl_vendorreq() returns negative, 'data' in usb_read{8,16,32} will not be initialized. BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:643 [inline] BUG: KMSAN: uninit-value in string+0x4ec/0x6f0 lib/vsprintf.c:725 string_nocheck lib/vsprintf.c:643 [inline] string+0x4ec/0x6f0 lib/vsprintf.c:725 vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806 va_format lib/vsprintf.c:1704 [inline] pointer+0x18e6/0x1f70 lib/vsprintf.c:2443 vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2810 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158 vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256 dev_vprintk_emit+0x5ef/0x6d0 drivers/base/core.c:4604 dev_printk_emit+0x1dd/0x21f drivers/base/core.c:4615 __dev_printk+0x3be/0x440 drivers/base/core.c:4627 _dev_info+0x1ea/0x22f drivers/base/core.c:4673 r871xu_drv_init+0x1929/0x3070 drivers/staging/rtl8712/usb_intf.c:401 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x6c7/0x1350 drivers/base/dd.c:621 __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+0x6c7/0x1350 drivers/base/dd.c:621 __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+0x1b91/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5363 [inline] hub_port_connect_change drivers/usb/core/hub.c:5507 [inline] port_event drivers/usb/core/hub.c:5665 [inline] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5747 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2289 worker_thread+0x10d0/0x2240 kernel/workqueue.c:2436 kthread+0x3c7/0x500 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 Local variable data created at: usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33 r8712_read8+0xa5/0xd0 drivers/staging/rtl8712/rtl8712_io.c:29 KMSAN: uninit-value in r871xu_drv_init https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 58762f1c63c75cbe1dc393eed3c9cf8e38310ca1 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 33ef21d55418ab6a62a63fd550b2dbe297433372 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < 95b0f54f8a898072a2810c05fab34d971f23a612 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < d7ed3c85da0b230bcdf5329acfe012ed093f3daa (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < de075af8c404f7d59ed34df230aedd9f645fb846 (git)
Affected: 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef , < d1b57669732d09da7e13ef86d058dab0cd57f6e0 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.37
Unaffected: 0 , < 2.6.37 (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)
Create a notification for this product.
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix uninit-value in usb_read8() and friends\n\nWhen r8712_usbctrl_vendorreq() returns negative, \u0027data\u0027 in\nusb_read{8,16,32} will not be initialized.\n\nBUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:643 [inline]\nBUG: KMSAN: uninit-value in string+0x4ec/0x6f0 lib/vsprintf.c:725\n string_nocheck lib/vsprintf.c:643 [inline]\n string+0x4ec/0x6f0 lib/vsprintf.c:725\n vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806\n va_format lib/vsprintf.c:1704 [inline]\n pointer+0x18e6/0x1f70 lib/vsprintf.c:2443\n vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2810\n vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158\n vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256\n dev_vprintk_emit+0x5ef/0x6d0 drivers/base/core.c:4604\n dev_printk_emit+0x1dd/0x21f drivers/base/core.c:4615\n __dev_printk+0x3be/0x440 drivers/base/core.c:4627\n _dev_info+0x1ea/0x22f drivers/base/core.c:4673\n r871xu_drv_init+0x1929/0x3070 drivers/staging/rtl8712/usb_intf.c:401\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n really_probe+0x6c7/0x1350 drivers/base/dd.c:621\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+0x6c7/0x1350 drivers/base/dd.c:621\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+0x1b91/0x2950 drivers/usb/core/hub.c:2566\n hub_port_connect drivers/usb/core/hub.c:5363 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]\n port_event drivers/usb/core/hub.c:5665 [inline]\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5747\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2289\n worker_thread+0x10d0/0x2240 kernel/workqueue.c:2436\n kthread+0x3c7/0x500 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30\n\nLocal variable data created at:\n usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33\n r8712_read8+0xa5/0xd0 drivers/staging/rtl8712/rtl8712_io.c:29\n\nKMSAN: uninit-value in r871xu_drv_init\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:23:11.348Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/58762f1c63c75cbe1dc393eed3c9cf8e38310ca1"
        },
        {
          "url": "https://git.kernel.org/stable/c/33ef21d55418ab6a62a63fd550b2dbe297433372"
        },
        {
          "url": "https://git.kernel.org/stable/c/95b0f54f8a898072a2810c05fab34d971f23a612"
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      "title": "staging: rtl8712: fix uninit-value in usb_read8() and friends",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49301",
    "datePublished": "2025-02-26T02:10:36.072Z",
    "dateReserved": "2025-02-26T02:08:31.535Z",
    "dateUpdated": "2025-12-23T13:23:11.348Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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\"d7ed3c85da0b230bcdf5329acfe012ed093f3daa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"de075af8c404f7d59ed34df230aedd9f645fb846\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef\", \"lessThan\": \"d1b57669732d09da7e13ef86d058dab0cd57f6e0\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/staging/rtl8712/usb_ops.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\": \"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_ops.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/58762f1c63c75cbe1dc393eed3c9cf8e38310ca1\"}, {\"url\": \"https://git.kernel.org/stable/c/33ef21d55418ab6a62a63fd550b2dbe297433372\"}, {\"url\": \"https://git.kernel.org/stable/c/95b0f54f8a898072a2810c05fab34d971f23a612\"}, {\"url\": \"https://git.kernel.org/stable/c/d7ed3c85da0b230bcdf5329acfe012ed093f3daa\"}, {\"url\": \"https://git.kernel.org/stable/c/de075af8c404f7d59ed34df230aedd9f645fb846\"}, {\"url\": \"https://git.kernel.org/stable/c/d1b57669732d09da7e13ef86d058dab0cd57f6e0\"}], \"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 usb_read8() and friends\\n\\nWhen r8712_usbctrl_vendorreq() returns negative, \u0027data\u0027 in\\nusb_read{8,16,32} will not be initialized.\\n\\nBUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:643 [inline]\\nBUG: KMSAN: uninit-value in string+0x4ec/0x6f0 lib/vsprintf.c:725\\n string_nocheck lib/vsprintf.c:643 [inline]\\n string+0x4ec/0x6f0 lib/vsprintf.c:725\\n vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806\\n va_format lib/vsprintf.c:1704 [inline]\\n pointer+0x18e6/0x1f70 lib/vsprintf.c:2443\\n vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2810\\n vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158\\n vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256\\n dev_vprintk_emit+0x5ef/0x6d0 drivers/base/core.c:4604\\n dev_printk_emit+0x1dd/0x21f drivers/base/core.c:4615\\n __dev_printk+0x3be/0x440 drivers/base/core.c:4627\\n _dev_info+0x1ea/0x22f drivers/base/core.c:4673\\n r871xu_drv_init+0x1929/0x3070 drivers/staging/rtl8712/usb_intf.c:401\\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\\n really_probe+0x6c7/0x1350 drivers/base/dd.c:621\\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+0x6c7/0x1350 drivers/base/dd.c:621\\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+0x1b91/0x2950 drivers/usb/core/hub.c:2566\\n hub_port_connect drivers/usb/core/hub.c:5363 [inline]\\n hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]\\n port_event drivers/usb/core/hub.c:5665 [inline]\\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5747\\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2289\\n worker_thread+0x10d0/0x2240 kernel/workqueue.c:2436\\n kthread+0x3c7/0x500 kernel/kthread.c:376\\n ret_from_fork+0x1f/0x30\\n\\nLocal variable data created at:\\n usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33\\n r8712_read8+0xa5/0xd0 drivers/staging/rtl8712/rtl8712_io.c:29\\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\": \"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\": \"2025-12-23T13:23:11.348Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49301\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-23T13:23:11.348Z\", \"dateReserved\": \"2025-02-26T02:08:31.535Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:10:36.072Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.