staging: rtl8712: fix uninit-value in usb_read8() and friends

{
  "id": "fe58c3a437ca82adce485760bd6a0d20af025be53c3358ea8cb7da39e86f2d3f",
  "url": "https://osv.dev/vulnerability/CVE-2022-49301",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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+0x1ff",
    "evidence": "osv:CVE-2022-49301",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.198",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.122",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.47",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.15",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49301",
      "aliases": [
        "CVE-2022-49301"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "33ef21d55418ab6a62a63fd550b2dbe297433372"
                },
                {
                  "fixed": "95b0f54f8a898072a2810c05fab34d971f23a612"
                },
                {
                  "fixed": "d7ed3c85da0b230bcdf5329acfe012ed093f3daa"
                },
                {
                  "fixed": "de075af8c404f7d59ed34df230aedd9f645fb846"
                },
                {
                  "fixed": "d1b57669732d09da7e13ef86d058dab0cd57f6e0"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49301.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.37"
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                  "fixed": "5.4.198"
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              ]
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.122"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.47"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.17.15"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49301.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.388457523Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/33ef21d55418ab6a62a63fd550b2dbe297433372",
        "https://git.kernel.org/stable/c/58762f1c63c75cbe1dc393eed3c9cf8e38310ca1",
        "https://git.kernel.org/stable/c/95b0f54f8a898072a2810c05fab34d971f23a612",
        "https://git.kernel.org/stable/c/d1b57669732d09da7e13ef86d058dab0cd57f6e0",
        "https://git.kernel.org/stable/c/d7ed3c85da0b230bcdf5329acfe012ed093f3daa",
        "https://git.kernel.org/stable/c/de075af8c404f7d59ed34df230aedd9f645fb846",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49301.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49301",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49301.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49301",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489365,
  "published_at": "2025-02-26T02:10:36.072+00:00"
}