ghsa-gv56-7jpr-6c22
Vulnerability from github
Published
2025-04-14 21:32
Modified
2025-04-14 21:32
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49298"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:06Z",
    "severity": "MODERATE"
  },
  "details": "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",
  "id": "GHSA-gv56-7jpr-6c22",
  "modified": "2025-04-14T21:32:21Z",
  "published": "2025-04-14T21:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49298"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52a0d88c328098b4e9fb8f2f3877fec0eff4104b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/70df04433fd351ba72bc635bd0b5fe443d9ac964"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f36e754a1f0bafb9feeea63463de78080acb6de0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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