ghsa-8rjr-8h65-297v
Vulnerability from github
Published
2024-03-25 12:30
Modified
2024-05-16 21:31
Details

In the Linux kernel, the following vulnerability has been resolved:

misc/uss720: fix memory leak in uss720_probe

uss720_probe forgets to decrease the refcount of usbdev in uss720_probe. Fix this by decreasing the refcount of usbdev by usb_put_dev.

BUG: memory leak unreferenced object 0xffff888101113800 (size 2048): comm "kworker/0:1", pid 7, jiffies 4294956777 (age 28.870s) hex dump (first 32 bytes): ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 ....1........... 00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................ backtrace: [] kmalloc include/linux/slab.h:554 [inline] [] kzalloc include/linux/slab.h:684 [inline] [] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582 [] hub_port_connect drivers/usb/core/hub.c:5129 [inline] [] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] [] port_event drivers/usb/core/hub.c:5509 [inline] [] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591 [] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [] kthread+0x178/0x1b0 kernel/kthread.c:292 [] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2021-47173"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T10:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc/uss720: fix memory leak in uss720_probe\n\nuss720_probe forgets to decrease the refcount of usbdev in uss720_probe.\nFix this by decreasing the refcount of usbdev by usb_put_dev.\n\nBUG: memory leak\nunreferenced object 0xffff888101113800 (size 2048):\n  comm \"kworker/0:1\", pid 7, jiffies 4294956777 (age 28.870s)\n  hex dump (first 32 bytes):\n    ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00  ....1...........\n    00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00  ................\n  backtrace:\n    [\u003cffffffff82b8e822\u003e] kmalloc include/linux/slab.h:554 [inline]\n    [\u003cffffffff82b8e822\u003e] kzalloc include/linux/slab.h:684 [inline]\n    [\u003cffffffff82b8e822\u003e] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582\n    [\u003cffffffff82b98441\u003e] hub_port_connect drivers/usb/core/hub.c:5129 [inline]\n    [\u003cffffffff82b98441\u003e] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]\n    [\u003cffffffff82b98441\u003e] port_event drivers/usb/core/hub.c:5509 [inline]\n    [\u003cffffffff82b98441\u003e] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591\n    [\u003cffffffff81259229\u003e] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275\n    [\u003cffffffff81259b19\u003e] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421\n    [\u003cffffffff81261228\u003e] kthread+0x178/0x1b0 kernel/kthread.c:292\n    [\u003cffffffff8100227f\u003e] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294",
  "id": "GHSA-8rjr-8h65-297v",
  "modified": "2024-05-16T21:31:56Z",
  "published": "2024-03-25T12:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de"
    }
  ],
  "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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