ghsa-hm5h-pgjm-xwqc
Vulnerability from github
Published
2024-08-21 09:31
Modified
2024-09-12 18:31
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:

nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()

Fix a use-after-free that occurs in hcd when in_urb sent from pn533_usb_send_frame() is completed earlier than out_urb. Its callback frees the skb data in pn533_send_async_complete() that is used as a transfer buffer of out_urb. Wait before sending in_urb until the callback of out_urb is called. To modify the callback of out_urb alone, separate the complete function of out_urb and ack_urb.

Found by a modified version of syzkaller.

BUG: KASAN: use-after-free in dummy_timer Call Trace: memcpy (mm/kasan/shadow.c:65) dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352) transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453) dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972) arch_static_branch (arch/x86/include/asm/jump_label.h:27) static_key_false (include/linux/jump_label.h:207) timer_expire_exit (include/trace/events/timer.h:127) call_timer_fn (kernel/time/timer.c:1475) expire_timers (kernel/time/timer.c:1519) __run_timers (kernel/time/timer.c:1790) run_timer_softirq (kernel/time/timer.c:1803)

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52907"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:06Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()\n\nFix a use-after-free that occurs in hcd when in_urb sent from\npn533_usb_send_frame() is completed earlier than out_urb. Its callback\nfrees the skb data in pn533_send_async_complete() that is used as a\ntransfer buffer of out_urb. Wait before sending in_urb until the\ncallback of out_urb is called. To modify the callback of out_urb alone,\nseparate the complete function of out_urb and ack_urb.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: use-after-free in dummy_timer\nCall Trace:\n memcpy (mm/kasan/shadow.c:65)\n dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)\n transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)\n arch_static_branch (arch/x86/include/asm/jump_label.h:27)\n static_key_false (include/linux/jump_label.h:207)\n timer_expire_exit (include/trace/events/timer.h:127)\n call_timer_fn (kernel/time/timer.c:1475)\n expire_timers (kernel/time/timer.c:1519)\n __run_timers (kernel/time/timer.c:1790)\n run_timer_softirq (kernel/time/timer.c:1803)",
  "id": "GHSA-hm5h-pgjm-xwqc",
  "modified": "2024-09-12T18:31:39Z",
  "published": "2024-08-21T09:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52907"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d"
    }
  ],
  "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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