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's 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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