ghsa-qr7m-wmg3-5x2f
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-10-25 21:31
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:

HID: core: fix shift-out-of-bounds in hid_report_raw_event

Syzbot reported shift-out-of-bounds in hid_report_raw_event.

microsoft 0003:045E:07DA.0001: hid_field_extract() called with n (128) > 32! (swapper/0) ====================================================================== UBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:1323:20 shift exponent 127 is too large for 32-bit type 'int' CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0 Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x3a6/0x420 lib/ubsan.c:322 snto32 drivers/hid/hid-core.c:1323 [inline] hid_input_fetch_field drivers/hid/hid-core.c:1572 [inline] hid_process_report drivers/hid/hid-core.c:1665 [inline] hid_report_raw_event+0xd56/0x18b0 drivers/hid/hid-core.c:1998 hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066 hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671 dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers+0x76a/0x980 kernel/time/timer.c:1790 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803 __do_softirq+0x277/0x75b kernel/softirq.c:571 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107 ======================================================================

If the size of the integer (unsigned n) is bigger than 32 in snto32(), shift exponent will be too large for 32-bit type 'int', resulting in a shift-out-of-bounds bug. Fix this by adding a check on the size of the integer (unsigned n) in snto32(). To add support for n greater than 32 bits, set n to 32, if n is greater than 32.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48978"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T20:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: fix shift-out-of-bounds in hid_report_raw_event\n\nSyzbot reported shift-out-of-bounds in hid_report_raw_event.\n\nmicrosoft 0003:045E:07DA.0001: hid_field_extract() called with n (128) \u003e\n32! (swapper/0)\n======================================================================\nUBSAN: shift-out-of-bounds in drivers/hid/hid-core.c:1323:20\nshift exponent 127 is too large for 32-bit type \u0027int\u0027\nCPU: 0 PID: 0 Comm: swapper/0 Not tainted\n6.1.0-rc4-syzkaller-00159-g4bbf3422df78 #0\nHardware name: Google Compute Engine/Google Compute Engine, BIOS\nGoogle 10/26/2022\nCall Trace:\n \u003cIRQ\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:151 [inline]\n __ubsan_handle_shift_out_of_bounds+0x3a6/0x420 lib/ubsan.c:322\n snto32 drivers/hid/hid-core.c:1323 [inline]\n hid_input_fetch_field drivers/hid/hid-core.c:1572 [inline]\n hid_process_report drivers/hid/hid-core.c:1665 [inline]\n hid_report_raw_event+0xd56/0x18b0 drivers/hid/hid-core.c:1998\n hid_input_report+0x408/0x4f0 drivers/hid/hid-core.c:2066\n hid_irq_in+0x459/0x690 drivers/hid/usbhid/hid-core.c:284\n __usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1671\n dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988\n call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474\n expire_timers kernel/time/timer.c:1519 [inline]\n __run_timers+0x76a/0x980 kernel/time/timer.c:1790\n run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803\n __do_softirq+0x277/0x75b kernel/softirq.c:571\n __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650\n irq_exit_rcu+0x5/0x20 kernel/softirq.c:662\n sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1107\n======================================================================\n\nIf the size of the integer (unsigned n) is bigger than 32 in snto32(),\nshift exponent will be too large for 32-bit type \u0027int\u0027, resulting in a\nshift-out-of-bounds bug.\nFix this by adding a check on the size of the integer (unsigned n) in\nsnto32(). To add support for n greater than 32 bits, set n to 32, if n\nis greater than 32.",
  "id": "GHSA-qr7m-wmg3-5x2f",
  "modified": "2024-10-25T21:31:27Z",
  "published": "2024-10-21T21:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/151493fe5a6ed1a88decc929a7368a3f2a246914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b3b4d7aadaa1b6b58d0f34823bf86cfe8a31b4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/809783f8b4b600c7fb3bccb10fefef822601ea3b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e14f20e12224ee2429f75a5c9418a700e26a8d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc03f809da78fc79e4aee132d4e5c6a2b3aeec73"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db1ed1b3fb4ec0d19080a102956255769bc45c79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec61b41918587be530398b0d1c9a0d16619397e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f755d11c55b29049b77da5cd9ab2faae96eb33c3"
    }
  ],
  "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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