{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-53548",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-53548"
  ],
  "published": "2025-10-04T15:17:41Z",
  "summary": "net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb\n\nThe syzbot fuzzer identified a problem in the usbnet driver:\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 754 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 754 Comm: kworker/0:2 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023\nWorkqueue: mld mld_ifc_work\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\nCode: 7c 24 18 e8 2c b4 5b fb 48 8b 7c 24 18 e8 42 07 f0 fe 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 a0 c9 fc 8a e8 5a 6f 23 fb <0f> 0b e9 58 f8 ff ff e8 fe b3 5b fb 48 81 c5 c0 05 00 00 e9 84 f7\nRSP: 0018:ffffc9000463f568 EFLAGS: 00010086\nRAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000\nRDX: ffff88801eb28000 RSI: ffffffff814c03b7 RDI: 0000000000000001\nRBP: ffff8881443b7190 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000003\nR13: ffff88802a77cb18 R14: 0000000000000003 R15: ffff888018262500\nFS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000556a99c15a18 CR3: 0000000028c71000 CR4: 0000000000350ef0\nCall Trace:\n <TASK>\n usbnet_start_xmit+0xfe5/0x2190 drivers/net/usb/usbnet.c:1453\n __netdev_start_xmit include/linux/netdevice.h:4918 [inline]\n netdev_start_xmit include/linux/netdevice.h:4932 [inline]\n xmit_one net/core/dev.c:3578 [inline]\n dev_hard_start_xmit+0x187/0x700 net/core/dev.c:3594\n...\n\nThis bug is caused by the fact that usbnet trusts the bulk endpoint\naddresses its probe routine receives in the driver_info structure, and\nit does not check to see that these endpoints actually exist and have\nthe expected type and directions.\n\nThe fix is simply to add such a check.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.21-1+rpt1": {
            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.45"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53548"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a0715d04cf687a7e21f0d6ac8c1d479294a3f6f8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/53c250ea57cf03af41339234b9855ae284f9db91"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a05ac5d00eb7fcb2fda806caa4f56e88df6bc6bb"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ec0d0be41721aca683c5606354a58ee2c687e3f8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/27d0f755d649d388fcd12f01436c9a33289e14e3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1bebbd9b8037a9cc75984317cb495dec4824c399"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0dd3e0c31bf3e933fb85faf1443833aef90b8e46"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5e1627cb43ddf1b24b92eb26f8d958a3f5676ccb"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}