CVE-2025-21877 (GCVE-0-2025-21877)
Vulnerability from cvelistv5
Published
2025-03-27 14:57
Modified
2025-05-04 07:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usbnet: gl620a: fix endpoint checking in genelink_bind() Syzbot reports [1] a warning in usb_submit_urb() triggered by inconsistencies between expected and actually present endpoints in gl620a driver. Since genelink_bind() does not properly verify whether specified eps are in fact provided by the device, in this case, an artificially manufactured one, one may get a mismatch. Fix the issue by resorting to a usbnet utility function usbnet_get_endpoints(), usually reserved for this very problem. Check for endpoints and return early before proceeding further if any are missing. [1] Syzbot report: usb 5-1: Manufacturer: syz usb 5-1: SerialNumber: syz usb 5-1: config 0 descriptor?? gl620a 5-1:0.23 usb0: register 'gl620a' at usb-dummy_hcd.0-1, ... ------------[ cut here ]------------ usb 5-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 2 PID: 1841 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503 Modules linked in: CPU: 2 UID: 0 PID: 1841 Comm: kworker/2:2 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: mld mld_ifc_work RIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503 ... Call Trace: <TASK> usbnet_start_xmit+0x6be/0x2780 drivers/net/usb/usbnet.c:1467 __netdev_start_xmit include/linux/netdevice.h:5002 [inline] netdev_start_xmit include/linux/netdevice.h:5011 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3606 sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3827 [inline] __dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4400 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_resolve_output net/core/neighbour.c:1514 [inline] neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494 neigh_output include/net/neighbour.h:539 [inline] ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141 __ip6_finish_output net/ipv6/ip6_output.c:215 [inline] ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] NF_HOOK include/linux/netfilter.h:308 [inline] mld_sendpack+0x9f0/0x11d0 net/ipv6/mcast.c:1819 mld_send_cr net/ipv6/mcast.c:2120 [inline] mld_ifc_work+0x740/0xca0 net/ipv6/mcast.c:2651 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK>
References
Impacted products
Vendor Product Version
Linux Linux Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
Version: 47ee3051c856cc2aa95d35d577a8cb37279d540f
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{
  "containers": {
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          "programFiles": [
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      "cpeApplicability": [
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: gl620a: fix endpoint checking in genelink_bind()\n\nSyzbot reports [1] a warning in usb_submit_urb() triggered by\ninconsistencies between expected and actually present endpoints\nin gl620a driver. Since genelink_bind() does not properly\nverify whether specified eps are in fact provided by the device,\nin this case, an artificially manufactured one, one may get a\nmismatch.\n\nFix the issue by resorting to a usbnet utility function\nusbnet_get_endpoints(), usually reserved for this very problem.\nCheck for endpoints and return early before proceeding further if\nany are missing.\n\n[1] Syzbot report:\nusb 5-1: Manufacturer: syz\nusb 5-1: SerialNumber: syz\nusb 5-1: config 0 descriptor??\ngl620a 5-1:0.23 usb0: register \u0027gl620a\u0027 at usb-dummy_hcd.0-1, ...\n------------[ cut here ]------------\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 2 PID: 1841 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503\nModules linked in:\nCPU: 2 UID: 0 PID: 1841 Comm: kworker/2:2 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nWorkqueue: mld mld_ifc_work\nRIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503\n...\nCall Trace:\n \u003cTASK\u003e\n usbnet_start_xmit+0x6be/0x2780 drivers/net/usb/usbnet.c:1467\n __netdev_start_xmit include/linux/netdevice.h:5002 [inline]\n netdev_start_xmit include/linux/netdevice.h:5011 [inline]\n xmit_one net/core/dev.c:3590 [inline]\n dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3606\n sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343\n __dev_xmit_skb net/core/dev.c:3827 [inline]\n __dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4400\n dev_queue_xmit include/linux/netdevice.h:3168 [inline]\n neigh_resolve_output net/core/neighbour.c:1514 [inline]\n neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494\n neigh_output include/net/neighbour.h:539 [inline]\n ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141\n __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]\n ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226\n NF_HOOK_COND include/linux/netfilter.h:303 [inline]\n ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247\n dst_output include/net/dst.h:450 [inline]\n NF_HOOK include/linux/netfilter.h:314 [inline]\n NF_HOOK include/linux/netfilter.h:308 [inline]\n mld_sendpack+0x9f0/0x11d0 net/ipv6/mcast.c:1819\n mld_send_cr net/ipv6/mcast.c:2120 [inline]\n mld_ifc_work+0x740/0xca0 net/ipv6/mcast.c:2651\n process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229\n process_scheduled_works kernel/workqueue.c:3310 [inline]\n worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:23:09.089Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5f2dbabbce04b1ffcd6d8d07564adb94db577536"
        },
        {
          "url": "https://git.kernel.org/stable/c/24dd971104057c8828d420a48e0a5af6e6f30d3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9bcb8cbc3e5d67eb223bfb7e2291a270dbb699dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/67ebc3391c8377738e97a43374054d9718fdb6e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2ee5e55b50a97d13617c8653482c0ad4decff8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e8b8d43373bf837be159366f0192502f97ec7a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ded25730c96949cb8b048b29c557e38569124943"
        },
        {
          "url": "https://git.kernel.org/stable/c/1cf9631d836b289bd5490776551961c883ae8a4f"
        }
      ],
      "title": "usbnet: gl620a: fix endpoint checking in genelink_bind()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21877",
    "datePublished": "2025-03-27T14:57:07.462Z",
    "dateReserved": "2024-12-29T08:45:45.781Z",
    "dateUpdated": "2025-05-04T07:23:09.089Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21877\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-27T15:15:55.540\",\"lastModified\":\"2025-03-27T16:45:12.210\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusbnet: gl620a: fix endpoint checking in genelink_bind()\\n\\nSyzbot reports [1] a warning in usb_submit_urb() triggered by\\ninconsistencies between expected and actually present endpoints\\nin gl620a driver. Since genelink_bind() does not properly\\nverify whether specified eps are in fact provided by the device,\\nin this case, an artificially manufactured one, one may get a\\nmismatch.\\n\\nFix the issue by resorting to a usbnet utility function\\nusbnet_get_endpoints(), usually reserved for this very problem.\\nCheck for endpoints and return early before proceeding further if\\nany are missing.\\n\\n[1] Syzbot report:\\nusb 5-1: Manufacturer: syz\\nusb 5-1: SerialNumber: syz\\nusb 5-1: config 0 descriptor??\\ngl620a 5-1:0.23 usb0: register \u0027gl620a\u0027 at usb-dummy_hcd.0-1, ...\\n------------[ cut here ]------------\\nusb 5-1: BOGUS urb xfer, pipe 3 != type 1\\nWARNING: CPU: 2 PID: 1841 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503\\nModules linked in:\\nCPU: 2 UID: 0 PID: 1841 Comm: kworker/2:2 Not tainted 6.12.0-syzkaller-07834-g06afb0f36106 #0\\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\\nWorkqueue: mld mld_ifc_work\\nRIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503\\n...\\nCall Trace:\\n \u003cTASK\u003e\\n usbnet_start_xmit+0x6be/0x2780 drivers/net/usb/usbnet.c:1467\\n __netdev_start_xmit include/linux/netdevice.h:5002 [inline]\\n netdev_start_xmit include/linux/netdevice.h:5011 [inline]\\n xmit_one net/core/dev.c:3590 [inline]\\n dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3606\\n sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343\\n __dev_xmit_skb net/core/dev.c:3827 [inline]\\n __dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4400\\n dev_queue_xmit include/linux/netdevice.h:3168 [inline]\\n neigh_resolve_output net/core/neighbour.c:1514 [inline]\\n neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494\\n neigh_output include/net/neighbour.h:539 [inline]\\n ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141\\n __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]\\n ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226\\n NF_HOOK_COND include/linux/netfilter.h:303 [inline]\\n ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247\\n dst_output include/net/dst.h:450 [inline]\\n NF_HOOK include/linux/netfilter.h:314 [inline]\\n NF_HOOK include/linux/netfilter.h:308 [inline]\\n mld_sendpack+0x9f0/0x11d0 net/ipv6/mcast.c:1819\\n mld_send_cr net/ipv6/mcast.c:2120 [inline]\\n mld_ifc_work+0x740/0xca0 net/ipv6/mcast.c:2651\\n process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229\\n process_scheduled_works kernel/workqueue.c:3310 [inline]\\n worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391\\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\\n \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usbnet: gl620a: correcci\u00f3n de la comprobaci\u00f3n de endpoints en genelink_bind(). Syzbot informa [1] de una advertencia en usb_submit_urb() provocada por inconsistencias entre los endpoints esperados y los realmente presentes en el controlador gl620a. Dado que genelink_bind() no verifica correctamente si el dispositivo proporciona los eps especificados (en este caso, uno fabricado artificialmente), es posible que se produzca una discrepancia. Solucione el problema recurriendo a la funci\u00f3n de utilidad usbnet, usbnet_get_endpoints(), normalmente reservada para este problema. Compruebe los endpoints y vuelva antes de continuar si falta alguno. [1] Informe de Syzbot: usb 5-1: Fabricante: syz usb 5-1: N\u00famero de serie: syz usb 5-1: \u00bfdescriptor de configuraci\u00f3n 0? gl620a 5-1:0.23 usb0: registro \u0027gl620a\u0027 en usb-dummy_hcd.0-1, ... ------------[ cortar aqu\u00ed ]------------ usb 5-1: transferencia urb FALSA, tuber\u00eda 3 != tipo 1 ADVERTENCIA: CPU: 2 PID: 1841 en drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503 M\u00f3dulos vinculados: CPU: 2 UID: 0 PID: 1841 Comm: kworker/2:2 No contaminado 6.12.0-syzkaller-07834-g06afb0f36106 #0 Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 01/04/2014 Cola de trabajo: mld mld_ifc_work RIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503 ... Rastreo de llamadas:   usbnet_start_xmit+0x6be/0x2780 drivers/net/usb/usbnet.c:1467 __netdev_start_xmit include/linux/netdevice.h:5002 [inline] netdev_start_xmit include/linux/netdevice.h:5011 [inline] xmit_one net/core/dev.c:3590 [inline] dev_hard_start_xmit+0x9a/0x7b0 net/core/dev.c:3606 sch_direct_xmit+0x1ae/0xc30 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3827 [inline] __dev_queue_xmit+0x13d4/0x43e0 net/core/dev.c:4400 dev_queue_xmit include/linux/netdevice.h:3168 [inline] neigh_resolve_output net/core/neighbour.c:1514 [inline] neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494 neigh_output include/net/neighbour.h:539 [inline] ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141 __ip6_finish_output net/ipv6/ip6_output.c:215 [inline] ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226 NF_HOOK_COND include/linux/netfilter.h:303 [inline] ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] NF_HOOK include/linux/netfilter.h:308 [inline] mld_sendpack+0x9f0/0x11d0 net/ipv6/mcast.c:1819 mld_send_cr net/ipv6/mcast.c:2120 [inline] mld_ifc_work+0x740/0xca0 net/ipv6/mcast.c:2651 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244  \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1cf9631d836b289bd5490776551961c883ae8a4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/24dd971104057c8828d420a48e0a5af6e6f30d3e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4e8b8d43373bf837be159366f0192502f97ec7a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f2dbabbce04b1ffcd6d8d07564adb94db577536\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67ebc3391c8377738e97a43374054d9718fdb6e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9bcb8cbc3e5d67eb223bfb7e2291a270dbb699dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a2ee5e55b50a97d13617c8653482c0ad4decff8c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ded25730c96949cb8b048b29c557e38569124943\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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