{"cve":"CVE-2023-53148","nvd":{"published":"2025-09-15T14:15:37.270","modified":"2026-06-17T06:44:23.367","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Fix igb_down hung on surprise removal\n\nIn a setup where a Thunderbolt hub connects to Ethernet and a display\nthrough USB Type-C, users may experience a hung task timeout when they\nremove the cable between the PC and the Thunderbolt hub.\nThis is because the igb_down function is called multiple times when\nthe Thunderbolt hub is unplugged. For example, the igb_io_error_detected\ntriggers the first call, and the igb_remove triggers the second call.\nThe second call to igb_down will block at napi_synchronize.\nHere's the call trace:\n    __schedule+0x3b0/0xddb\n    ? __mod_timer+0x164/0x5d3\n    schedule+0x44/0xa8\n    schedule_timeout+0xb2/0x2a4\n    ? run_local_timers+0x4e/0x4e\n    msleep+0x31/0x38\n    igb_down+0x12c/0x22a [igb 6615058754948bfde0bf01429257eb59f13030d4]\n    __igb_close+0x6f/0x9c [igb 6615058754948bfde0bf01429257eb59f13030d4]\n    igb_close+0x23/0x2b [igb 6615058754948bfde0bf01429257eb59f13030d4]\n    __dev_close_many+0x95/0xec\n    dev_close_many+0x6e/0x103\n    unregister_netdevice_many+0x105/0x5b1\n    unregister_netdevice_queue+0xc2/0x10d\n    unregister_netdev+0x1c/0x23\n    igb_remove+0xa7/0x11c [igb 6615058754948bfde0bf01429257eb59f13030d4]\n    pci_device_remove+0x3f/0x9c\n    device_release_driver_internal+0xfe/0x1b4\n    pci_stop_bus_device+0x5b/0x7f\n    pci_stop_bus_device+0x30/0x7f\n    pci_stop_bus_device+0x30/0x7f\n    pci_stop_and_remove_bus_device+0x12/0x19\n    pciehp_unconfigure_device+0x76/0xe9\n    pciehp_disable_slot+0x6e/0x131\n    pciehp_handle_presence_or_link_change+0x7a/0x3f7\n    pciehp_ist+0xbe/0x194\n    irq_thread_fn+0x22/0x4d\n    ? irq_thread+0x1fd/0x1fd\n    irq_thread+0x17b/0x1fd\n    ? irq_forced_thread_fn+0x5f/0x5f\n    kthread+0x142/0x153\n    ? __irq_get_irqchip_state+0x46/0x46\n    ? kthread_associate_blkcg+0x71/0x71\n    ret_from_fork+0x1f/0x30\n\nIn this case, igb_io_error_detected detaches the network interface\nand requests a PCIE slot reset, however, the PCIE reset callback is\nnot being invoked and thus the Ethernet connection breaks down.\nAs the PCIE error in this case is a non-fatal one, requesting a\nslot reset can be avoided.\nThis patch fixes the task hung issue and preserves Ethernet\nconnection by ignoring non-fatal PCIE errors.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-415"],"references":["https://git.kernel.org/stable/c/004d25060c78fc31f66da0fa439c544dda1ac9d5","https://git.kernel.org/stable/c/124e39a734cb90658b8f0dc110847bbfc6e33792","https://git.kernel.org/stable/c/39695e87d86f0e7d897fba1d2559f825aa20caeb","https://git.kernel.org/stable/c/41f63b72a01c0e0ac59ab83fd2d921fcce0f602d","https://git.kernel.org/stable/c/994c2ceb70ea99264ccc6f09e6703ca267dad63c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2023-53148","score":0.00169,"percentile":0.06235,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}