{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-21776", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21776", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-02-27T02:18:21.503Z", "updatedAt": "2026-10-15T01:04:18.924Z", "importedAt": "2026-10-24T01:57:29.455Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "USB: hub: Ignore non-compliant devices with too many configs or interfaces", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: hub: Ignore non-compliant devices with too many configs or interfaces\n\nRobert Morris created a test program which can cause\nusb_hub_to_struct_hub() to dereference a NULL or inappropriate\npointer:\n\nOops: general protection fault, probably for non-canonical address\n0xcccccccccccccccc: 0000 [#1] SMP DEBUG_PAGEALLOC PTI\nCPU: 7 UID: 0 PID: 117 Comm: kworker/7:1 Not tainted 6.13.0-rc3-00017-gf44d154d6e3d #14\nHardware name: FreeBSD BHYVE/BHYVE, BIOS 14.0 10/17/2021\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:usb_hub_adjust_deviceremovable+0x78/0x110\n...\nCall Trace:\n \n ? die_addr+0x31/0x80\n ? exc_general_protection+0x1b4/0x3c0\n ? asm_exc_general_protection+0x26/0x30\n ? usb_hub_adjust_deviceremovable+0x78/0x110\n hub_probe+0x7c7/0xab0\n usb_probe_interface+0x14b/0x350\n really_probe+0xd0/0x2d0\n ? __pfx___device_attach_driver+0x10/0x10\n __driver_probe_device+0x6e/0x110\n driver_probe_device+0x1a/0x90\n __device_attach_driver+0x7e/0xc0\n bus_for_each_drv+0x7f/0xd0\n __device_attach+0xaa/0x1a0\n bus_probe_device+0x8b/0xa0\n device_add+0x62e/0x810\n usb_set_configuration+0x65d/0x990\n usb_generic_driver_probe+0x4b/0x70\n usb_probe_device+0x36/0xd0\n\nThe cause of this error is that the device has two interfaces, and the\nhub driver binds to interface 1 instead of interface 0, which is where\nusb_hub_to_struct_hub() looks.\n\nWe can prevent the problem from occurring by refusing to accept hub\ndevices that violate the USB spec by having more than one\nconfiguration or interface.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "49f077106fa07919a6a6dda99bb490dd1d1a8218" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "d343fe0fad5c1d689775f2dda24a85ce98e29566" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "d3a67adb365cdfdac4620daf38a82e57ca45806c" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "c3720b04df84b5459050ae4e03ec7d545652f897" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "e905a0fca7bff0855d312c16f71e60e1773b393e" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "62d8f4c5454dd39aded4f343720d1c5a1803cfef" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "5b9778e1fe715700993ce436c152dc3b7df0b490" }, { "version": "d2123fd9e1a56b8006986ed37e0aaf93ef0dd978", "status": "affected", "versionType": "git", "lessThan": "2240fed37afbcdb5e8b627bc7ad986891100e05d" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.9", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.9" }, { "version": "5.4.291", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.235", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.179", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.129", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.79", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.13.*" }, { "version": "6.14", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }