{ "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-2022-49936", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49936", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-06-18T10:54:37.889Z", "updatedAt": "2026-05-11T19:09:33.668Z", "importedAt": "2026-10-24T01:56:49.724Z", "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: core: Prevent nested device-reset calls", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Prevent nested device-reset calls\n\nAutomatic kernel fuzzing revealed a recursive locking violation in\nusb-storage:\n\n============================================\nWARNING: possible recursive locking detected\n5.18.0 #3 Not tainted\n--------------------------------------------\nkworker/1:3/1205 is trying to acquire lock:\nffff888018638db8 (&us_interface_key[i]){+.+.}-{3:3}, at:\nusb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230\n\nbut task is already holding lock:\nffff888018638db8 (&us_interface_key[i]){+.+.}-{3:3}, at:\nusb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230\n\n...\n\nstack backtrace:\nCPU: 1 PID: 1205 Comm: kworker/1:3 Not tainted 5.18.0 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nWorkqueue: usb_hub_wq hub_event\nCall Trace:\n\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\nprint_deadlock_bug kernel/locking/lockdep.c:2988 [inline]\ncheck_deadlock kernel/locking/lockdep.c:3031 [inline]\nvalidate_chain kernel/locking/lockdep.c:3816 [inline]\n__lock_acquire.cold+0x152/0x3ca kernel/locking/lockdep.c:5053\nlock_acquire kernel/locking/lockdep.c:5665 [inline]\nlock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5630\n__mutex_lock_common kernel/locking/mutex.c:603 [inline]\n__mutex_lock+0x14f/0x1610 kernel/locking/mutex.c:747\nusb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230\nusb_reset_device+0x37d/0x9a0 drivers/usb/core/hub.c:6109\nr871xu_dev_remove+0x21a/0x270 drivers/staging/rtl8712/usb_intf.c:622\nusb_unbind_interface+0x1bd/0x890 drivers/usb/core/driver.c:458\ndevice_remove drivers/base/dd.c:545 [inline]\ndevice_remove+0x11f/0x170 drivers/base/dd.c:537\n__device_release_driver drivers/base/dd.c:1222 [inline]\ndevice_release_driver_internal+0x1a7/0x2f0 drivers/base/dd.c:1248\nusb_driver_release_interface+0x102/0x180 drivers/usb/core/driver.c:627\nusb_forced_unbind_intf+0x4d/0xa0 drivers/usb/core/driver.c:1118\nusb_reset_device+0x39b/0x9a0 drivers/usb/core/hub.c:6114\n\nThis turned out not to be an error in usb-storage but rather a nested\ndevice reset attempt. That is, as the rtl8712 driver was being\nunbound from a composite device in preparation for an unrelated USB\nreset (that driver does not have pre_reset or post_reset callbacks),\nits ->remove routine called usb_reset_device() -- thus nesting one\nreset call within another.\n\nPerforming a reset as part of disconnect processing is a questionable\npractice at best. However, the bug report points out that the USB\ncore does not have any protection against nested resets. Adding a\nreset_in_progress flag and testing it will prevent such errors in the\nfuture.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "d90419b8b8322b6924f6da9da952647f2dadc21b" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "1b29498669914c7f9afb619722421418a753d372" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "cc9a12e12808af178c600cc485338bac2e37d2a8" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "df1875084898b15cbc42f712e93d7f113ae6271b" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "abe3cfb7a7c8e907b312c7dbd7bf4d142b745aa8" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "c548b99e1c37db6f7df86ecfe9a1f895d6c5966e" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "d5eb850b3e8836197a38475840725260b9783e94" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "status": "affected", "versionType": "git", "lessThan": "9c6d778800b921bde3bff3cff5003d1650f942d1" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.27", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.27" }, { "version": "4.9.328", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.293", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.258", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.213", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.142", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.66", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.8", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }