{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49936", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.255Z", "datePublished": "2025-06-18T10:54:37.889Z", "dateUpdated": "2026-05-11T19:09:33.668Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:09:33.668Z" }, "descriptions": [ { "lang": "en", "value": "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": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/core/hub.c", "include/linux/usb.h" ], "versions": [ { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "d90419b8b8322b6924f6da9da952647f2dadc21b", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "1b29498669914c7f9afb619722421418a753d372", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "cc9a12e12808af178c600cc485338bac2e37d2a8", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "df1875084898b15cbc42f712e93d7f113ae6271b", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "abe3cfb7a7c8e907b312c7dbd7bf4d142b745aa8", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "c548b99e1c37db6f7df86ecfe9a1f895d6c5966e", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "d5eb850b3e8836197a38475840725260b9783e94", "status": "affected", "versionType": "git" }, { "version": "78d9a487ee961c356e1a934d9a92eca38ffb3a70", "lessThan": "9c6d778800b921bde3bff3cff5003d1650f942d1", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/core/hub.c", "include/linux/usb.h" ], "versions": [ { "version": "2.6.27", "status": "affected" }, { "version": "0", "lessThan": "2.6.27", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.328", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.293", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.258", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.213", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.142", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.66", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19.8", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "4.9.328" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "4.14.293" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "4.19.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.4.213" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.10.142" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.15.66" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "5.19.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.27", "versionEndExcluding": "6.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d90419b8b8322b6924f6da9da952647f2dadc21b" }, { "url": "https://git.kernel.org/stable/c/1b29498669914c7f9afb619722421418a753d372" }, { "url": "https://git.kernel.org/stable/c/cc9a12e12808af178c600cc485338bac2e37d2a8" }, { "url": "https://git.kernel.org/stable/c/df1875084898b15cbc42f712e93d7f113ae6271b" }, { "url": "https://git.kernel.org/stable/c/abe3cfb7a7c8e907b312c7dbd7bf4d142b745aa8" }, { "url": "https://git.kernel.org/stable/c/c548b99e1c37db6f7df86ecfe9a1f895d6c5966e" }, { "url": "https://git.kernel.org/stable/c/d5eb850b3e8836197a38475840725260b9783e94" }, { "url": "https://git.kernel.org/stable/c/9c6d778800b921bde3bff3cff5003d1650f942d1" } ], "title": "USB: core: Prevent nested device-reset calls", "x_generator": { "engine": "bippy-1.2.0" } } } }