CVE-2021-47582

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If timeout value is very large and the\ndevice being accessed does not respond in a reasonable amount of time,\nthe kernel will complain about \"Task X blocked for more than N\nseconds\", as found in testing by syzbot:\n\nINFO: task syz-executor.0:8700 blocked for more than 143 seconds.\n Not tainted 5.14.0-rc7-syzkaller #0\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:syz-executor.0 state:D stack:23192 pid: 8700 ppid: 8455 flags:0x00004004\nCall Trace:\n context_switch kernel/sched/core.c:4681 [inline]\n __schedule+0xc07/0x11f0 kernel/sched/core.c:5938\n schedule+0x14b/0x210 kernel/sched/core.c:6017\n schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857\n do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85\n __wait_for_common kernel/sched/completion.c:106 [inline]\n wait_for_common kernel/sched/completion.c:117 [inline]\n wait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157\n usb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63\n do_proc_bulk+0x978/0x1080 drivers/usb/core/devio.c:1236\n proc_bulk drivers/usb/core/devio.c:1273 [inline]\n usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]\n usbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713\n...\n\nTo fix this problem, this patch replaces usbfs's calls to\nusb_control_msg() and usb_bulk_msg() with special-purpose code that\ndoes essentially the same thing (as recommended in the comment for\nusb_start_wait_urb()), except that it always uses a killable wait and\nit uses GFP_KERNEL rather than GFP_NOIO."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/core/devio.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "403716741c6c2c510dce44e88f085a740f535de6", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ae8709b296d80c7f45aa1f35c0e7659ad69edce1", "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/devio.c"], "versions": [{"version": "2.6.12", "status": "affected"}, {"version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.11", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16", "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": "2.6.12", "versionEndExcluding": "5.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6"}, {"url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1"}], "title": "USB: core: Make do_proc_control() and do_proc_bulk() killable", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.853Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47582", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:12:46.485815Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:52.813Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.853Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47582", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T17:12:46.485815Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:26.518Z"}}], "cna": {"title": "USB: core: Make do_proc_control() and do_proc_bulk() killable", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "403716741c6c2c510dce44e88f085a740f535de6", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ae8709b296d80c7f45aa1f35c0e7659ad69edce1", "versionType": "git"}], "programFiles": ["drivers/usb/core/devio.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "unaffected", "version": "5.15.11", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/core/devio.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6"}, {"url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Make do_proc_control() and do_proc_bulk() killable\n\nThe USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke\nusb_start_wait_urb(), which contains an uninterruptible wait with a\nuser-specified timeout value. If timeout value is very large and the\ndevice being accessed does not respond in a reasonable amount of time,\nthe kernel will complain about \"Task X blocked for more than N\nseconds\", as found in testing by syzbot:\n\nINFO: task syz-executor.0:8700 blocked for more than 143 seconds.\n Not tainted 5.14.0-rc7-syzkaller #0\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:syz-executor.0 state:D stack:23192 pid: 8700 ppid: 8455 flags:0x00004004\nCall Trace:\n context_switch kernel/sched/core.c:4681 [inline]\n __schedule+0xc07/0x11f0 kernel/sched/core.c:5938\n schedule+0x14b/0x210 kernel/sched/core.c:6017\n schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857\n do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85\n __wait_for_common kernel/sched/completion.c:106 [inline]\n wait_for_common kernel/sched/completion.c:117 [inline]\n wait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157\n usb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63\n do_proc_bulk+0x978/0x1080 drivers/usb/core/devio.c:1236\n proc_bulk drivers/usb/core/devio.c:1273 [inline]\n usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]\n usbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713\n...\n\nTo fix this problem, this patch replaces usbfs's calls to\nusb_control_msg() and usb_bulk_msg() with special-purpose code that\ndoes essentially the same thing (as recommended in the comment for\nusb_start_wait_urb()), except that it always uses a killable wait and\nit uses GFP_KERNEL rather than GFP_NOIO."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-10T07:12:36.215Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47582", "state": "PUBLISHED", "dateUpdated": "2025-12-10T07:12:36.215Z", "dateReserved": "2024-05-24T15:11:00.730Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-19T14:53:48.788Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/core/devio.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "403716741c6c2c510dce44e88f085a740f535de6", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "ae8709b296d80c7f45aa1f35c0e7659ad69edce1", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/core/devio.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.12"}, {"lessThan": "2.6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B271E1AF-BC45-4C3E-9614-055846520592", "versionEndExcluding": "5.15.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Make do_proc_control() and do_proc_bulk() killable\n\nThe USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke\nusb_start_wait_urb(), which contains an uninterruptible wait with a\nuser-specified timeout value. If timeout value is very large and the\ndevice being accessed does not respond in a reasonable amount of time,\nthe kernel will complain about \"Task X blocked for more than N\nseconds\", as found in testing by syzbot:\n\nINFO: task syz-executor.0:8700 blocked for more than 143 seconds.\n Not tainted 5.14.0-rc7-syzkaller #0\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:syz-executor.0 state:D stack:23192 pid: 8700 ppid: 8455 flags:0x00004004\nCall Trace:\n context_switch kernel/sched/core.c:4681 [inline]\n __schedule+0xc07/0x11f0 kernel/sched/core.c:5938\n schedule+0x14b/0x210 kernel/sched/core.c:6017\n schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857\n do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85\n __wait_for_common kernel/sched/completion.c:106 [inline]\n wait_for_common kernel/sched/completion.c:117 [inline]\n wait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157\n usb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63\n do_proc_bulk+0x978/0x1080 drivers/usb/core/devio.c:1236\n proc_bulk drivers/usb/core/devio.c:1273 [inline]\n usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]\n usbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713\n...\n\nTo fix this problem, this patch replaces usbfs's calls to\nusb_control_msg() and usb_bulk_msg() with special-purpose code that\ndoes essentially the same thing (as recommended in the comment for\nusb_start_wait_urb()), except that it always uses a killable wait and\nit uses GFP_KERNEL rather than GFP_NOIO."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: USB: core: Hacer que do_proc_control() y do_proc_bulk() se puedan eliminar. Los ioctls USBDEVFS_CONTROL y USBDEVFS_BULK invocan usb_start_wait_urb(), que contiene una espera ininterrumpida con un valor de tiempo de espera especificado por el usuario. Si el valor del tiempo de espera es muy grande y el dispositivo al que se accede no responde en un per\u00edodo de tiempo razonable, el kernel se quejar\u00e1 de \"Tarea X bloqueada durante m\u00e1s de N segundos\", como se encontr\u00f3 en las pruebas realizadas por syzbot: INFORMACI\u00d3N: tarea syz-executor .0:8700 bloqueado durante m\u00e1s de 143 segundos. Not tainted 5.14.0-rc7-syzkaller #0 \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" desactiva este mensaje. tarea:syz-executor.0 estado:D pila:23192 pid: 8700 ppid: 8455 banderas:0x00004004 Seguimiento de llamadas: context_switch kernel/sched/core.c:4681 [en l\u00ednea] __schedule+0xc07/0x11f0 kernel/sched/core.c :5938 programaci\u00f3n+0x14b/0x210 kernel/sched/core.c:6017 Schedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857 do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion .c:106 [en l\u00ednea] wait_for_common kernel/sched/completion.c:117 [en l\u00ednea] wait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157 usb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63 do_proc_bulk+0x978/0x1080 controladores/usb/core/devio.c:1236 controladores proc_bulk/usb/core/devio.c:1273 [en l\u00ednea] usbdev_do_ioctl controladores/usb/core/devio.c:2547 [en l\u00ednea] usbdev_ioctl+0x3441/ 0x6b10 drivers/usb/core/devio.c:2713 ... Para solucionar este problema, este parche reemplaza las llamadas de usbfs a usb_control_msg() y usb_bulk_msg() con c\u00f3digo de prop\u00f3sito especial que hace esencialmente lo mismo (como se recomienda en el comentario para usb_start_wait_urb()), excepto que siempre usa una espera eliminable y usa GFP_KERNEL en lugar de GFP_NOIO."}], "id": "CVE-2021-47582", "lastModified": "2026-06-17T04:17:48.627", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47582", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T17:12:46.485815Z", "version": "2.0.3"}}]}, "published": "2024-06-19T15:15:52.743", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/403716741c6c2c510dce44e88f085a740f535de6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae8709b296d80c7f45aa1f35c0e7659ad69edce1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:7001", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.22.1.rt7.363.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:7000", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.22.1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-09-24T00:00:00Z"}], "bugzilla": {"description": "kernel: USB: core: Make do_proc_control() and do_proc_bulk() killable", "id": "2293247", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293247"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "verified"}, "cwe": "CWE-667", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nUSB: core: Make do_proc_control() and do_proc_bulk() killable\nThe USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke\nusb_start_wait_urb(), which contains an uninterruptible wait with a\nuser-specified timeout value. If timeout value is very large and the\ndevice being accessed does not respond in a reasonable amount of time,\nthe kernel will complain about \"Task X blocked for more than N\nseconds\", as found in testing by syzbot:\nINFO: task syz-executor.0:8700 blocked for more than 143 seconds.\nNot tainted 5.14.0-rc7-syzkaller #0\n\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\ntask:syz-executor.0 state:D stack:23192 pid: 8700 ppid: 8455 flags:0x00004004\nCall Trace:\ncontext_switch kernel/sched/core.c:4681 [inline]\n__schedule+0xc07/0x11f0 kernel/sched/core.c:5938\nschedule+0x14b/0x210 kernel/sched/core.c:6017\nschedule_timeout+0x98/0x2f0 kernel/time/timer.c:1857\ndo_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85\n__wait_for_common kernel/sched/completion.c:106 [inline]\nwait_for_common kernel/sched/completion.c:117 [inline]\nwait_for_completion_timeout+0x46/0x60 kernel/sched/completion.c:157\nusb_start_wait_urb+0x167/0x550 drivers/usb/core/message.c:63\ndo_proc_bulk+0x978/0x1080 drivers/usb/core/devio.c:1236\nproc_bulk drivers/usb/core/devio.c:1273 [inline]\nusbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]\nusbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713\n...\nTo fix this problem, this patch replaces usbfs's calls to\nusb_control_msg() and usb_bulk_msg() with special-purpose code that\ndoes essentially the same thing (as recommended in the comment for\nusb_start_wait_urb()), except that it always uses a killable wait and\nit uses GFP_KERNEL rather than GFP_NOIO."], "name": "CVE-2021-47582", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47582\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47582\nhttps://lore.kernel.org/linux-cve-announce/2024061916-CVE-2021-47582-69aa@gregkh/T"], "threat_severity": "Low"}

{}