[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2021-47582":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2021-47582","In the Linux kernel, the following vulnerability has been resolved:  USB: core: Make do_proc_control() and do_proc_bulk() killable  The USBDEVFS_CONTROL and USBDEVFS_BULK ioctls invoke usb_start_wait_urb(), which contains an uninterruptible wait with a user-specified timeout value.  If timeout value is very large and the device being accessed does not respond in a reasonable amount of time, the kernel will complain about \"Task X blocked for more than N seconds\", as found in testing by syzbot:  INFO: task syz-executor.0:8700 blocked for more than 143 seconds.       Not tainted 5.14.0-rc7-syzkaller #0 \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message. task:syz-executor.0  state:D stack:23192 pid: 8700 ppid:  8455 flags:0x00004004 Call Trace:  context_switch kernel/sched/core.c:4681 [inline]  __schedule+0xc07/0x11f0 kernel/sched/core.c:5938  schedule+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 [inline]  wait_for_common kernel/sched/completion.c:117 [inline]  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 drivers/usb/core/devio.c:1236  proc_bulk drivers/usb/core/devio.c:1273 [inline]  usbdev_do_ioctl drivers/usb/core/devio.c:2547 [inline]  usbdev_ioctl+0x3441/0x6b10 drivers/usb/core/devio.c:2713 ...  To fix this problem, this patch replaces usbfs's calls to usb_control_msg() and usb_bulk_msg() with special-purpose code that does essentially the same thing (as recommended in the comment for usb_start_wait_urb()), except that it always uses a killable wait and it uses GFP_KERNEL rather than GFP_NOIO.",null,[],[],[],[14],{"_key":15},"CVE-2021-47582",[],[],[],"2024-06-19T15:15:52.743Z","2026-04-28T20:23:32.911090Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2021-47582",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},5.5,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",6,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,50,54,55],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":51,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":52,"version_end_type":53,"fixed_in":9},"lt5_15_15_1","5.15.15-1","excluding",{"version":51,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":52,"version_end_type":53,"fixed_in":9},{"version":51,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":52,"version_end_type":53,"fixed_in":9}]