cve-2021-47569
Vulnerability from cvelistv5
Published
2024-05-24 15:12
Modified
2024-09-11 17:32
Severity
Summary
io_uring: fail cancellation for EXITING tasks
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3d2a1e68fd9904fdc1b02f2e7d40ca47df7ba39f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/617a89484debcd4e7999796d693cf0b77d2519de
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47569\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:22.203\",\"lastModified\":\"2024-05-24T18:09:20.027\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nio_uring: fail cancellation for EXITING tasks\\n\\nWARNING: CPU: 1 PID: 20 at fs/io_uring.c:6269 io_try_cancel_userdata+0x3c5/0x640 fs/io_uring.c:6269\\nCPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.16.0-rc1-syzkaller #0\\nWorkqueue: events io_fallback_req_func\\nRIP: 0010:io_try_cancel_userdata+0x3c5/0x640 fs/io_uring.c:6269\\nCall Trace:\\n \u003cTASK\u003e\\n io_req_task_link_timeout+0x6b/0x1e0 fs/io_uring.c:6886\\n io_fallback_req_func+0xf9/0x1ae fs/io_uring.c:1334\\n process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298\\n worker_thread+0x658/0x11f0 kernel/workqueue.c:2445\\n kthread+0x405/0x4f0 kernel/kthread.c:327\\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295\\n \u003c/TASK\u003e\\n\\nWe need original task\u0027s context to do cancellations, so if it\u0027s dying\\nand the callback is executed in a fallback mode, fail the cancellation\\nattempt.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: cancelaci\u00f3n fallida para tareas SALIDAS ADVERTENCIA: CPU: 1 PID: 20 en fs/io_uring.c:6269 io_try_cancel_userdata+0x3c5/0x640 fs/io_uring.c:6269 CPU: 1 PID: 20 Comm: kworker/1:0 No contaminado 5.16.0-rc1-syzkaller #0 Cola de trabajo: eventos io_fallback_req_func RIP: 0010:io_try_cancel_userdata+0x3c5/0x640 fs/io_uring.c:6269 Seguimiento de llamadas:  io_req_task_link_timeout+0x6b /0x1e0 fs/io_uring.c:6886 io_fallback_req_func+0xf9/0x1ae fs/io_uring.c:1334 Process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 trabajador_thread+0x658/0x11f0 kernel/workqueue.c:2445 kthread+0x405/0 x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295  Necesitamos el contexto de la tarea original para realizar cancelaciones, por lo que si est\u00e1 muriendo y la devoluci\u00f3n de llamada se ejecuta en modo alternativo, fallar el intento de cancelaci\u00f3n.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3d2a1e68fd9904fdc1b02f2e7d40ca47df7ba39f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/617a89484debcd4e7999796d693cf0b77d2519de\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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