CVE-2021-47271 in Linux
摘要
由 VulDB • 2026-06-17
在 Linux 内核中,已修复以下漏洞:
usb: cdnsp: 修复 cdnsp_thread_irq_handler 中的死锁问题
该补丁修复了在测试 NCM 类时检测到的由死锁引起的以下关键问题:
smp: csd: 在 CPU#0 上检测到无响应的 CSD 锁 (#1) smp: csd: CSD 锁 (#1) 无响应。 .... RIP: 0010:native_queued_spin_lock_slowpath+0x61/0x1d0 RSP: 0018:ffffbc494011cde0 EFLAGS: 00000002 RAX: 0000000000000101 RBX: ffff9ee8116b4a68 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9ee8116b4a68 RBP: ffffbc494011cde0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff9ee8116b4a68 R13: ffff9ee8116b4a68 R14: ffff9ee8116b4a68 R15: ffff9ee8116b4a68 _raw_spin_lock+0x3d/0x70 ? cdnsp_thread_irq_handler.cold+0x32/0x112c [cdnsp_udc_pci]
cdnsp_thread_irq_handler.cold+0x32/0x112c [cdnsp_udc_pci]
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