BUG: sleeping function called from invalid context at drivers/usb/core/urb.c:705 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 2846, name: klogd preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 no locks held by klogd/2846. irq event stamp: 400103 hardirqs last enabled at (400102): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (400102): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (400103): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (400103): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (400074): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (400074): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (400074): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (400099): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (400099): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (400099): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [] __schedule_loop kernel/sched/core.c:6992 [inline] [] schedule+0xd6/0x390 kernel/sched/core.c:7008 CPU: 0 UID: 0 PID: 2846 Comm: klogd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 __might_resched.cold+0x1ec/0x232 kernel/sched/core.c:8888 usb_kill_urb+0x8e/0x320 drivers/usb/core/urb.c:705 usb_tx_block+0x91/0x320 drivers/net/wireless/marvell/libertas/if_usb.c:429 if_usb_send_fw_pkt.isra.0+0x2e4/0x550 drivers/net/wireless/marvell/libertas/if_usb.c:366 if_usb_receive_fwload+0x5d3/0x780 drivers/net/wireless/marvell/libertas/if_usb.c:592 __usb_hcd_giveback_urb+0x38d/0x610 drivers/usb/core/hcd.c:1657 usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741 dummy_timer+0xda1/0x36c0 drivers/usb/gadget/udc/dummy_hcd.c:2005 __run_hrtimer kernel/time/hrtimer.c:1785 [inline] __hrtimer_run_queues+0x50e/0xa70 kernel/time/hrtimer.c:1849 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1866 handle_softirqs+0x1de/0x9d0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:finish_task_switch.isra.0+0x16a/0x6b0 kernel/sched/core.c:5155 Code: 31 f6 4c 8d 7b 48 e8 c5 d5 0a 00 31 f6 48 89 df e8 cb f9 ff ff 4c 89 ff e8 83 7d e8 05 e8 1e ee 35 00 fb 49 8d be 78 15 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 5a RSP: 0018:ffffc9000194fab0 EFLAGS: 00000206 RAX: 0000000000061ae1 RBX: ffff8881f5639640 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff89024ebf RDI: ffff888117c8d078 RBP: ffffc9000194faf8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888121fd8000 R13: 0000000000000000 R14: ffff888117c8bb00 R15: ffff8881f5639688 context_switch kernel/sched/core.c:5301 [inline] __schedule+0xeb9/0x4220 kernel/sched/core.c:6911 __schedule_loop kernel/sched/core.c:6993 [inline] schedule+0xdd/0x390 kernel/sched/core.c:7008 syslog_print+0x218/0x620 kernel/printk/printk.c:1611 do_syslog+0x5bd/0x6d0 kernel/printk/printk.c:1763 __do_sys_syslog kernel/printk/printk.c:1855 [inline] __se_sys_syslog kernel/printk/printk.c:1853 [inline] __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1853 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0x7b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7b78d9ba37 Code: 73 01 c3 48 8b 0d c1 f3 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 f3 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007fffc878c448 EFLAGS: 00000206 ORIG_RAX: 0000000000000067 RAX: ffffffffffffffda RBX: 00007f7b78f3b490 RCX: 00007f7b78d9ba37 RDX: 00000000000003ff RSI: 00007f7b78f3b490 RDI: 0000000000000002 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000206 R12: 00007f7b78f3b490 R13: 00007f7b78f18dfe R14: 00007f7b78f3b4f7 R15: 00007f7b78f3b4f7 BUG: scheduling while atomic: klogd/2846/0x00000102 no locks held by klogd/2846. Modules linked in: irq event stamp: 400103 hardirqs last enabled at (400102): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (400102): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (400103): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (400103): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (400074): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (400074): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (400074): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (400099): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (400099): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (400099): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [] __schedule_loop kernel/sched/core.c:6992 [inline] [] schedule+0xd6/0x390 kernel/sched/core.c:7008 ---------------- Code disassembly (best guess): 0: 31 f6 xor %esi,%esi 2: 4c 8d 7b 48 lea 0x48(%rbx),%r15 6: e8 c5 d5 0a 00 call 0xad5d0 b: 31 f6 xor %esi,%esi d: 48 89 df mov %rbx,%rdi 10: e8 cb f9 ff ff call 0xfffff9e0 15: 4c 89 ff mov %r15,%rdi 18: e8 83 7d e8 05 call 0x5e87da0 1d: e8 1e ee 35 00 call 0x35ee40 22: fb sti 23: 49 8d be 78 15 00 00 lea 0x1578(%r14),%rdi * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 89 fa mov %rdi,%rdx 37: 48 c1 ea 03 shr $0x3,%rdx 3b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 3f: 5a pop %rdx