BUG: sleeping function called from invalid context at drivers/usb/core/urb.c:705 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5199, name: udevd preempt_count: 100, expected: 0 RCU nest depth: 1, expected: 0 1 lock held by udevd/5199: #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1193 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xbd/0x1ea0 arch/x86/kernel/unwind_orc.c:495 irq event stamp: 1452149 hardirqs last enabled at (1452148): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (1452148): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (1452149): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (1452149): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (1452122): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (1452122): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (1452122): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (1452145): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (1452145): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (1452145): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:463 [inline] [] handle_softirqs+0xf5/0x9d0 kernel/softirq.c:598 CPU: 1 UID: 0 PID: 5199 Comm: udevd 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:deref_stack_reg arch/x86/kernel/unwind_orc.c:422 [inline] RIP: 0010:unwind_next_frame+0xb1d/0x1ea0 arch/x86/kernel/unwind_orc.c:600 Code: 76 f8 ba 08 00 00 00 4d 8d 7d 34 4c 89 ef 48 89 74 24 28 e8 15 f3 ff ff 84 c0 0f 84 39 f8 ff ff 48 8b 7c 24 28 e8 e3 ec ff ff <48> 89 ee 48 8b 4c 24 20 48 ba 00 00 00 00 00 fc ff df 48 c1 ee 03 RSP: 0018:ffffc90002baf500 EFLAGS: 00000202 RAX: ffffffff820d3730 RBX: 0000000000000001 RCX: ffffffff8b60277c RDX: ffffc90002baf801 RSI: ffffc90002baf8f0 RDI: ffffc90002baf8f0 RBP: ffffc90002baf5b8 R08: ffffffff8b602780 R09: 0000000000000007 R10: 0000000000000200 R11: 00000000000115cd R12: ffffc90002baf5c0 R13: ffffc90002baf570 R14: ffffc90002baf8f8 R15: ffffc90002baf5a4 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:415 kmalloc_noprof include/linux/slab.h:950 [inline] slab_free_hook mm/slub.c:2637 [inline] slab_free mm/slub.c:6165 [inline] kmem_cache_free+0x400/0x640 mm/slub.c:6295 file_free fs/file_table.c:79 [inline] __fput_deferred+0x3e6/0x490 fs/file_table.c:524 fput_close+0x118/0x250 fs/file_table.c:586 path_openat+0xfec/0x31a0 fs/namei.c:4845 do_file_open+0x20e/0x430 fs/namei.c:4865 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 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: 0033:0x7f8a70ddd407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffefbfcc6c0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f8a70cef880 RCX: 00007f8a70ddd407 RDX: 0000000000080000 RSI: 00007ffefbfcc830 RDI: ffffffffffffff9c RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00005564df83b7f5 R13: 00005564df83b7f5 R14: 0000000000000001 R15: 00005564df856140 BUG: scheduling while atomic: udevd/5199/0x00000101 1 lock held by udevd/5199: #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: class_rcu_constructor include/linux/rcupdate.h:1193 [inline] #0: ffffffff896de760 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xbd/0x1ea0 arch/x86/kernel/unwind_orc.c:495 Modules linked in: irq event stamp: 1452149 hardirqs last enabled at (1452148): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] hardirqs last enabled at (1452148): [] _raw_spin_unlock_irqrestore+0x52/0x80 kernel/locking/spinlock.c:194 hardirqs last disabled at (1452149): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:130 [inline] hardirqs last disabled at (1452149): [] _raw_spin_lock_irqsave+0x52/0x60 kernel/locking/spinlock.c:162 softirqs last enabled at (1452122): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (1452122): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (1452122): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 softirqs last disabled at (1452145): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (1452145): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (1452145): [] __irq_exit_rcu+0xed/0x150 kernel/softirq.c:723 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:463 [inline] [] handle_softirqs+0xf5/0x9d0 kernel/softirq.c:598 ---------------- Code disassembly (best guess): 0: 76 f8 jbe 0xfffffffa 2: ba 08 00 00 00 mov $0x8,%edx 7: 4d 8d 7d 34 lea 0x34(%r13),%r15 b: 4c 89 ef mov %r13,%rdi e: 48 89 74 24 28 mov %rsi,0x28(%rsp) 13: e8 15 f3 ff ff call 0xfffff32d 18: 84 c0 test %al,%al 1a: 0f 84 39 f8 ff ff je 0xfffff859 20: 48 8b 7c 24 28 mov 0x28(%rsp),%rdi 25: e8 e3 ec ff ff call 0xffffed0d * 2a: 48 89 ee mov %rbp,%rsi <-- trapping instruction 2d: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 32: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 39: fc ff df 3c: 48 c1 ee 03 shr $0x3,%rsi