------------[ cut here ]------------ WARNING: CPU: 1 PID: 113 at kernel/bpf/memalloc.c:649 check_mem_cache kernel/bpf/memalloc.c:649 [inline] WARNING: CPU: 1 PID: 113 at kernel/bpf/memalloc.c:649 check_leaked_objs kernel/bpf/memalloc.c:667 [inline] WARNING: CPU: 1 PID: 113 at kernel/bpf/memalloc.c:649 free_mem_alloc_no_barrier+0x204/0x514 kernel/bpf/memalloc.c:683 Modules linked in: CPU: 1 UID: 0 PID: 113 Comm: kworker/u8:4 Not tainted 6.15.0-rc5-syzkaller-gc32f8dc5aaf9 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: events_unbound free_mem_alloc_deferred pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : check_mem_cache kernel/bpf/memalloc.c:649 [inline] pc : check_leaked_objs kernel/bpf/memalloc.c:667 [inline] pc : free_mem_alloc_no_barrier+0x204/0x514 kernel/bpf/memalloc.c:683 lr : check_mem_cache kernel/bpf/memalloc.c:649 [inline] lr : check_leaked_objs kernel/bpf/memalloc.c:667 [inline] lr : free_mem_alloc_no_barrier+0x204/0x514 kernel/bpf/memalloc.c:683 sp : ffff80009b427a10 x29: ffff80009b427a20 x28: ffffffffffffffff x27: 0000000000000000 x26: ffff80008ec24258 x25: ffff80008ec24258 x24: dfff800000000000 x23: fffffdffbf6e0ce8 x22: fffffdffbf6e0c40 x21: 1ffff00011d8484b x20: ffff0000f0b02f08 x19: ffff0000f0b02f00 x18: 1fffe00033871676 x17: ffff80010d12e000 x16: ffff80008adb421c x15: 0000000000000001 x14: 1ffff00013684f24 x13: 0000000000000000 x12: 0000000000000000 x11: ffff700013684f25 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c55d1e80 x7 : ffff80008adc3498 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008adc37ac x2 : 0000000000000001 x1 : 0000000000000003 x0 : 0000000000000000 Call trace: check_mem_cache kernel/bpf/memalloc.c:649 [inline] (P) check_leaked_objs kernel/bpf/memalloc.c:667 [inline] (P) free_mem_alloc_no_barrier+0x204/0x514 kernel/bpf/memalloc.c:683 (P) free_mem_alloc kernel/bpf/memalloc.c:706 [inline] free_mem_alloc_deferred+0x2c/0x1a4 kernel/bpf/memalloc.c:713 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3400 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847 irq event stamp: 254062 hardirqs last enabled at (254061): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (254061): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (254062): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (253980): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (253980): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] softirqs last enabled at (253980): [] nsim_dev_trap_report_work+0x67c/0x9fc drivers/net/netdevsim/dev.c:851 softirqs last disabled at (253978): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (253978): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline] softirqs last disabled at (253978): [] nsim_dev_trap_report_work+0x5f4/0x9fc drivers/net/netdevsim/dev.c:851 ---[ end trace 0000000000000000 ]---