TCP: request_sock_TCP: Possible SYN flooding on port [::]:20002. Sending cookies. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6536 at kernel/workqueue.c:2257 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 6536 at kernel/workqueue.c:2257 is_chained_work kernel/workqueue.c:2199 [inline] WARNING: CPU: 1 PID: 6536 at kernel/workqueue.c:2257 __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 6536 Comm: syz.3.7 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe50/0x1308 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2199 [inline] lr : __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 sp : ffff800080017b20 x29: ffff800080017b70 x28: 1fffe0001a865001 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d83f3000 x24: 0000000000000008 x23: 1fffe0001a865001 x22: ffff0000d83f31c0 x21: 0000000000000100 x20: ffff0000d4328000 x19: ffff0000e0028930 x18: ffff0000cea6a240 x17: ffff800123e21000 x16: ffff8000831615b0 x15: 0000000000000002 x14: ffff80008f8d05e8 x13: dfff800000000000 x12: 00000000bbbac011 x11: 0000000044ceb82b x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d4328000 x7 : ffff800080470ed8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008decc740 x2 : ffff0000e0028930 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] (P) is_chained_work kernel/workqueue.c:2199 [inline] (P) __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (P) current_wq_worker kernel/workqueue_internal.h:69 [inline] (L) is_chained_work kernel/workqueue.c:2199 [inline] (L) __queue_work+0xe50/0x1308 kernel/workqueue.c:2256 (L) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2485 call_timer_fn+0x1b4/0x8f0 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1840 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2449 handle_softirqs+0x2e0/0xbf8 kernel/softirq.c:554 __do_softirq+0x14/0x20 kernel/softirq.c:588 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x544 kernel/softirq.c:655 irq_exit_rcu+0x14/0x84 kernel/softirq.c:671 __el1_irq arch/arm64/kernel/entry-common.c:561 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:575 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:580 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:596 PageTail include/linux/page-flags.h:281 [inline] (P) folio_memcg_kmem include/linux/memcontrol.h:566 [inline] (P) folio_memcg_charged include/linux/memcontrol.h:458 [inline] (P) commit_charge+0x38/0x160 mm/memcontrol.c:2370 (P) mem_cgroup_commit_charge mm/memcontrol.c:2391 [inline] (L) charge_memcg+0xd4/0x148 mm/memcontrol.c:4476 (L) mem_cgroup_commit_charge mm/memcontrol.c:2391 [inline] charge_memcg+0xd4/0x148 mm/memcontrol.c:4476 __mem_cgroup_charge+0x38/0xa8 mm/memcontrol.c:4487 mem_cgroup_charge include/linux/memcontrol.h:694 [inline] shmem_alloc_and_add_folio+0xa00/0x15b0 mm/shmem.c:1818 shmem_get_folio_gfp+0x568/0x179c mm/shmem.c:2330 shmem_get_folio mm/shmem.c:2436 [inline] shmem_write_begin+0x140/0x500 mm/shmem.c:3038 generic_perform_write+0x29c/0x868 mm/filemap.c:4054 shmem_file_write_iter+0x110/0x138 mm/shmem.c:3213 new_sync_write fs/read_write.c:590 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:683 ksys_write+0x15c/0x26c fs/read_write.c:736 __do_sys_write fs/read_write.c:748 [inline] __se_sys_write fs/read_write.c:745 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:745 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 50165 hardirqs last enabled at (50164): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:387 hardirqs last disabled at (50165): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (50165): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (46934): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (46934): [] handle_softirqs+0xa38/0xbf8 kernel/softirq.c:582 softirqs last disabled at (50115): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---