watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz.0.223:7431] Modules linked in: irq event stamp: 82874 hardirqs last enabled at (82873): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (82873): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (82874): [] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline] hardirqs last disabled at (82874): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575 softirqs last enabled at (82872): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (82872): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (82857): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 CPU: 0 UID: 0 PID: 7431 Comm: syz.0.223 Not tainted 6.14.0-rc2-syzkaller-ga64dcfb451e2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : csd_lock_wait kernel/smp.c:340 [inline] pc : smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885 lr : csd_lock_wait kernel/smp.c:340 [inline] lr : smp_call_function_many_cond+0x19cc/0x3298 kernel/smp.c:885 sp : ffff80009fd07910 x29: ffff80009fd07a50 x28: 1fffe000366f4d19 x27: dfff800000000000 x26: ffff0001b37cf4e8 x25: 0000000000000001 x24: 0000000000000008 x23: ffffffffffffffff x22: 1fffe000366f4d18 x21: 0000000000000011 x20: ffff0001b37a68c8 x19: ffff0001b37a68c0 x18: ffff0000dc054240 x17: 0000000000000000 x16: ffff8000832b0650 x15: 0000000000000001 x14: 1fffe000366f9e9d x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000007ffff x9 : 0000000000000000 x8 : 0000000000000011 x7 : ffff80008015b2a8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000805eeb94 x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P) __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P) csd_lock_wait kernel/smp.c:340 [inline] (P) smp_call_function_many_cond+0x19b4/0x3298 kernel/smp.c:885 (P) smp_call_function_many kernel/smp.c:909 [inline] smp_call_function kernel/smp.c:931 [inline] kick_all_cpus_sync+0x40/0xa0 kernel/smp.c:1076 arch_jump_label_transform_apply+0x14/0x20 arch/arm64/kernel/jump_label.c:34 __jump_label_update+0x30c/0x334 kernel/jump_label.c:521 jump_label_update+0x30c/0x3bc kernel/jump_label.c:920 static_key_slow_inc_cpuslocked+0x98/0x118 kernel/jump_label.c:168 static_key_slow_inc+0x24/0x40 kernel/jump_label.c:191 io_uring_create+0xf8/0xabc io_uring/io_uring.c:3625 io_uring_setup io_uring/io_uring.c:3791 [inline] __do_sys_io_uring_setup io_uring/io_uring.c:3818 [inline] __se_sys_io_uring_setup io_uring/io_uring.c:3812 [inline] __arm64_sys_io_uring_setup+0x3a4/0x470 io_uring/io_uring.c:3812 __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 Sending NMI from CPU 0 to CPUs 1: