Kernel panic - not syncing: corrupted stack end detected inside scheduler CPU: 0 PID: 2886 Comm: syz-executor.1 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 Hardware name: riscv-virtio,qemu (DT) Call Trace: [] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:113 [] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:119 [] __dump_stack lib/dump_stack.c:88 [inline] [] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:106 [] dump_stack+0x1c/0x24 lib/dump_stack.c:113 [] panic+0x24a/0x634 kernel/panic.c:233 [] schedule_debug kernel/sched/core.c:5541 [inline] [] schedule+0x0/0x14c kernel/sched/core.c:6187 [] preempt_schedule_common+0x4e/0xde kernel/sched/core.c:6462 [] preempt_schedule+0x34/0x36 kernel/sched/core.c:6487 [] __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] [] _raw_spin_unlock+0x60/0x6a kernel/locking/spinlock.c:186 [] spin_unlock include/linux/spinlock.h:389 [inline] [] start_unregistering fs/proc/proc_sysctl.c:306 [inline] [] drop_sysctl_table+0x124/0x320 fs/proc/proc_sysctl.c:1701 [] unregister_sysctl_table fs/proc/proc_sysctl.c:1743 [inline] [] unregister_sysctl_table+0xaa/0x148 fs/proc/proc_sysctl.c:1718 [] unregister_net_sysctl_table+0x1e/0x28 net/sysctl_net.c:175 [] __addrconf_sysctl_unregister net/ipv6/addrconf.c:7060 [inline] [] addrconf_sysctl_unregister+0x82/0xdc net/ipv6/addrconf.c:7088 [] addrconf_ifdown.isra.0+0xb5e/0xe96 net/ipv6/addrconf.c:3870 [] addrconf_notify+0xca/0x1360 net/ipv6/addrconf.c:3651 [] notifier_call_chain+0xb8/0x188 kernel/notifier.c:84 [] raw_notifier_call_chain+0x2a/0x38 kernel/notifier.c:392 [] call_netdevice_notifiers_info+0x9e/0x10c net/core/dev.c:1919 [] call_netdevice_notifiers_extack net/core/dev.c:1931 [inline] [] call_netdevice_notifiers net/core/dev.c:1945 [inline] [] unregister_netdevice_many+0x77a/0xf50 net/core/dev.c:10415 [] unregister_netdevice_queue+0x23c/0x29a net/core/dev.c:10349 [] unregister_netdevice include/linux/netdevice.h:2901 [inline] [] __tun_detach+0xb9e/0xbf4 drivers/net/tun.c:676 [] tun_detach drivers/net/tun.c:693 [inline] [] tun_chr_close+0x88/0x13e drivers/net/tun.c:3405 [] __fput+0x164/0x502 fs/file_table.c:311 [] ____fput+0x1a/0x24 fs/file_table.c:344 [] task_work_run+0xdc/0x154 kernel/task_work.c:164 [] tracehook_notify_resume include/linux/tracehook.h:188 [inline] [] do_notify_resume+0x894/0xa56 arch/riscv/kernel/signal.c:320 [] ret_from_exception+0x0/0x10 SMP: stopping secondary CPUs Rebooting in 86400 seconds..