On Sun, Jun 12, 2022 at 11:59:58AM -0600, Yu Zhao wrote: > Please let me know if there is something we want to test -- I can > reproduce the problem reliably: > > ------------[ cut here ]------------ > kernel BUG at mm/usercopy.c:101! The line right before cut here would have been nice ;-) https://lore.kernel.org/linux-mm/YqXU+oU7wayOcmCe@xxxxxxxxxxxxxxxxxxxx/ might fix your problem, but I can't be sure without that line. > Internal error: Oops - BUG: 0 [#1] PREEMPT SMP > CPU: 4 PID: 3259 Comm: iptables Not tainted 5.19.0-rc1-lockdep+ #1 > pc : usercopy_abort+0x9c/0xa0 > lr : usercopy_abort+0x9c/0xa0 > sp : ffffffc010bd78d0 > x29: ffffffc010bd78e0 x28: 42ffff80ac08d8ec x27: 42ffff80ac08d8ec > x26: 42ffff80ac08d8c0 x25: 000000000000000a x24: ffffffdf4c7e5120 > x23: 000000000bec44c2 x22: efffffc000000000 x21: ffffffdf2896b0c0 > x20: 0000000000000001 x19: 000000000000000b x18: 0000000000000000 > x17: 2820636f6c6c616d x16: 0000000000000042 x15: 6574636574656420 > x14: 74706d6574746120 x13: 0000000000000018 x12: 000000000000000d > x11: ff80007fffffffff x10: 0000000000000001 x9 : db174b7f89103400 > x8 : db174b7f89103400 x7 : 0000000000000000 x6 : 79706f6372657375 > x5 : ffffffdf4d9c617e x4 : 0000000000000000 x3 : ffffffdf4b7d017c > x2 : ffffff80eb188b18 x1 : 42ffff80ac08d8c8 x0 : 0000000000000066 > Call trace: > usercopy_abort+0x9c/0xa0 > __check_object_size+0x38c/0x400 > xt_obj_to_user+0xe4/0x200 > xt_compat_target_to_user+0xd8/0x18c > compat_copy_entries_to_user+0x278/0x424 > do_ipt_get_ctl+0x7bc/0xb2c > nf_getsockopt+0x7c/0xb4 > ip_getsockopt+0xee8/0xfa4 > raw_getsockopt+0xf4/0x23c > sock_common_getsockopt+0x48/0x54 > __sys_getsockopt+0x11c/0x2f8 > __arm64_sys_getsockopt+0x60/0x70 > el0_svc_common+0xfc/0x1cc > do_el0_svc_compat+0x38/0x5c > el0_svc_compat+0x68/0xf4 > el0t_32_sync_handler+0xc0/0xf0 > el0t_32_sync+0x190/0x194 > Code: aa0903e4 a9017bfd 910043fd 9438be18 (d4210000) > ---[ end trace 0000000000000000 ]---
