netem: incorrect ge model size netem: change failed ================================================================== BUG: KCSAN: data-race in init_file / prepare_creds write to 0xffff88812bea4468 of 4 bytes by task 30801 on cpu 0: get_cred_many include/linux/cred.h:219 [inline] get_cred include/linux/cred.h:235 [inline] init_file+0x2e/0x1c0 fs/file_table.c:158 alloc_empty_file+0x8b/0x200 fs/file_table.c:241 alloc_file fs/file_table.c:354 [inline] alloc_file_pseudo+0xf6/0x190 fs/file_table.c:383 sock_alloc_file+0x9c/0x1e0 net/socket.c:483 sock_map_fd net/socket.c:513 [inline] __sys_socket+0x115/0x180 net/socket.c:1756 __do_sys_socket net/socket.c:1761 [inline] __se_sys_socket net/socket.c:1759 [inline] __x64_sys_socket+0x3f/0x50 net/socket.c:1759 x64_sys_call+0x127b/0x3000 arch/x86/include/generated/asm/syscalls_64.h:42 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc0/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88812bea43c0 of 184 bytes by task 30799 on cpu 1: prepare_creds+0x6d/0x550 kernel/cred.c:192 class_prepare_creds_constructor include/linux/cred.h:283 [inline] vfs_coredump+0x1b1/0x3120 fs/coredump.c:1184 get_signal+0xd7b/0xf60 kernel/signal.c:3019 arch_do_signal_or_restart+0x96/0x450 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x6a/0x6f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x1d3/0x2a0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 30799 Comm: syz.0.5721 Tainted: G W syzkaller #0 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 ==================================================================