================================================================== BUG: KCSAN: data-race in __bpf_lru_list_rotate / bpf_lru_push_free write to 0xffff88801adda8da of 1 bytes by task 27364 on cpu 1: __bpf_lru_node_move kernel/bpf/bpf_lru_list.c:111 [inline] __bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:151 [inline] __bpf_lru_list_rotate+0x328/0x7b0 kernel/bpf/bpf_lru_list.c:240 bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:329 [inline] bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline] bpf_lru_pop_free+0x7bc/0xed0 kernel/bpf/bpf_lru_list.c:499 prealloc_lru_pop kernel/bpf/hashtab.c:264 [inline] htab_lru_map_update_elem+0xaf/0x4a0 kernel/bpf/hashtab.c:1099 bpf_map_update_value+0x1b9/0x300 kernel/bpf/syscall.c:201 generic_map_update_batch+0x344/0x450 kernel/bpf/syscall.c:1350 bpf_map_do_batch+0x286/0x2f0 kernel/bpf/syscall.c:3990 __do_sys_bpf+0x87c/0x9950 kernel/bpf/syscall.c:4446 __se_sys_bpf kernel/bpf/syscall.c:4340 [inline] __x64_sys_bpf+0x3d/0x50 kernel/bpf/syscall.c:4340 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88801adda8da of 1 bytes by task 27367 on cpu 0: bpf_common_lru_push_free kernel/bpf/bpf_lru_list.c:507 [inline] bpf_lru_push_free+0xd7/0x590 kernel/bpf/bpf_lru_list.c:555 htab_lru_map_update_elem+0x454/0x4a0 kernel/bpf/hashtab.c:1130 bpf_map_update_value+0x1b9/0x300 kernel/bpf/syscall.c:201 generic_map_update_batch+0x344/0x450 kernel/bpf/syscall.c:1350 bpf_map_do_batch+0x286/0x2f0 kernel/bpf/syscall.c:3990 __do_sys_bpf+0x87c/0x9950 kernel/bpf/syscall.c:4446 __se_sys_bpf kernel/bpf/syscall.c:4340 [inline] __x64_sys_bpf+0x3d/0x50 kernel/bpf/syscall.c:4340 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 27367 Comm: syz-executor.5 Not tainted 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================