================================================================== BUG: KCSAN: data-race in __rb_rotate_set_parents / vm_area_dup write to 0xffff888124d20378 of 8 bytes by task 4165 on cpu 1: rb_set_parent_color include/linux/rbtree_augmented.h:165 [inline] __rb_rotate_set_parents+0x5c/0xf0 lib/rbtree.c:80 __rb_insert lib/rbtree.c:215 [inline] __rb_insert_augmented+0x109/0x370 lib/rbtree.c:459 rb_insert_augmented include/linux/rbtree_augmented.h:50 [inline] rb_insert_augmented_cached include/linux/rbtree_augmented.h:60 [inline] vma_interval_tree_insert+0x196/0x230 mm/interval_tree.c:23 __vma_link_file+0xd9/0x110 mm/mmap.c:634 __vma_adjust+0x1ac/0x11d0 mm/mmap.c:817 vma_adjust include/linux/mm.h:2261 [inline] __split_vma+0x208/0x350 mm/mmap.c:2685 __do_munmap+0x233/0xb60 mm/mmap.c:2772 __vm_munmap+0xb2/0x130 mm/mmap.c:2846 vm_munmap+0x29/0x40 mm/mmap.c:2864 elf_map+0x1f6/0x200 fs/binfmt_elf.c:379 load_elf_binary+0x90c/0x2f10 fs/binfmt_elf.c:982 search_binary_handler fs/exec.c:1658 [inline] search_binary_handler+0x127/0x420 fs/exec.c:1635 exec_binprm fs/exec.c:1701 [inline] __do_execve_file.isra.0+0xb6a/0x1140 fs/exec.c:1821 do_execveat_common fs/exec.c:1867 [inline] do_execve+0x3c/0x60 fs/exec.c:1884 call_usermodehelper_exec_async+0x3b0/0x400 kernel/umh.c:112 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff888124d20320 of 200 bytes by task 4164 on cpu 0: vm_area_dup+0x70/0xf0 kernel/fork.c:362 __split_vma+0x88/0x350 mm/mmap.c:2656 __do_munmap+0x233/0xb60 mm/mmap.c:2772 __vm_munmap+0xb2/0x130 mm/mmap.c:2846 vm_munmap+0x29/0x40 mm/mmap.c:2864 elf_map+0x1f6/0x200 fs/binfmt_elf.c:379 load_elf_binary+0x90c/0x2f10 fs/binfmt_elf.c:982 search_binary_handler fs/exec.c:1658 [inline] search_binary_handler+0x127/0x420 fs/exec.c:1635 exec_binprm fs/exec.c:1701 [inline] __do_execve_file.isra.0+0xb6a/0x1140 fs/exec.c:1821 do_execveat_common fs/exec.c:1867 [inline] do_execve+0x3c/0x60 fs/exec.c:1884 call_usermodehelper_exec_async+0x3b0/0x400 kernel/umh.c:112 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 4164 Comm: modprobe Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================