================================================================== BUG: KCSAN: data-race in ext4_free_inodes_count / ext4_free_inodes_set write to 0xffff8881030c300e of 2 bytes by task 4118 on cpu 0: ext4_free_inodes_set+0x1b/0x80 fs/ext4/super.c:385 __ext4_new_inode+0x1cf9/0x2fc0 fs/ext4/ialloc.c:1215 ext4_symlink+0x2cc/0x700 fs/ext4/namei.c:3293 vfs_symlink+0x241/0x330 fs/namei.c:4248 do_symlinkat+0x104/0x380 fs/namei.c:4277 __do_sys_symlink fs/namei.c:4299 [inline] __se_sys_symlink fs/namei.c:4297 [inline] __x64_sys_symlink+0x52/0x60 fs/namei.c:4297 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881030c300e of 2 bytes by task 1824 on cpu 1: ext4_free_inodes_count+0x18/0x80 fs/ext4/super.c:329 __ext4_new_inode+0x9f9/0x2fc0 fs/ext4/ialloc.c:1042 ext4_mkdir+0x28a/0x760 fs/ext4/namei.c:2929 vfs_mkdir+0x2c8/0x3d0 fs/namei.c:3883 do_mkdirat+0x12e/0x2c0 fs/namei.c:3909 __do_sys_mkdir fs/namei.c:3929 [inline] __se_sys_mkdir fs/namei.c:3927 [inline] __x64_sys_mkdir+0x40/0x50 fs/namei.c:3927 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x1b2a -> 0x1b29 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1824 Comm: syz-executor.5 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================