================================================================== BUG: KCSAN: data-race in jbd2_journal_commit_transaction / jbd2_log_wait_commit write to 0xffff888103697468 of 4 bytes by task 1404 on cpu 0: jbd2_journal_commit_transaction+0x2a77/0x3460 fs/jbd2/commit.c:1154 kjournald2+0x263/0x480 fs/jbd2/journal.c:213 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 read to 0xffff888103697468 of 4 bytes by task 31541 on cpu 1: jbd2_log_wait_commit+0x100/0x210 fs/jbd2/journal.c:712 jbd2_journal_stop+0x522/0x6a0 fs/jbd2/transaction.c:1932 __ext4_journal_stop+0x99/0x110 fs/ext4/ext4_jbd2.c:127 ext4_mkdir+0x2e0/0x760 fs/ext4/namei.c:2970 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: 0x00005aed -> 0x00005aee Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 31541 Comm: syz-executor.3 Tainted: G W 5.16.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================