================================================================== BUG: KCSAN: data-race in jbd2_journal_dirty_metadata / jbd2_journal_dirty_metadata write to 0xffff888132d189b4 of 4 bytes by task 8900 on cpu 0: jbd2_journal_dirty_metadata+0x2f6/0x690 fs/jbd2/transaction.c:1538 __ext4_handle_dirty_metadata+0xfb/0x5a0 fs/ext4/ext4_jbd2.c:350 ext4_do_update_inode fs/ext4/inode.c:5095 [inline] ext4_mark_iloc_dirty+0x513/0x890 fs/ext4/inode.c:5677 ext4_xattr_set_handle+0xf77/0x1120 fs/ext4/xattr.c:2402 ext4_initxattrs+0x66/0xb0 fs/ext4/xattr_security.c:44 security_inode_init_security+0x1a9/0x260 security/security.c:1103 ext4_init_security+0x30/0x40 fs/ext4/xattr_security.c:58 __ext4_new_inode+0x2a91/0x30b0 fs/ext4/ialloc.c:1325 ext4_symlink+0x2cc/0x700 fs/ext4/namei.c:3293 vfs_symlink+0x18a/0x280 fs/namei.c:4299 do_symlinkat+0x104/0x380 fs/namei.c:4328 __do_sys_symlink fs/namei.c:4350 [inline] __se_sys_symlink fs/namei.c:4348 [inline] __x64_sys_symlink+0x52/0x60 fs/namei.c:4348 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 0xffff888132d189b4 of 4 bytes by task 8903 on cpu 1: jbd2_journal_dirty_metadata+0x16f/0x690 fs/jbd2/transaction.c:1506 __ext4_handle_dirty_metadata+0xfb/0x5a0 fs/ext4/ext4_jbd2.c:350 ext4_do_update_inode fs/ext4/inode.c:5095 [inline] ext4_mark_iloc_dirty+0x513/0x890 fs/ext4/inode.c:5677 ext4_xattr_set_handle+0xf77/0x1120 fs/ext4/xattr.c:2402 ext4_initxattrs+0x66/0xb0 fs/ext4/xattr_security.c:44 security_inode_init_security+0x1a9/0x260 security/security.c:1103 ext4_init_security+0x30/0x40 fs/ext4/xattr_security.c:58 __ext4_new_inode+0x2a91/0x30b0 fs/ext4/ialloc.c:1325 ext4_symlink+0x2cc/0x700 fs/ext4/namei.c:3293 vfs_symlink+0x18a/0x280 fs/namei.c:4299 do_symlinkat+0x104/0x380 fs/namei.c:4328 __do_sys_symlink fs/namei.c:4350 [inline] __se_sys_symlink fs/namei.c:4348 [inline] __x64_sys_symlink+0x52/0x60 fs/namei.c:4348 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: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8903 Comm: syz-executor.5 Tainted: G S W 5.17.0-rc2-syzkaller-00054-g27bb0b18c208 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================