================================================================== BUG: KCSAN: data-race in __mark_inode_dirty / other_inode_match read to 0xffff888125e2cca0 of 8 bytes by task 16213 on cpu 1: other_inode_match+0x6b/0x5c0 fs/ext4/inode.c:5156 find_inode_nowait+0x135/0x160 fs/inode.c:1437 ext4_update_other_inodes_time fs/ext4/inode.c:5204 [inline] ext4_do_update_inode fs/ext4/inode.c:5330 [inline] ext4_mark_iloc_dirty+0x12a8/0x1580 fs/ext4/inode.c:5876 ext4_mark_inode_dirty+0xe9/0x420 fs/ext4/inode.c:6055 add_dirent_to_buf+0x263/0x390 fs/ext4/namei.c:2024 ext4_add_entry+0x37b/0x8f0 fs/ext4/namei.c:2225 ext4_add_nondir+0x31/0xa0 fs/ext4/namei.c:2553 ext4_symlink+0x7c0/0x970 fs/ext4/namei.c:3331 vfs_symlink fs/namei.c:4119 [inline] vfs_symlink+0x218/0x310 fs/namei.c:4105 do_symlinkat+0x1a5/0x1e0 fs/namei.c:4146 __do_sys_symlink fs/namei.c:4165 [inline] __se_sys_symlink fs/namei.c:4163 [inline] __x64_sys_symlink+0x3f/0x50 fs/namei.c:4163 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff888125e2cca0 of 8 bytes by task 16205 on cpu 0: __mark_inode_dirty+0x1ce/0x940 fs/fs-writeback.c:2286 generic_update_time+0x184/0x270 fs/inode.c:1667 update_time fs/inode.c:1683 [inline] file_update_time+0x237/0x300 fs/inode.c:1898 ext4_page_mkwrite+0xf9/0xce0 fs/ext4/inode.c:6204 do_page_mkwrite+0x100/0x210 mm/memory.c:2208 do_shared_fault mm/memory.c:3554 [inline] do_fault mm/memory.c:3622 [inline] handle_pte_fault mm/memory.c:3849 [inline] __handle_mm_fault+0x2089/0x2c70 mm/memory.c:3973 handle_mm_fault+0x21b/0x530 mm/memory.c:4010 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline] __do_page_fault+0x3fb/0x9e0 arch/x86/mm/fault.c:1506 do_page_fault+0x54/0x233 arch/x86/mm/fault.c:1530 page_fault+0x34/0x40 arch/x86/entry/entry_64.S:1202 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 16205 Comm: syz-executor.4 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================