================================================================== BUG: KCSAN: data-race in iput / other_inode_match read to 0xffff88811fcb1840 of 8 bytes by task 24052 on cpu 1: other_inode_match+0x6b/0x5c0 fs/ext4/inode.c:4820 find_inode_nowait+0x135/0x160 fs/inode.c:1437 ext4_update_other_inodes_time fs/ext4/inode.c:4868 [inline] ext4_do_update_inode fs/ext4/inode.c:4994 [inline] ext4_mark_iloc_dirty+0x12a8/0x1580 fs/ext4/inode.c:5547 ext4_mark_inode_dirty+0xe9/0x420 fs/ext4/inode.c:5740 ext4_dirty_inode+0xb1/0xe0 fs/ext4/inode.c:5771 __mark_inode_dirty+0x5d4/0x940 fs/fs-writeback.c:2258 mark_inode_dirty include/linux/fs.h:2172 [inline] generic_write_end+0x1b7/0x1f0 fs/buffer.c:2199 ext4_da_write_end+0x158/0x620 fs/ext4/inode.c:3091 generic_perform_write+0x1d3/0x320 mm/filemap.c:3320 ext4_buffered_write_iter+0x143/0x290 fs/ext4/file.c:252 ext4_file_write_iter+0xf4/0xd40 fs/ext4/file.c:547 call_write_iter include/linux/fs.h:1902 [inline] new_sync_write+0x388/0x4a0 fs/read_write.c:483 __vfs_write+0xb1/0xc0 fs/read_write.c:496 vfs_write fs/read_write.c:558 [inline] vfs_write+0x18a/0x390 fs/read_write.c:542 ksys_write+0xd5/0x1b0 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x4c/0x60 fs/read_write.c:620 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88811fcb1840 of 8 bytes by task 7949 on cpu 0: iput_final fs/inode.c:1558 [inline] iput+0x2f6/0x4e0 fs/inode.c:1589 do_unlinkat+0x378/0x530 fs/namei.c:4073 __do_sys_unlink fs/namei.c:4114 [inline] __se_sys_unlink fs/namei.c:4112 [inline] __x64_sys_unlink+0x3b/0x50 fs/namei.c:4112 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7949 Comm: syz-executor.5 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================