BFS-fs: bfs_fill_super(): Inode 0x00000006 corrupted on loop5 ================================================================== BUG: KCSAN: data-race in __lru_cache_add / lru_add_drain_all write to 0xffff88812c129c40 of 1 bytes by task 19355 on cpu 1: pagevec_add include/linux/pagevec.h:81 [inline] __lru_cache_add+0xb8/0x1c0 mm/swap.c:410 lru_cache_add+0x1b/0x30 mm/swap.c:447 add_to_page_cache_lru+0x16b/0x260 mm/filemap.c:937 ext4_mpage_readpages+0x31c/0x14d0 fs/ext4/readpage.c:259 ext4_readpages+0x8e/0xb0 fs/ext4/inode.c:3243 read_pages+0xa2/0x360 mm/readahead.c:126 __do_page_cache_readahead+0x358/0x380 mm/readahead.c:212 ra_submit mm/internal.h:62 [inline] ondemand_readahead+0x369/0x730 mm/readahead.c:492 page_cache_async_readahead+0x237/0x260 mm/readahead.c:574 generic_file_buffered_read mm/filemap.c:2044 [inline] generic_file_read_iter+0x1077/0x18c0 mm/filemap.c:2309 ext4_file_read_iter fs/ext4/file.c:131 [inline] ext4_file_read_iter+0x103/0x360 fs/ext4/file.c:114 call_read_iter include/linux/fs.h:1901 [inline] generic_file_splice_read+0x2df/0x470 fs/splice.c:313 do_splice_to+0xc7/0x100 fs/splice.c:892 splice_direct_to_actor+0x1b9/0x540 fs/splice.c:971 do_splice_direct+0x152/0x1d0 fs/splice.c:1080 do_sendfile+0x380/0x800 fs/read_write.c:1521 __do_sys_sendfile64 fs/read_write.c:1576 [inline] __se_sys_sendfile64 fs/read_write.c:1568 [inline] __x64_sys_sendfile64+0xb8/0x140 fs/read_write.c:1568 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88812c129c40 of 1 bytes by task 19382 on cpu 0: lru_add_drain_all+0x169/0x3a0 mm/swap.c:746 invalidate_bdev+0x65/0x90 fs/block_dev.c:98 __loop_clr_fd+0x24e/0x710 drivers/block/loop.c:1162 loop_clr_fd drivers/block/loop.c:1259 [inline] lo_ioctl+0x24a/0xc50 drivers/block/loop.c:1628 __blkdev_driver_ioctl block/ioctl.c:322 [inline] blkdev_ioctl+0x1a1/0x420 block/ioctl.c:718 block_ioctl+0x91/0xb0 fs/block_dev.c:1996 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x101/0x150 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x47/0x60 fs/ioctl.c:770 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 19382 Comm: syz-executor.5 Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================