================================================================== BUG: KCSAN: data-race in __lru_add_drain_all / __pagevec_lru_add write to 0xffff888237d279a8 of 1 bytes by task 8578 on cpu 1: pagevec_reinit include/linux/pagevec.h:57 [inline] __pagevec_lru_add+0x2f5/0x320 mm/swap.c:1065 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:601 lru_add_drain+0x21/0x60 mm/swap.c:706 __pagevec_release+0x3a/0x70 mm/swap.c:997 pagevec_release include/linux/pagevec.h:82 [inline] folio_batch_release include/linux/pagevec.h:146 [inline] truncate_inode_pages_range+0x442/0xae0 mm/truncate.c:373 truncate_inode_pages+0x20/0x30 mm/truncate.c:452 kill_bdev block/bdev.c:77 [inline] set_blocksize+0x24e/0x270 block/bdev.c:153 sb_set_blocksize+0x2c/0xa0 block/bdev.c:162 __ext4_fill_super fs/ext4/super.c:4822 [inline] ext4_fill_super+0x1828/0x3a50 fs/ext4/super.c:5587 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1292 vfs_get_tree+0x49/0x190 fs/super.c:1497 do_new_mount+0x200/0x650 fs/namespace.c:3040 path_mount+0x4b1/0xb60 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x281/0x2d0 fs/namespace.c:3568 __x64_sys_mount+0x63/0x70 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888237d279a8 of 1 bytes by task 8566 on cpu 0: pagevec_count include/linux/pagevec.h:62 [inline] __lru_add_drain_all+0x118/0x3e0 mm/swap.c:826 lru_add_drain_all+0xc/0x10 mm/swap.c:849 invalidate_bdev+0x56/0x80 block/bdev.c:87 invalidate_disk+0x25/0xb0 block/genhd.c:676 __loop_clr_fd+0x3f5/0x640 drivers/block/loop.c:1147 loop_clr_fd drivers/block/loop.c:1230 [inline] lo_ioctl+0xa12/0x11b0 drivers/block/loop.c:1556 blkdev_ioctl+0x20e/0x440 block/ioctl.c:588 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 8566 Comm: syz-executor.5 Not tainted 5.18.0-rc3-syzkaller-00080-gd569e86915b7-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================