EXT4-fs (loop1): invalid inodes per group: 261664 ================================================================== BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru write to 0xffff888237d283f8 of 8 bytes by task 22015 on cpu 1: __invalidate_bh_lrus fs/buffer.c:1392 [inline] invalidate_bh_lru+0xad/0x110 fs/buffer.c:1404 smp_call_function_many_cond+0x4f1/0x6d0 kernel/smp.c:979 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1154 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1423 invalidate_bdev+0x51/0x80 block/bdev.c:86 invalidate_disk+0x25/0xb0 block/genhd.c:688 __loop_clr_fd+0x176/0x3c0 drivers/block/loop.c:1159 loop_clr_fd drivers/block/loop.c:1252 [inline] lo_ioctl+0xd8c/0x1290 drivers/block/loop.c:1558 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614 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+0x63/0xcd read to 0xffff888237d283f8 of 8 bytes by task 22019 on cpu 0: has_bh_in_lru+0x31/0x1c0 fs/buffer.c:1414 smp_call_function_many_cond+0x2a9/0x6d0 kernel/smp.c:936 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1154 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x26/0x30 fs/buffer.c:1423 invalidate_bdev+0x51/0x80 block/bdev.c:86 invalidate_disk+0x25/0xb0 block/genhd.c:688 __loop_clr_fd+0x176/0x3c0 drivers/block/loop.c:1159 loop_clr_fd drivers/block/loop.c:1252 [inline] lo_ioctl+0xd8c/0x1290 drivers/block/loop.c:1558 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614 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+0x63/0xcd value changed: 0xffff8881063658f0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22019 Comm: syz-executor.1 Not tainted 5.19.0-rc8-syzkaller-00105-g6e2c0490769e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================