loop3: detected capacity change from 0 to 512 ================================================================== BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru write to 0xffff888237c283f8 of 8 bytes by task 11551 on cpu 0: __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 kill_bdev block/bdev.c:76 [inline] set_blocksize+0x242/0x270 block/bdev.c:153 sb_set_blocksize block/bdev.c:162 [inline] sb_min_blocksize+0x92/0x110 block/bdev.c:178 __ext4_fill_super fs/ext4/super.c:4336 [inline] ext4_fill_super+0x371/0x4f00 fs/ext4/super.c:5507 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1292 ext4_get_tree+0x18/0x20 fs/ext4/super.c:5537 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+0x63/0xcd read to 0xffff888237c283f8 of 8 bytes by task 11554 on cpu 1: 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 kill_bdev block/bdev.c:76 [inline] set_blocksize+0x242/0x270 block/bdev.c:153 sb_set_blocksize block/bdev.c:162 [inline] sb_min_blocksize+0x92/0x110 block/bdev.c:178 __ext4_fill_super fs/ext4/super.c:4336 [inline] ext4_fill_super+0x371/0x4f00 fs/ext4/super.c:5507 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1292 ext4_get_tree+0x18/0x20 fs/ext4/super.c:5537 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+0x63/0xcd value changed: 0xffff8881066e5410 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 11554 Comm: syz-executor.3 Not tainted 5.19.0-rc7-syzkaller-00212-gaf2c9ac24019-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 ================================================================== EXT4-fs (loop3): inodes count not valid: 100663328 vs 32