loop0: detected capacity change from 0 to 224 ================================================================== BUG: KCSAN: data-race in has_bh_in_lru / invalidate_bh_lru write to 0xffff888237c28478 of 8 bytes by task 24188 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+0x5a5/0x790 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:74 [inline] set_blocksize+0x242/0x270 block/bdev.c:151 sb_set_blocksize+0x2c/0xa0 block/bdev.c:160 isofs_fill_super+0xfc2/0x17b0 fs/isofs/inode.c:862 mount_bdev+0x1e2/0x280 fs/super.c:1400 isofs_mount+0x2d/0x40 fs/isofs/inode.c:1567 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610 vfs_get_tree+0x49/0x190 fs/super.c:1530 do_new_mount+0x200/0x650 fs/namespace.c:3040 path_mount+0x4ad/0xbb0 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 0xffff888237c28478 of 8 bytes by task 24191 on cpu 1: has_bh_in_lru+0x31/0x1c0 fs/buffer.c:1414 smp_call_function_many_cond+0x34a/0x790 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:74 [inline] set_blocksize+0x242/0x270 block/bdev.c:151 sb_set_blocksize+0x2c/0xa0 block/bdev.c:160 isofs_fill_super+0xfc2/0x17b0 fs/isofs/inode.c:862 mount_bdev+0x1e2/0x280 fs/super.c:1400 isofs_mount+0x2d/0x40 fs/isofs/inode.c:1567 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610 vfs_get_tree+0x49/0x190 fs/super.c:1530 do_new_mount+0x200/0x650 fs/namespace.c:3040 path_mount+0x4ad/0xbb0 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: 0xffff888138b663a8 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 24191 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================