/dev/nullb0: Can't open blockdev ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5047 at fs/erofs/super.c:862 erofs_kill_sb+0x206/0x260 fs/erofs/super.c:862 Modules linked in: CPU: 0 PID: 5047 Comm: syz-executor356 Not tainted 6.5.0-rc3-next-20230728-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:erofs_kill_sb+0x206/0x260 fs/erofs/super.c:862 Code: 00 00 5b 5d 41 5c 41 5d e9 e7 27 b7 fd e8 e2 27 b7 fd 48 89 df e8 6a 81 1b fe 5b 5d 41 5c 41 5d e9 cf 27 b7 fd e8 ca 27 b7 fd <0f> 0b e9 41 fe ff ff e8 5e f6 0b fe e9 1a fe ff ff e8 54 f6 0b fe RSP: 0018:ffffc90003c2fca0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888029aee000 RCX: 0000000000000000 RDX: ffff8880268e9dc0 RSI: ffffffff83cfdc26 RDI: 0000000000000007 RBP: 00000000e0f5e1e2 R08: 0000000000000007 R09: 00000000e0f5e1e2 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: 1ffff92000785fa0 R14: 00000000fffffff0 R15: ffff88807d747cf8 FS: 0000555556001380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055aecc7b6468 CR3: 000000007b9d9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: deactivate_locked_super+0x9a/0x170 fs/super.c:330 get_tree_bdev+0x4c7/0x6a0 fs/super.c:1347 vfs_get_tree+0x88/0x350 fs/super.c:1521 do_new_mount fs/namespace.c:3335 [inline] path_mount+0x1492/0x1ed0 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount fs/namespace.c:3861 [inline] __x64_sys_mount+0x293/0x310 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7610a75f09 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffaf351d38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 6c756e2f7665642f RCX: 00007f7610a75f09 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000020000000 RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000555556002378 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffaf351d70 R14: 00007fffaf351d5c R15: 00007f7610abf03b