bcachefs (loop0): shutting down bcachefs (loop0): shutdown complete bcachefs: bch2_fs_get_tree() error: EPERM Filesystem bcachefs get_tree() didn't set fc->root, returned 1 ------------[ cut here ]------------ kernel BUG at fs/super.c:1810! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5390 Comm: syz.0.15 Not tainted 6.11.0-rc5-syzkaller-00316-g6cd90e5ea72f #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:vfs_get_tree+0x29f/0x2b0 fs/super.c:1810 Code: 1e 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 64 61 ed ff 48 8b 33 48 c7 c7 20 b0 18 8c 44 89 e2 e8 92 24 a9 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 RSP: 0018:ffffc90002a27d08 EFLAGS: 00010246 RAX: 000000000000003e RBX: ffffffff8ef48c20 RCX: d7482d72cfac2000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110091a7696 R08: ffffffff8174013c R09: 1ffff92000544f40 R10: dffffc0000000000 R11: fffff52000544f41 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff888048d3b498 R15: ffff888048d3b4b0 FS: 00007f526f59b6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd38d34000 CR3: 000000004a1f6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_new_mount+0x2be/0xb40 fs/namespace.c:3472 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f526e77b65a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f526f59ae68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f526f59aef0 RCX: 00007f526e77b65a RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007f526f59aeb0 RBP: 00000000200058c0 R08: 00007f526f59aef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 00007f526f59aeb0 R14: 0000000000005938 R15: 0000000020000040 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vfs_get_tree+0x29f/0x2b0 fs/super.c:1810 Code: 1e 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 64 61 ed ff 48 8b 33 48 c7 c7 20 b0 18 8c 44 89 e2 e8 92 24 a9 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 RSP: 0018:ffffc90002a27d08 EFLAGS: 00010246 RAX: 000000000000003e RBX: ffffffff8ef48c20 RCX: d7482d72cfac2000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110091a7696 R08: ffffffff8174013c R09: 1ffff92000544f40 R10: dffffc0000000000 R11: fffff52000544f41 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff888048d3b498 R15: ffff888048d3b4b0 FS: 00007f526f59b6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd39076000 CR3: 000000004a1f6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400