bcachefs: bch2_fs_get_tree() error: EPERM
Filesystem bcachefs get_tree() didn't set fc->root, returned 1
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kernel BUG at fs/super.c:1810!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5424 Comm: syz.0.27 Not tainted 6.11.0-syzkaller-11728-gad46e8f95e93 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:vfs_get_tree+0x347/0x380 fs/super.c:1810
Code: 00 00 b8 ff ff 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 80 3c 02 00 75 1e 48 8b 33 89 ea 48 c7 c7 80 f5 7d 8b e8 1a 7a 6c ff 90 <0f> 0b e8 d2 64 ed ff e9 8d fe ff ff 48 89 df e8 c5 64 ed ff eb d8
RSP: 0018:ffffc900031efd78 EFLAGS: 00010282
RAX: 000000000000003e RBX: ffffffff8ea911c0 RCX: ffffc9000932a000
RDX: 0000000000000000 RSI: ffffffff816d7fb6 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000022 R14: ffffc900031efeb0 R15: 1ffff9200063dfba
FS:  00007f361c0d66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02811e1ffc CR3: 000000005f446000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 do_new_mount fs/namespace.c:3507 [inline]
 path_mount+0x14e6/0x1f20 fs/namespace.c:3834
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount fs/namespace.c:4032 [inline]
 __x64_sys_mount+0x294/0x320 fs/namespace.c:4032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f361b37f79a
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:00007f361c0d5e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f361c0d5ef0 RCX: 00007f361b37f79a
RDX: 0000000020005d80 RSI: 0000000020000240 RDI: 00007f361c0d5eb0
RBP: 0000000020005d80 R08: 00007f361c0d5ef0 R09: 0000000000000044
R10: 0000000000000044 R11: 0000000000000246 R12: 0000000020000240
R13: 00007f361c0d5eb0 R14: 0000000000005dee R15: 0000000020000540
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vfs_get_tree+0x347/0x380 fs/super.c:1810
Code: 00 00 b8 ff ff 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 80 3c 02 00 75 1e 48 8b 33 89 ea 48 c7 c7 80 f5 7d 8b e8 1a 7a 6c ff 90 <0f> 0b e8 d2 64 ed ff e9 8d fe ff ff 48 89 df e8 c5 64 ed ff eb d8
RSP: 0018:ffffc900031efd78 EFLAGS: 00010282
RAX: 000000000000003e RBX: ffffffff8ea911c0 RCX: ffffc9000932a000
RDX: 0000000000000000 RSI: ffffffff816d7fb6 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000022 R14: ffffc900031efeb0 R15: 1ffff9200063dfba
FS:  00007f361c0d66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005f446000 CR4: 0000000000350ef0