loop3: detected capacity change from 0 to 64 ------------[ cut here ]------------ kernel BUG at fs/hfs/btree.c:41! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 15655 Comm: syz-executor.3 Not tainted 6.6.0-rc1-syzkaller-00115-g9fdfb15a3dbf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:hfs_btree_open+0xf09/0xf20 fs/hfs/btree.c:41 Code: 7e ff e9 7e fa ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 9b fa ff ff 4c 89 f7 e8 c1 ca 7e ff e9 8e fa ff ff e8 77 db 24 ff <0f> 0b e8 70 db 24 ff 0f 0b e8 69 db 24 ff 0f 0b 0f 1f 80 00 00 00 RSP: 0018:ffffc90015e7f738 EFLAGS: 00010293 RAX: ffffffff8268c819 RBX: ffff888038e99870 RCX: ffff888025d48000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8268ba77 R09: 1ffff110071d3329 R10: dffffc0000000000 R11: ffffed10071d332a R12: ffff888021190000 R13: ffff888021192008 R14: ffff888021192000 R15: dffffc0000000000 FS: 00007fc9861ac6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7b627fe000 CR3: 0000000076deb000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfs_mdb_get+0x1443/0x21b0 fs/hfs/mdb.c:199 hfs_fill_super+0x107d/0x1790 fs/hfs/super.c:406 mount_bdev+0x237/0x300 fs/super.c:1629 legacy_get_tree+0xef/0x190 fs/fs_context.c:638 vfs_get_tree+0x8c/0x280 fs/super.c:1750 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc98547e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc9861abee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc9861abf80 RCX: 00007fc98547e1ea RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007fc9861abf40 RBP: 0000000020000040 R08: 00007fc9861abf80 R09: 0000000000800000 R10: 0000000000800000 R11: 0000000000000202 R12: 0000000020000080 R13: 00007fc9861abf40 R14: 0000000000000290 R15: 0000000020000480 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfs_btree_open+0xf09/0xf20 fs/hfs/btree.c:41 Code: 7e ff e9 7e fa ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 9b fa ff ff 4c 89 f7 e8 c1 ca 7e ff e9 8e fa ff ff e8 77 db 24 ff <0f> 0b e8 70 db 24 ff 0f 0b e8 69 db 24 ff 0f 0b 0f 1f 80 00 00 00 RSP: 0018:ffffc90015e7f738 EFLAGS: 00010293 RAX: ffffffff8268c819 RBX: ffff888038e99870 RCX: ffff888025d48000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8268ba77 R09: 1ffff110071d3329 R10: dffffc0000000000 R11: ffffed10071d332a R12: ffff888021190000 R13: ffff888021192008 R14: ffff888021192000 R15: dffffc0000000000 FS: 00007fc9861ac6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7a9e39d988 CR3: 0000000076deb000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400