------------[ cut here ]------------ kernel BUG at fs/hfs/btree.c:41! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 28071 Comm: syz-executor.0 Not tainted 6.6.0-rc2-syzkaller-00018-g2cf0f7156238 #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 31 6d 7e ff e9 8e fa ff ff e8 67 04 24 ff <0f> 0b e8 60 04 24 ff 0f 0b e8 59 04 24 ff 0f 0b 0f 1f 80 00 00 00 RSP: 0018:ffffc90009c2f738 EFLAGS: 00010287 RAX: ffffffff826a0699 RBX: ffff888089537850 RCX: 0000000000040000 RDX: ffffc90004199000 RSI: 0000000000007fb7 RDI: 0000000000007fb8 RBP: 0000000000000000 R08: ffffffff8269f8f7 R09: 1ffff110112a6f25 R10: dffffc0000000000 R11: ffffed10112a6f26 R12: ffff88801e624000 R13: ffff888014e9a008 R14: ffff888014e9a000 R15: dffffc0000000000 FS: 00007f026fbdc6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020060000 CR3: 0000000018bca000 CR4: 00000000003506f0 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: 0033:0x7f026ee7e1ea 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:00007f026fbdbee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f026fbdbf80 RCX: 00007f026ee7e1ea RDX: 0000000020000080 RSI: 0000000020000140 RDI: 00007f026fbdbf40 RBP: 0000000020000080 R08: 00007f026fbdbf80 R09: 000000000080c45a R10: 000000000080c45a R11: 0000000000000202 R12: 0000000020000140 R13: 00007f026fbdbf40 R14: 000000000000028d R15: 0000000020000180 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 31 6d 7e ff e9 8e fa ff ff e8 67 04 24 ff <0f> 0b e8 60 04 24 ff 0f 0b e8 59 04 24 ff 0f 0b 0f 1f 80 00 00 00 RSP: 0018:ffffc90009c2f738 EFLAGS: 00010287 RAX: ffffffff826a0699 RBX: ffff888089537850 RCX: 0000000000040000 RDX: ffffc90004199000 RSI: 0000000000007fb7 RDI: 0000000000007fb8 RBP: 0000000000000000 R08: ffffffff8269f8f7 R09: 1ffff110112a6f25 R10: dffffc0000000000 R11: ffffed10112a6f26 R12: ffff88801e624000 R13: ffff888014e9a008 R14: ffff888014e9a000 R15: dffffc0000000000 FS: 00007f026fbdc6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f285a798000 CR3: 0000000018bca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400