------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:455! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 566 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:hfs_write_inode+0x84e/0x870 fs/hfs/inode.c:455 Code: c7 c1 c0 56 82 8b 41 b8 b7 01 00 00 49 c7 c1 60 59 82 8b 41 ff 36 e8 b1 db 20 02 48 83 c4 08 e9 76 f8 ff ff e8 63 c7 20 ff 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 bb 88 86 RSP: 0018:ffffc90003317160 EFLAGS: 00010293 RAX: ffffffff829f3c6d RBX: ffff88805739af18 RCX: ffff888023e6bc80 RDX: 0000000000000000 RSI: ffffffff8e16b340 RDI: 0000000000000000 RBP: ffffc900033172f0 R08: ffff888023e6bc80 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92000662e30 R14: 0000000000000000 R15: ffff88805739aed8 FS: 0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007234b000 CR4: 0000000000350ef0 Call Trace: write_inode fs/fs-writeback.c:1564 [inline] __writeback_single_inode+0x6f1/0xff0 fs/fs-writeback.c:1784 writeback_sb_inodes+0x6c7/0x1010 fs/fs-writeback.c:2015 wb_writeback+0x43b/0xaf0 fs/fs-writeback.c:2195 wb_do_writeback fs/fs-writeback.c:2342 [inline] wb_workfn+0x409/0xef0 fs/fs-writeback.c:2382 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfs_write_inode+0x84e/0x870 fs/hfs/inode.c:455 Code: c7 c1 c0 56 82 8b 41 b8 b7 01 00 00 49 c7 c1 60 59 82 8b 41 ff 36 e8 b1 db 20 02 48 83 c4 08 e9 76 f8 ff ff e8 63 c7 20 ff 90 <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 7c 99 4c 89 f7 e8 bb 88 86 RSP: 0018:ffffc90003317160 EFLAGS: 00010293 RAX: ffffffff829f3c6d RBX: ffff88805739af18 RCX: ffff888023e6bc80 RDX: 0000000000000000 RSI: ffffffff8e16b340 RDI: 0000000000000000 RBP: ffffc900033172f0 R08: ffff888023e6bc80 R09: 0000000000000003 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92000662e30 R14: 0000000000000000 R15: ffff88805739aed8 FS: 0000000000000000(0000) GS:ffff88812623b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30911ff8 CR3: 000000003b0fc000 CR4: 0000000000350ef0