IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 hfs: unable to locate alternate MDB hfs: continuing without an alternate MDB ------------[ cut here ]------------ kernel BUG at fs/hfs/inode.c:441! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 335 Comm: kworker/u4:7 Not tainted 5.8.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: writeback wb_workfn (flush-7:5) RIP: 0010:hfs_write_inode+0x470/0xa50 fs/hfs/inode.c:441 Code: c4 38 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 83 f8 03 0f 84 9f 00 00 00 48 83 f8 04 74 0c 48 83 f8 02 0f 84 47 fc ff ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 28 48 89 fa 48 c1 RSP: 0018:ffff8881d9297788 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff1103b252ef4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8881d9297a08 RDI: ffff8881b57387d8 RBP: ffff8881d92978e8 R08: 0000000000000000 R09: ffffed103b606cfc R10: ffff8881db0367db R11: ffffed103b606cfb R12: ffff8881b5738798 R13: dffffc0000000000 R14: ffff8881d92978c0 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd981ffb6c0 CR3: 00000001cb785000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: write_inode fs/fs-writeback.c:1312 [inline] __writeback_single_inode+0x8ce/0xd80 fs/fs-writeback.c:1511 writeback_sb_inodes+0x47d/0xf00 fs/fs-writeback.c:1716 wb_writeback+0x2a0/0x930 fs/fs-writeback.c:1892 wb_do_writeback fs/fs-writeback.c:2037 [inline] wb_workfn+0x2d2/0xe20 fs/fs-writeback.c:2078 process_one_work+0x85a/0x1620 kernel/workqueue.c:2269 worker_thread+0x81/0xb70 kernel/workqueue.c:2415 kthread+0x370/0x440 kernel/kthread.c:291 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace 2475b900c519a369 ]--- RIP: 0010:hfs_write_inode+0x470/0xa50 fs/hfs/inode.c:441 hfs: unable to locate alternate MDB Code: c4 38 01 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 83 f8 03 0f 84 9f 00 00 00 48 83 f8 04 74 0c 48 83 f8 02 0f 84 47 fc ff ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 28 48 89 fa 48 c1 RSP: 0018:ffff8881d9297788 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff1103b252ef4 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8881d9297a08 RDI: ffff8881b57387d8 hfs: continuing without an alternate MDB RBP: ffff8881d92978e8 R08: 0000000000000000 R09: ffffed103b606cfc R10: ffff8881db0367db R11: ffffed103b606cfb R12: ffff8881b5738798 R13: dffffc0000000000 R14: ffff8881d92978c0 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8881db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd981ffb6c0 CR3: 0000000008879000 CR4: 00000000001406f0 hfs: unable to locate alternate MDB DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400