overlayfs: failed to resolve './file0': -2 EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue ------------[ cut here ]------------ kernel BUG at drivers/vhost/vhost.c:2247! overlayfs: overlapping lowerdir path overlayfs: failed to resolve '*/file1': -2 overlayfs: 'file0' not a directory invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 14274 Comm: vhost-14271 Not tainted 4.19.211-syzkaller #0 9pnet: Could not find request transport: xen Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:vhost_get_vq_desc+0x1d52/0x22c0 drivers/vhost/vhost.c:2247 Code: 00 00 00 48 c7 c6 80 20 3d 89 48 c7 c7 b0 4b 22 8b 48 89 ca 48 c1 e1 04 48 01 d9 e8 38 06 60 fd e9 74 ff ff ff e8 6e 0e 3b fb <0f> 0b e8 67 0e 3b fb 44 89 e2 b9 10 00 00 00 48 c7 c6 80 1e 3d 89 RSP: 0018:ffff88803dd67b30 EFLAGS: 00010293 RAX: ffff8880b3e50580 RBX: 0000000000000001 RCX: ffffffff862767f7 RDX: 0000000000000000 RSI: ffffffff86277702 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88803e7458e8 IPVS: ftp: loaded support on port[0] = 21 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc939baffc0 CR3: 00000000a1f95000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. vhost_vsock_handle_tx_kick+0x202/0xa30 drivers/vhost/vsock.c:460 vhost_worker+0x293/0x480 drivers/vhost/vhost.c:362 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. 9pnet: Could not find request transport: xen ---[ end trace 75dd2a65690d8bee ]--- RIP: 0010:vhost_get_vq_desc+0x1d52/0x22c0 drivers/vhost/vhost.c:2247 Code: 00 00 00 48 c7 c6 80 20 3d 89 48 c7 c7 b0 4b 22 8b 48 89 ca 48 c1 e1 04 48 01 d9 e8 38 06 60 fd e9 74 ff ff ff e8 6e 0e 3b fb <0f> 0b e8 67 0e 3b fb 44 89 e2 b9 10 00 00 00 48 c7 c6 80 1e 3d 89 overlayfs: failed to resolve '*/file1': -2 RSP: 0018:ffff88803dd67b30 EFLAGS: 00010293 RAX: ffff8880b3e50580 RBX: 0000000000000001 RCX: ffffffff862767f7 RDX: 0000000000000000 RSI: ffffffff86277702 RDI: 0000000000000003 EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue RBP: 0000000000000000 R08: 0000000000000400 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88803e7458e8 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 overlayfs: failed to resolve '*/file1': -2 CR2: 00005644e0b77f50 CR3: 00000000a1f95000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400