syz.0.0 (5340) used greatest stack depth: 20056 bytes lef[ 109.826365][ T5320] Bluetooth: hci0: command tx timeout loop0: detected capacity change from 0 to 1024 hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5340 at fs/hfsplus/bnode.c:579 hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Modules linked in: CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Code: a1 8b 89 ee e8 40 8f 8f fe e9 cf fc ff ff e8 16 5f 28 ff 4c 89 ef e8 7e 8b d0 08 48 c7 c7 a0 b0 a1 8b 89 ee e8 20 8f 8f fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c d6 fb ff ff RSP: 0018:ffffc9000d49f500 EFLAGS: 00010246 RAX: 0000000000000023 RBX: ffff8880115e0000 RCX: 68ef5a33ee3ec400 RDX: ffffc9000e25a000 RSI: 0000000000003198 RDI: 0000000000003199 RBP: 0000000000000000 R08: ffffc9000d49f227 R09: 1ffff92001a93e44 R10: dffffc0000000000 R11: fffff52001a93e45 R12: 0000000000000000 R13: ffff8880115e00e0 R14: ffff8880119ab200 R15: dffffc0000000000 FS: 00007f5cac0056c0(0000) GS:ffff88808d252000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5c9f00f000 CR3: 0000000043051000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_bmap_alloc+0x5af/0x640 fs/hfsplus/btree.c:415 hfs_bnode_split+0xcc/0xef0 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x38f/0xcc0 fs/hfsplus/brec.c:100 hfsplus_create_cat+0x3b6/0x1000 fs/hfsplus/catalog.c:292 hfsplus_mknod+0x16a/0x290 fs/hfsplus/dir.c:494 vfs_create+0x24e/0x400 fs/namei.c:3405 do_mknodat+0x3c6/0x4d0 fs/namei.c:4285 __do_sys_mknod fs/namei.c:4318 [inline] __se_sys_mknod fs/namei.c:4316 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4316 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5cab18e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5cac005038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007f5cab3b5fa0 RCX: 00007f5cab18e929 RDX: 0000000000000701 RSI: 0000000000000000 RDI: 0000200000000000 RBP: 00007f5cab210b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f5cab3b5fa0 R15: 00007ffec1a88998