Bluetooth: hci4: connection err: -111 loop7: detected capacity change from 0 to 264192 9p: Could not find request transport: fdno=0x0000000000000004 ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.3/283 is trying to release lock (rcu_read_lock) at: [] __wait_on_freeing_inode+0x105/0x350 but there are no more locks to release! other info that might help us debug this: 4 locks held by syz-executor.3/283: #0: ffff88800fa123f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888017ff5020 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800fa16950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xe32/0x12d0 #3: ffffffff85c16898 (inode_hash_lock){+.+.}-{3:3}, at: insert_inode_locked+0xf9/0x890 stack backtrace: CPU: 0 UID: 0 PID: 283 Comm: syz-executor.3 Not tainted 6.19.0-rc5-next-20260113 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 print_unlock_imbalance_bug+0x118/0x130 lock_release+0x1ee/0x270 __wait_on_freeing_inode+0x10a/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1e5ea1dc27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc03352858 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffc033528e0 RCX: 00007f1e5ea1dc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc033528e0 RBP: 00007ffc033528bc R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffc033525f7 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000002d33a R14: 0000000000000004 R15: 00007ffc03352920 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.3/283 Modules linked in: CPU: 0 UID: 0 PID: 283 Comm: syz-executor.3 Not tainted 6.19.0-rc5-next-20260113 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0x25f/0x5c0 Code: f2 02 00 00 c7 43 58 01 00 00 00 bf 09 00 00 00 e8 a6 bb de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 89 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 61 f9 73 03 e8 0c 88 56 00 e9 RSP: 0018:ffff88801a85f9e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888016060000 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff8880160603fc RBP: ffff888016060000 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888016060000 R13: 0000000000000001 R14: ffffffff85c0d1f0 R15: ffff88801b8c2938 FS: 000055555d6d5400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc8a547c60 CR3: 000000000ec00000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1e5ea1dc27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc03352858 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffc033528e0 RCX: 00007f1e5ea1dc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc033528e0 RBP: 00007ffc033528bc R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffc033525f7 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000002d33a R14: 0000000000000004 R15: 00007ffc03352920 irq event stamp: 215041 hardirqs last enabled at (215041): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (215040): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (215036): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (215034): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- loop1: detected capacity change from 0 to 1 Bluetooth: unknown link type 6 vfat: Unknown parameter 'h' Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 Bluetooth: hci3: connection err: -111 loop1: detected capacity change from 0 to 1 vfat: Unknown parameter 'h' Bluetooth: unknown link type 6 Bluetooth: hci3: connection err: -111 loop1: detected capacity change from 0 to 1 vfat: Unknown parameter 'h' Bluetooth: unknown link type 6 Bluetooth: hci3: connection err: -111 Bluetooth: unknown link type 6 loop3: detected capacity change from 0 to 264192 Bluetooth: hci4: connection err: -111 EXT4-fs (loop3): VFS: Can't find ext4 filesystem 9pnet_virtio: no channels available for device ./file0 loop3: detected capacity change from 0 to 264192 EXT4-fs (loop3): VFS: Can't find ext4 filesystem Bluetooth: unknown link type 6 Bluetooth: hci3: connection err: -111 9pnet_virtio: no channels available for device ./file0 Bluetooth: unknown link type 6 Bluetooth: hci3: connection err: -111 Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive.