Bluetooth: hci3: unexpected event 0x3e length: 431 > 260 Bluetooth: hci3: unexpected subevent 0x0d length: 430 > 260 Bluetooth: hci3: adv larger than maximum supported ===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260115 #1 Not tainted ------------------------------------- syz-executor.0/284 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.0/284: #0: ffff88800f9983f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801aa896f0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f99c950 (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: 1 UID: 0 PID: 284 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260115 #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 filename_mkdirat+0x118/0x430 __x64_sys_mkdir+0x6e/0xd0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f972f091c27 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:00007ffe03af0608 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe03af0690 RCX: 00007f972f091c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffe03af0690 RBP: 00007ffe03af066c R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffe03af03a7 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000002bfad R14: 000000000000000d R15: 00007ffe03af06d0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.0/284 Modules linked in: CPU: 1 UID: 0 PID: 284 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260115 #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 d6 b7 de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 8a 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 81 4d 74 03 e8 2c 5d 56 00 e9 RSP: 0018:ffff888017f579e0 EFLAGS: 00010286 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_exp.h:803 at rcu_exp_handler+0x12b/0x570, CPU#1: syz-executor.0/284 Modules linked in: CPU: 1 UID: 0 PID: 284 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260115 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_exp_handler+0x12b/0x570 Code: 03 0f b6 04 02 4c 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 cb 03 00 00 0f b6 43 11 84 c0 75 b6 85 c9 74 1d 0f 8f bf 00 00 00 90 <0f> 0b 90 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 6f d7 74 03 RSP: 0018:ffff88806cf08f50 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff88806cf38800 RCX: 00000000ffffffff RDX: 0000000000000001 RSI: ffff888015a33700 RDI: ffff888015a33afc RBP: ffffffff85e31300 R08: 0000000000000000 R09: fffffbfff0ccdd2a R10: 0000000000000001 R11: ffff88806cf08ff8 R12: ffff88806cf38811 R13: ffff88806cf38828 R14: ffffffff85e31378 R15: ffff88806cf38820 FS: 0000555577c85400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558ff0fc58 CR3: 000000000c500000 CR4: 0000000000350ef0 Call Trace: __flush_smp_call_function_queue+0x47e/0xef0 __sysvec_call_function_single+0x6d/0x310 sysvec_call_function_single+0xa1/0xc0 asm_sysvec_call_function_single+0x1a/0x20 RIP: 0010:console_flush_one_record+0x900/0xb70 Code: 8b 04 24 48 c1 e8 03 42 80 3c 38 00 0f 85 53 02 00 00 4d 89 65 58 e9 41 ff ff ff e8 da dc 1f 00 e8 d5 58 28 00 fb 48 8b 04 24 <48> c1 e8 03 42 80 3c 38 00 0f 84 1f ff ff ff 48 8b 3c 24 e8 08 2b RSP: 0018:ffff888017f57358 EFLAGS: 00000246 RAX: ffffffff86155b78 RBX: 0000000000000001 RCX: ffffffff817dfeab RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8155a58b RBP: ffff888017f574b8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8666e957 R11: 313030203a505352 R12: 0000000000000200 R13: ffffffff86155b20 R14: 0000000000000000 R15: dffffc0000000000 __console_flush_and_unlock+0xb1/0x1d0 vprintk_emit+0x4b5/0x680 _printk+0xbe/0xf0 __show_regs+0x534/0x750 show_regs+0x33/0x60 __warn+0xfc/0x370 __report_bug+0x421/0x5b0 report_bug+0x7c/0x120 handle_bug+0x2e8/0x4f0 exc_invalid_op+0x35/0x80 asm_exc_invalid_op+0x1a/0x20 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 d6 b7 de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 8a 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 81 4d 74 03 e8 2c 5d 56 00 e9 RSP: 0018:ffff888017f579e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888015a33700 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff888015a33afc RBP: ffff888015a33700 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888015a33700 R13: 0000000000000001 R14: ffffffff85c0c6b0 R15: ffff888009716bf0 __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 filename_mkdirat+0x118/0x430 __x64_sys_mkdir+0x6e/0xd0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f972f091c27 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:00007ffe03af0608 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe03af0690 RCX: 00007f972f091c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffe03af0690 RBP: 00007ffe03af066c R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffe03af03a7 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000002bfad R14: 000000000000000d R15: 00007ffe03af06d0 irq event stamp: 205241 hardirqs last enabled at (205241): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (205239): [] handle_softirqs+0x65e/0x7d0 softirqs last enabled at (205240): [] __irq_exit_rcu+0xc4/0x100 softirqs last disabled at (205231): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- RAX: 00000000ffffffff RBX: ffff888015a33700 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff888015a33afc RBP: ffff888015a33700 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888015a33700 R13: 0000000000000001 R14: ffffffff85c0c6b0 R15: ffff888009716bf0 FS: 0000555577c85400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558ff0fc58 CR3: 000000000c500000 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 filename_mkdirat+0x118/0x430 __x64_sys_mkdir+0x6e/0xd0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f972f091c27 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:00007ffe03af0608 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe03af0690 RCX: 00007f972f091c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffe03af0690 RBP: 00007ffe03af066c R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffe03af03a7 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000002bfad R14: 000000000000000d R15: 00007ffe03af06d0 irq event stamp: 205241 hardirqs last enabled at (205241): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (205239): [] handle_softirqs+0x65e/0x7d0 softirqs last enabled at (205240): [] __irq_exit_rcu+0xc4/0x100 softirqs last disabled at (205231): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 8b 04 24 mov (%rsp),%eax 3: 48 c1 e8 03 shr $0x3,%rax 7: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) c: 0f 85 53 02 00 00 jne 0x265 12: 4d 89 65 58 mov %r12,0x58(%r13) 16: e9 41 ff ff ff jmpq 0xffffff5c 1b: e8 da dc 1f 00 callq 0x1fdcfa 20: e8 d5 58 28 00 callq 0x2858fa 25: fb sti 26: 48 8b 04 24 mov (%rsp),%rax * 2a: 48 c1 e8 03 shr $0x3,%rax <-- trapping instruction 2e: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 33: 0f 84 1f ff ff ff je 0xffffff58 39: 48 8b 3c 24 mov (%rsp),%rdi 3d: e8 .byte 0xe8 3e: 08 2b or %ch,(%rbx)