===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.7/5341 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.7/5341: #0: ffff88800f9023f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801bef03e0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f906950 (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: 5341 Comm: syz-executor.7 Not tainted 6.19.0-rc5-next-20260116 #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_symlink+0x623/0xb40 vfs_symlink+0x44b/0x840 filename_symlinkat+0x158/0x440 __x64_sys_symlink+0x82/0x110 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f35a759e427 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 58 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:00007ffec64ddc98 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f35a759e427 RDX: 00007ffec64ddd77 RSI: 00007f35a75f9019 RDI: 00007ffec64ddd60 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffec64ddb30 R10: 00007ffec64dd9e7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffec64ddd60 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.7/5341 Modules linked in: CPU: 0 UID: 0 PID: 5341 Comm: syz-executor.7 Not tainted 6.19.0-rc5-next-20260116 #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:ffff888048f879a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88801eee0000 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff88801eee03fc RBP: ffff88801eee0000 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801eee0000 R13: 0000000000000001 R14: ffffffff85c10760 R15: ffff8880183b6268 FS: 000055555a370400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f35a761e547 CR3: 0000000049c7d000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x623/0xb40 vfs_symlink+0x44b/0x840 filename_symlinkat+0x158/0x440 __x64_sys_symlink+0x82/0x110 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f35a759e427 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 58 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:00007ffec64ddc98 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f35a759e427 RDX: 00007ffec64ddd77 RSI: 00007f35a75f9019 RDI: 00007ffec64ddd60 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffec64ddb30 R10: 00007ffec64dd9e7 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffec64ddd60 irq event stamp: 179 hardirqs last enabled at (179): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (178): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (174): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (172): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- Process accounting resumed Process accounting resumed faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 buffer_io_error: 22 callbacks suppressed Buffer I/O error on dev sr0, logical block 0, lost async page write Buffer I/O error on dev sr0, logical block 1, lost async page write Buffer I/O error on dev sr0, logical block 2, lost async page write Buffer I/O error on dev sr0, logical block 3, lost async page write Buffer I/O error on dev sr0, logical block 4, lost async page write Buffer I/O error on dev sr0, logical block 5, lost async page write Buffer I/O error on dev sr0, logical block 6, lost async page write Buffer I/O error on dev sr0, logical block 7, lost async page write Buffer I/O error on dev sr0, logical block 8, lost async page write Buffer I/O error on dev sr0, logical block 9, lost async page write sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 127 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 254 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 381 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 508 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 635 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 762 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 889 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1016 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1143 op 0x1:(WRITE) flags 0x804800 phys_seg 127 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer tmpfs: Unknown parameter 'q2xO1g \l菴m*>ux@YCזu7oi'wI0(UFTz:Iwz} 2Nt!mP9Fɇo]mBI3vqK_jz^P m0000000000000000000000400000000000000000000004184467440737095516150x00000000000000040x00000' cgroup: Bad value for 'name' tmpfs: Unknown parameter 'q2xO1g \l菴m*>ux@YCזu7oi'wI0(UFTz:Iwz} 2Nt!mP9Fɇo]mBI3vqK_jz^P m0000000000000000000000400000000000000000000004184467440737095516150x00000000000000040x00000' cgroup: Bad value for 'name'