process 'syz-executor.7' launched './file1' with NULL argv: empty string added
=====================================
WARNING: bad unlock balance detected!
6.19.0-rc5-next-20260113 #1 Not tainted
-------------------------------------
syz-executor.3/4507 is trying to release lock (rcu_read_lock) at:
[<ffffffff81c20365>] __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.3/4507:
 #0: ffff88800fb803f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400
 #1: ffff88804a50bd10 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400
 #2: ffff88800fb84950 (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: 4507 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:
 <TASK>
 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+0x406/0xb40
 vfs_symlink+0x44b/0x840
 do_symlinkat+0x153/0x440
 __x64_sys_symlink+0x79/0xa0
 do_syscall_64+0xbf/0x420
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcd9e35427
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:00007fff35d18848 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbcd9e35427
RDX: 00007fff35d18923 RSI: 00007fbcd9e9002f RDI: 00007fff35d18910
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff35d186e0
R10: 00007fff35d18597 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff35d18910
 </TASK>
------------[ cut here ]------------
WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.3/4507
Modules linked in:
CPU: 1 UID: 0 PID: 4507 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:ffff88804b1279a0 EFLAGS: 00010286
RAX: 00000000ffffffff RBX: ffff88800f4b1b80 RCX: ffffffff815664c7
RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff88800f4b1f7c
RBP: ffff88800f4b1b80 R08: 0000000000000000 R09: fffffbfff0ba6ff4
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800f4b1b80
R13: 0000000000000001 R14: ffffffff85c0d100 R15: ffff88804a513c48
FS:  000055555c7db400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbcd9e90019 CR3: 000000001c3fa000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __wait_on_freeing_inode+0x10f/0x350
 insert_inode_locked+0x25f/0x890
 __ext4_new_inode+0x223d/0x4cd0
 ext4_symlink+0x406/0xb40
 vfs_symlink+0x44b/0x840
 do_symlinkat+0x153/0x440
 __x64_sys_symlink+0x79/0xa0
 do_syscall_64+0xbf/0x420
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcd9e35427
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:00007fff35d18848 EFLAGS: 00000206 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbcd9e35427
RDX: 00007fff35d18923 RSI: 00007fbcd9e9002f RDI: 00007fff35d18910
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff35d186e0
R10: 00007fff35d18597 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff35d18910
 </TASK>
irq event stamp: 741
hardirqs last  enabled at (741): [<ffffffff84ce830b>] irqentry_exit+0x17b/0x650
hardirqs last disabled at (740): [<ffffffff84ce6f48>] sysvec_call_function_single+0x18/0xc0
softirqs last  enabled at (734): [<ffffffff812cdb99>] kernel_fpu_end+0x59/0x70
softirqs last disabled at (732): [<ffffffff812cea6b>] kernel_fpu_begin_mask+0x1bb/0x300
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 131072
ext4: Unknown parameter 'euid<00000000000000000000'
loop1: detected capacity change from 0 to 8
loop2: detected capacity change from 0 to 131072
ext4: Unknown parameter 'euid<00000000000000000000'
tmpfs: Bad value for 'nr_blocks'
EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.
: Can't lookup blockdev
: Can't lookup blockdev
loop5: detected capacity change from 0 to 512
loop2: detected capacity change from 0 to 131072
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs error (device loop5): __ext4_iget:5425: inode #12: block 2: comm syz-executor.5: invalid block
ext4: Unknown parameter 'euid<00000000000000000000'
loop1: detected capacity change from 0 to 8
audit: type=1400 audit(1768363004.843:13): avc:  denied  { tracepoint } for  pid=4542 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
tmpfs: Unknown parameter 'nr_inoDes'
tmpfs: Unknown parameter 'nr_inoDes'
: Can't lookup blockdev
EXT4-fs error (device loop5): ext4_validate_block_bitmap:431: comm ext4lazyinit: bg 0: block 2: invalid block bitmap
EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.