===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260114 #1 Not tainted ------------------------------------- syz-executor.0/280 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.0/280: #0: ffff88800f7f03f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801b5083e0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f7f4950 (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: 280 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260114 #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: 0033:0x7fede3d02c27 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:00007ffe4b1f2f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe4b1f2fb0 RCX: 00007fede3d02c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffe4b1f2fb0 RBP: 00007ffe4b1f2f8c R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffe4b1f2cc7 R11: 0000000000000206 R12: 0000000000000032 R13: 0000000000026aa4 R14: 0000000000000014 R15: 00007ffe4b1f2ff0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.0/280 Modules linked in: CPU: 0 UID: 0 PID: 280 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260114 #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 16 c0 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 24 74 03 e8 bc 5c 56 00 e9 RSP: 0018:ffff88801aa8f9e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888009e63700 RCX: ffffffff81565a27 RDX: 0000000000000000 RSI: ffffffff81565a30 RDI: ffff888009e63afc RBP: ffff888009e63700 R08: 0000000000000000 R09: fffffbfff0ba6ffc R10: 0000000000000000 R11: 0000000000000001 R12: ffff888009e63700 R13: 0000000000000001 R14: ffffffff85c0cd90 R15: ffff88804a123c48 FS: 00005555825b5400(0000) GS:ffff8880e5343000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6ca26ba541 CR3: 000000000fa7c000 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: 0033:0x7fede3d02c27 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:00007ffe4b1f2f28 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffe4b1f2fb0 RCX: 00007fede3d02c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffe4b1f2fb0 RBP: 00007ffe4b1f2f8c R08: 0000000000000000 R09: 0000000000000003 R10: 00007ffe4b1f2cc7 R11: 0000000000000206 R12: 0000000000000032 R13: 0000000000026aa4 R14: 0000000000000014 R15: 00007ffe4b1f2ff0 irq event stamp: 187945 hardirqs last enabled at (187945): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (187944): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (187940): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (187938): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- Bluetooth: Unexpected continuation frame (len 4) Bluetooth: hci3: Received unexpected HCI Event 0x00 Bluetooth: Unexpected continuation frame (len 4) Bluetooth: hci3: Received unexpected HCI Event 0x00 audit: type=1400 audit(1768433492.695:11): avc: denied { write } for pid=4059 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 UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO loop2: detected capacity change from 0 to 264192 ext4: Unknown parameter '¶ù' SELinux: Context system_u:object_r:hald_acl_exec_t:s0 is not valid (left unmapped). audit: type=1400 audit(1768433502.322:12): avc: denied { relabelto } for pid=4128 comm="syz-executor.2" name="NETLINK" dev="sockfs" ino=6363 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=netlink_xfrm_socket permissive=1 trawcon="system_u:object_r:hald_acl_exec_t:s0"