===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.6/5676 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.6/5676: #0: ffff88800f6e43f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88804ceee330 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800a7d8950 (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: 5676 Comm: syz-executor.6 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: 0033:0x7efc77ffb427 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:00007ffd1d7006f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efc77ffb427 RDX: 00007ffd1d7007d7 RSI: 00007efc78056019 RDI: 00007ffd1d7007c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd1d700590 R10: 00007ffd1d700447 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd1d7007c0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.6/5676 Modules linked in: CPU: 0 UID: 0 PID: 5676 Comm: syz-executor.6 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:ffff888052a179a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88801a6c9b80 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff88801a6c9f7c RBP: ffff88801a6c9b80 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801a6c9b80 R13: 0000000000000001 R14: ffffffff85c0e870 R15: ffff88804cf4f578 FS: 0000555589f84400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efc7807b546 CR3: 0000000051fdf000 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: 0033:0x7efc77ffb427 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:00007ffd1d7006f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efc77ffb427 RDX: 00007ffd1d7007d7 RSI: 00007efc78056019 RDI: 00007ffd1d7007c0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd1d700590 R10: 00007ffd1d700447 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd1d7007c0 irq event stamp: 193 hardirqs last enabled at (193): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (192): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (186): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (184): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- No source specified No source specified No source specified No source specified No source specified loop1: detected capacity change from 0 to 4096 EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000. SELinux: Context system_u:object_r:crond_unit_file_t:s0 is not valid (left unmapped). kauditd_printk_skb: 7 callbacks suppressed audit: type=1400 audit(1768575635.876:38): avc: denied { associate } for pid=5937 comm="syz-executor.1" name="sr0" dev="devtmpfs" ino=116 scontext=system_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:device_t:s0 tclass=filesystem permissive=1 srawcon="system_u:object_r:crond_unit_file_t:s0" netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. 9pnet_fd: Insufficient options for proto=fd 9pnet_fd: Insufficient options for proto=fd netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. Process accounting paused 9pnet_fd: Insufficient options for proto=fd netlink: 16 bytes leftover after parsing attributes in process `syz-executor.0'. 9pnet_fd: Insufficient options for proto=fd 9pnet_fd: Insufficient options for proto=fd audit: type=1326 audit(1768575638.525:39): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6157 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f321c714b19 code=0x0 audit: type=1326 audit(1768575638.529:40): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=6157 comm="syz-executor.5" exe="/syz-executor.5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f321c714b19 code=0x0 UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list Bluetooth: hci0: Opcode 0x0c1a failed: -4 Bluetooth: hci0: Error when powering off device on rfkill (-4) Bluetooth: hci1: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Error when powering off device on rfkill (-4) Bluetooth: hci2: Opcode 0x0c1a failed: -4 Bluetooth: hci2: Error when powering off device on rfkill (-4) Bluetooth: hci4: Opcode 0x0c1a failed: -4 Bluetooth: hci4: Error when powering off device on rfkill (-4) Bluetooth: hci5: Opcode 0x0c1a failed: -4 Bluetooth: hci5: Error when powering off device on rfkill (-4) Bluetooth: hci6: Opcode 0x0c1a failed: -4 Bluetooth: hci6: Error when powering off device on rfkill (-4) Bluetooth: hci7: Opcode 0x0c1a failed: -4 Bluetooth: hci7: Error when powering off device on rfkill (-4) Bluetooth: hci3: Opcode 0x0c1a failed: -4 Bluetooth: hci3: Error when powering off device on rfkill (-4) UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' rfkill: input handler disabled rfkill: input handler enabled rfkill: input handler disabled rfkill: input handler enabled rfkill: input handler disabled rfkill: input handler enabled rfkill: input handler disabled rfkill: input handler enabled rfkill: input handler disabled rfkill: input handler enabled