===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.1/5066 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.1/5066: #0: ffff88800f5da3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff8880483383e0 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f5de950 (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: 5066 Comm: syz-executor.1 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: 0033:0x7f3b90214427 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:00007ffd95e3a918 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b90214427 RDX: 00007ffd95e3a9f7 RSI: 00007f3b9026f019 RDI: 00007ffd95e3a9e0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd95e3a7b0 R10: 00007ffd95e3a667 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffd95e3a9e0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.1/5066 Modules linked in: CPU: 0 UID: 0 PID: 5066 Comm: syz-executor.1 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:ffff88804aa479a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888051fe3700 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff888051fe3afc RBP: ffff888051fe3700 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888051fe3700 R13: 0000000000000001 R14: ffffffff85c0d420 R15: ffff888048171628 FS: 000055557fb30400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b90294541 CR3: 000000004aed8000 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: 0033:0x7f3b90214427 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:00007ffd95e3a918 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b90214427 RDX: 00007ffd95e3a9f7 RSI: 00007f3b9026f019 RDI: 00007ffd95e3a9e0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd95e3a7b0 R10: 00007ffd95e3a667 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffd95e3a9e0 irq event stamp: 187 hardirqs last enabled at (187): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (185): [] handle_softirqs+0x65e/0x7d0 softirqs last enabled at (186): [] __irq_exit_rcu+0xc4/0x100 softirqs last disabled at (177): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- audit: type=1326 audit(1768573500.727:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5132 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.728:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5132 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=158 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list audit: type=1326 audit(1768573500.728:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5132 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.729:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5132 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=317 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.729:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5132 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.809:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5145 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.813:25): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5145 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.814:26): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5145 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=158 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.814:27): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5145 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 audit: type=1326 audit(1768573500.960:28): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5151 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f5c7975eb19 code=0x7ffc0000 Bluetooth: unknown link type 6 Bluetooth: hci1: connection err: -111 Bluetooth: Unexpected continuation frame (len 16) Bluetooth: unknown link type 6 Bluetooth: hci1: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci1: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 Bluetooth: Unexpected continuation frame (len 16) Bluetooth: unknown link type 6 Bluetooth: hci1: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci1: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci4: connection err: -111 Bluetooth: Unexpected start frame (len 10) Bluetooth: unknown link type 6 Bluetooth: hci0: connection err: -111 Bluetooth: Unexpected continuation frame (len 16) Bluetooth: unknown link type 6 Bluetooth: hci0: connection err: -111 Bluetooth: Unexpected start frame (len 10) netlink: 'syz-executor.6': attribute type 16 has an invalid length. netlink: 'syz-executor.6': attribute type 16 has an invalid length. Bluetooth: unknown link type 6 Bluetooth: hci0: connection err: -111 Bluetooth: Unexpected start frame (len 10) netlink: 'syz-executor.6': attribute type 16 has an invalid length. netlink: 'syz-executor.6': attribute type 16 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. Bluetooth: Unexpected start frame (len 24) Bluetooth: hci4: link tx timeout Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. Bluetooth: hci4: link tx timeout Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa Bluetooth: hci4: link tx timeout Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa Bluetooth: hci4: link tx timeout Bluetooth: hci4: killing stalled connection 11:aa:aa:aa:aa:aa faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption syz-executor.5 (5757) used greatest stack depth: 22896 bytes left Bluetooth: hci1: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci1: Injecting HCI hardware error event Bluetooth: hci1: hardware error 0x00 Bluetooth: hci4: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci4: Injecting HCI hardware error event faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption Bluetooth: hci4: command 0x0406 tx timeout netlink: 16 bytes leftover after parsing attributes in process `syz-executor.6'. Bluetooth: hci0: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci0: Injecting HCI hardware error event Bluetooth: hci0: hardware error 0x00 faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption netlink: 16 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.6'. faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 random: crng reseeded on system resumption netlink: 16 bytes leftover after parsing attributes in process `syz-executor.6'. program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO