===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260116 #1 Not tainted ------------------------------------- syz-executor.5/4129 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.5/4129: #0: ffff88800f8003f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888041e8b388 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f582950 (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: 4129 Comm: syz-executor.5 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: 0033:0x7f3254a4c427 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:00007ffe3a8ef9f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3254a4c427 RDX: 00007ffe3a8efad7 RSI: 00007f3254aa7019 RDI: 00007ffe3a8efac0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe3a8ef890 R10: 00007ffe3a8ef747 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe3a8efac0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.5/4129 Modules linked in: CPU: 1 UID: 0 PID: 4129 Comm: syz-executor.5 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:ffff88804603f9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88804be49b80 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff88804be49f7c RBP: ffff88804be49b80 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804be49b80 R13: 0000000000000001 R14: ffffffff85c105d0 R15: ffff888041c7f578 FS: 000055556c00a400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3254acc545 CR3: 0000000058f53000 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: 0033:0x7f3254a4c427 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:00007ffe3a8ef9f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3254a4c427 RDX: 00007ffe3a8efad7 RSI: 00007f3254aa7019 RDI: 00007ffe3a8efac0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe3a8ef890 R10: 00007ffe3a8ef747 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe3a8efac0 irq event stamp: 827 hardirqs last enabled at (827): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (826): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (822): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (820): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- loop7: detected capacity change from 0 to 256 loop3: detected capacity change from 0 to 2320 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A ISO 9660 Extensions: Microsoft Joliet Level 0 ISO 9660 Extensions: loop7: detected capacity change from 0 to 256 ISO 9660 Extensions: Microsoft Joliet Level 0 ISO 9660 Extensions: loop3: detected capacity change from 0 to 2320 ISO 9660 Extensions: Microsoft Joliet Level 0 ISO 9660 Extensions: ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= audit: type=1326 audit(1768572171.097:10): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.097:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.117:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=276 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.117:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.117:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.134:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=317 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.136:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.136:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4314 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.419:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4336 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 audit: type=1326 audit(1768572171.419:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4336 comm="syz-executor.0" exe="/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f26a7fefb19 code=0x7ffc0000 Bluetooth: hci4: connection err: -111 Bluetooth: hci4: hardware error 0x08 Bluetooth: hci4: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci1: connection err: -111 Bluetooth: hci1: hardware error 0x08 Bluetooth: hci5: connection err: -111 Bluetooth: hci5: hardware error 0x08 Bluetooth: hci4: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci0: hardware error 0x08 Bluetooth: hci1: connection err: -111 Bluetooth: hci2: connection err: -111 Bluetooth: hci7: connection err: -111 Bluetooth: hci2: hardware error 0x08 Bluetooth: hci7: hardware error 0x08 Bluetooth: hci6: connection err: -111 Bluetooth: hci6: hardware error 0x08 Bluetooth: hci5: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci1: connection err: -111 Bluetooth: hci6: connection err: -111 Bluetooth: hci7: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci3: connection err: -111 Bluetooth: hci2: connection err: -111 Bluetooth: hci3: hardware error 0x08 Bluetooth: hci5: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci7: connection err: -111 Bluetooth: hci1: connection err: -111 Bluetooth: hci2: connection err: -111 Bluetooth: hci3: connection err: -111 Bluetooth: hci6: connection err: -111 Bluetooth: hci1: connection err: -111 Bluetooth: hci3: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci1: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci0: connection err: -111 Bluetooth: hci4: connection err: -111 Bluetooth: hci2: connection err: -111 EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled EXT4-fs (loop5): unsupported descriptor size 0 EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled EXT4-fs (loop5): unsupported descriptor size 0 Bluetooth: hci2: connection err: -111 EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled EXT4-fs (loop5): unsupported descriptor size 0 Bluetooth: hci2: connection err: -111 set_capacity_and_notify: 37 callbacks suppressed loop5: detected capacity change from 0 to 4 EXT4-fs: Quota format mount options ignored when QUOTA feature is enabled EXT4-fs (loop5): unsupported descriptor size 0 Bluetooth: hci4: Opcode 0x0c03 failed: -110 Bluetooth: hci4: hardware error 0x08 Bluetooth: hci1: Opcode 0x0c03 failed: -110 Bluetooth: hci1: hardware error 0x08 Bluetooth: hci5: Opcode 0x0c03 failed: -110 Bluetooth: hci5: hardware error 0x08 Bluetooth: hci0: Opcode 0x0c03 failed: -110 Bluetooth: hci0: hardware error 0x08 Bluetooth: hci2: Opcode 0x0c03 failed: -110 Bluetooth: hci2: hardware error 0x08 Bluetooth: hci7: Opcode 0x0c03 failed: -110 Bluetooth: hci6: Opcode 0x0c03 failed: -110 Bluetooth: hci6: hardware error 0x08 Bluetooth: hci7: hardware error 0x08 Bluetooth: hci3: Opcode 0x0c03 failed: -110 Bluetooth: hci3: hardware error 0x08 Bluetooth: hci4: Opcode 0x0c03 failed: -110 Bluetooth: hci1: Opcode 0x0c03 failed: -110 Bluetooth: hci5: Opcode 0x0c03 failed: -110 Bluetooth: hci0: Opcode 0x0c03 failed: -110 Bluetooth: hci2: Opcode 0x0c03 failed: -110 Bluetooth: hci6: Opcode 0x0c03 failed: -110 Bluetooth: hci7: Opcode 0x0c03 failed: -110 Bluetooth: hci3: Opcode 0x0c03 failed: -110 kauditd_printk_skb: 10 callbacks suppressed audit: type=1400 audit(1768572178.861:30): avc: denied { write } for pid=4791 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=4795 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=4795 comm=syz-executor.7 audit: type=1400 audit(1768572178.979:31): avc: denied { block_suspend } for pid=4804 comm="syz-executor.6" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=4818 comm=syz-executor.7 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pid=4821 comm=syz-executor.4