===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260114 #1 Not tainted ------------------------------------- syz-executor.0/4805 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.0/4805: #0: ffff88800f8bc3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88802f18d020 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f8c8950 (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: 4805 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_symlink+0x623/0xb40 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: 0033:0x7f3d4e913427 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:00007ffde53ea3b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3d4e913427 RDX: ffffffffffffffbc RSI: 00007f3d4e96e00e RDI: 00007f3d4e96d1dd RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffde53e9e30 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffde53ea480 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.0/4805 Modules linked in: CPU: 1 UID: 0 PID: 4805 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:ffff88805231f9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88800f708000 RCX: ffffffff81565a27 RDX: 0000000000000000 RSI: ffffffff81565a30 RDI: ffff88800f7083fc RBP: ffff88800f708000 R08: 0000000000000000 R09: fffffbfff0ba6ffc R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800f708000 R13: 0000000000000001 R14: ffffffff85c0c200 R15: ffff88801b3df578 FS: 0000555563704400(0000) GS:ffff8880e5443000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d4e993540 CR3: 000000004dba4000 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 do_symlinkat+0x153/0x440 __x64_sys_symlink+0x79/0xa0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3d4e913427 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:00007ffde53ea3b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3d4e913427 RDX: ffffffffffffffbc RSI: 00007f3d4e96e00e RDI: 00007f3d4e96d1dd RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffde53e9e30 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffde53ea480 irq event stamp: 713 hardirqs last enabled at (713): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (712): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (708): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (706): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list audit: type=1326 audit(1768379530.246:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4868 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3d4e913b19 code=0x0 audit: type=1326 audit(1768379531.060:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4868 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3d4e913b19 code=0x0 audit: type=1326 audit(1768379531.129:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4889 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3d4e913b19 code=0x0 audit: type=1326 audit(1768379531.164:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4902 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa618682b19 code=0x0 audit: type=1326 audit(1768379531.218:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4904 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe42466bb19 code=0x0 audit: type=1326 audit(1768379532.127:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4933 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe42466bb19 code=0x0 audit: type=1326 audit(1768379532.138:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4929 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3d4e913b19 code=0x0 audit: type=1326 audit(1768379532.162:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4931 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa618682b19 code=0x0 audit: type=1326 audit(1768379533.054:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4965 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f3d4e913b19 code=0x0 audit: type=1326 audit(1768379533.055:25): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4969 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fe42466bb19 code=0x0 audit: type=1326 audit(1768379533.078:26): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4968 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa618682b19 code=0x0 netlink: 'syz-executor.0': attribute type 13 has an invalid length. syz_tun: refused to change device tx_queue_len netlink: 'syz-executor.0': attribute type 13 has an invalid length. syz_tun: refused to change device tx_queue_len netlink: 'syz-executor.0': attribute type 13 has an invalid length. syz_tun: refused to change device tx_queue_len netlink: 'syz-executor.0': attribute type 13 has an invalid length. syz_tun: refused to change device tx_queue_len netlink: 'syz-executor.0': attribute type 13 has an invalid length. syz_tun: refused to change device tx_queue_len SELinux: Context u:r:untrusted_app:s0:c512,c768 is not valid (left unmapped). kauditd_printk_skb: 2 callbacks suppressed audit: type=1326 audit(1768379536.485:29): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5200 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd443d6cb19 code=0x0 audit: type=1326 audit(1768379536.541:30): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5221 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd443d6cb19 code=0x0 audit: type=1326 audit(1768379536.642:31): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5244 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7febb8c2db19 code=0x0 audit: type=1326 audit(1768379537.528:32): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5253 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd443d6cb19 code=0x0 audit: type=1326 audit(1768379537.566:33): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5259 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7febb8c2db19 code=0x0 audit: type=1326 audit(1768379538.446:34): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5279 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7febb8c2db19 code=0x0