===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.1/5132 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.1/5132: #0: ffff88800f6c23f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801b77aa00 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f6c6950 (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: 5132 Comm: syz-executor.1 Not tainted 6.19.0-rc5-next-20260113 #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+0x406/0xb40 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: 0033:0x7f28b37b8427 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:00007ffd57a9c1d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f28b37b8427 RDX: 00007ffd57a9c2b3 RSI: 00007f28b3813022 RDI: 00007ffd57a9c2a0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd57a9c070 R10: 00007ffd57a9bf27 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd57a9c2a0 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.1/5132 Modules linked in: CPU: 1 UID: 0 PID: 5132 Comm: syz-executor.1 Not tainted 6.19.0-rc5-next-20260113 #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 a6 bb de ff 4d 85 f6 0f 84 73 fe ff ff e8 38 89 20 00 fb e9 68 fe ff ff 90 <0f> 0b 90 5b 5d 41 5c 41 5d 41 5e e9 61 f9 73 03 e8 0c 88 56 00 e9 RSP: 0018:ffff88805116f9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888052abd280 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff888052abd67c RBP: ffff888052abd280 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888052abd280 R13: 0000000000000001 R14: ffffffff85c0d8d0 R15: ffff88801b7b1fb0 FS: 00005555742b0400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffece550f88 CR3: 00000000546fc000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_symlink+0x406/0xb40 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: 0033:0x7f28b37b8427 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:00007ffd57a9c1d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f28b37b8427 RDX: 00007ffd57a9c2b3 RSI: 00007f28b3813022 RDI: 00007ffd57a9c2a0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd57a9c070 R10: 00007ffd57a9bf27 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd57a9c2a0 irq event stamp: 991 hardirqs last enabled at (991): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (990): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (986): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (984): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'. program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO Bluetooth: hci7: command 0x0406 tx timeout syz-executor.6 (5314) used greatest stack depth: 24208 bytes left syz-executor.7 (5360) used greatest stack depth: 23928 bytes left PM: Enabling pm_trace changes system date and time during resume. PM: Correct system time has to be restored manually after resume. UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list PM: Enabling pm_trace changes system date and time during resume. PM: Correct system time has to be restored manually after resume. PM: Enabling pm_trace changes system date and time during resume. PM: Correct system time has to be restored manually after resume. PM: Enabling pm_trace changes system date and time during resume. PM: Correct system time has to be restored manually after resume. sg_write: data in/out 1354423275/2147479462 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly sg_write: data in/out 1354423275/2147479462 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly sg_write: data in/out 1354423275/2147479462 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly sg_write: data in/out 1354423275/2147479462 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly sg_write: data in/out 1354423275/2147479462 bytes for SCSI command 0x0-- guessing data in; program syz-executor.1 not setting count and/or reply_len properly Bluetooth: hci7: SCO packet for unknown connection handle 201 Bluetooth: hci7: unexpected event for opcode 0x0411 Bluetooth: hci7: SCO packet for unknown connection handle 201 Bluetooth: hci7: unexpected event for opcode 0x0411 Bluetooth: hci7: SCO packet for unknown connection handle 201 Bluetooth: hci7: unexpected event for opcode 0x0411 perf: interrupt took too long (4069 > 3997), lowering kernel.perf_event_max_sample_rate to 49000 perf: interrupt took too long (6431 > 6411), lowering kernel.perf_event_max_sample_rate to 31000 perf: interrupt took too long (8077 > 8038), lowering kernel.perf_event_max_sample_rate to 24000 netlink: 'syz-executor.7': attribute type 21 has an invalid length. netlink: 'syz-executor.7': attribute type 21 has an invalid length. perf: interrupt took too long (10110 > 10096), lowering kernel.perf_event_max_sample_rate to 19000 mac80211_hwsim hwsim11 wlan1: entered promiscuous mode mac80211_hwsim hwsim11 wlan1: left promiscuous mode perf: interrupt took too long (12661 > 12637), lowering kernel.perf_event_max_sample_rate to 15000 netlink: 'syz-executor.7': attribute type 21 has an invalid length. mac80211_hwsim hwsim11 wlan1: entered promiscuous mode netlink: 'syz-executor.7': attribute type 21 has an invalid length. mac80211_hwsim hwsim11 wlan1: left promiscuous mode mac80211_hwsim hwsim13 wlan1: entered promiscuous mode netlink: 'syz-executor.7': attribute type 21 has an invalid length. mac80211_hwsim hwsim13 wlan1: left promiscuous mode mac80211_hwsim hwsim11 wlan1: entered promiscuous mode mac80211_hwsim hwsim11 wlan1: left promiscuous mode mac80211_hwsim hwsim13 wlan1: entered promiscuous mode mac80211_hwsim hwsim13 wlan1: left promiscuous mode mac80211_hwsim hwsim11 wlan1: entered promiscuous mode mac80211_hwsim hwsim13 wlan1: entered promiscuous mode mac80211_hwsim hwsim11 wlan1: left promiscuous mode mac80211_hwsim hwsim13 wlan1: left promiscuous mode audit: type=1400 audit(1768296243.157:11): avc: denied { ingress } for pid=247 comm="sshd" saddr=10.0.2.2 src=56846 daddr=10.0.2.15 dest=22 netif=eth0 scontext=system_u:object_r:sshd_exec_t:s0 tcontext=system_u:object_r:netif_t:s0 tclass=netif permissive=1 audit: type=1400 audit(1768296243.157:12): avc: denied { recvfrom } for pid=247 comm="sshd" saddr=10.0.2.2 src=56846 daddr=10.0.2.15 dest=22 netif=eth0 scontext=system_u:object_r:sshd_exec_t:s0 tcontext=system_u:object_r:node_t:s0 tclass=node permissive=1 audit: type=1400 audit(1768296243.158:13): avc: denied { recv } for pid=247 comm="sshd" saddr=10.0.2.2 src=56846 daddr=10.0.2.15 dest=22 netif=eth0 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:sshd_exec_t:s0 tclass=peer permissive=1 audit: type=1400 audit(1768296243.308:14): avc: denied { read } for pid=6119 comm="syz-executor.7" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1