===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260115 #1 Not tainted ------------------------------------- syz-executor.0/4271 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.0/4271: #0: ffff88800f6e43f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff888014e7c698 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800f6c0950 (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: 4271 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260115 #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: 0033:0x7f22fccdb427 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:00007ffc25082078 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f22fccdb427 RDX: ffffffffffffffbc RSI: 00007f22fcd3600e RDI: 00007f22fcd351dd RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc25081af0 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc25082140 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#1: syz-executor.0/4271 Modules linked in: CPU: 1 UID: 0 PID: 4271 Comm: syz-executor.0 Not tainted 6.19.0-rc5-next-20260115 #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:ffff88804abcf9a0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88804af4b700 RCX: ffffffff815660f7 RDX: 0000000000000000 RSI: ffffffff81566100 RDI: ffff88804af4bafc RBP: ffff88804af4b700 R08: 0000000000000000 R09: fffffbfff0ba7040 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804af4b700 R13: 0000000000000001 R14: ffffffff85c0e780 R15: ffff888014b29628 FS: 0000555592019400(0000) GS:ffff8880e5442000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f22fcd5b540 CR3: 0000000020380000 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: 0033:0x7f22fccdb427 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:00007ffc25082078 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f22fccdb427 RDX: ffffffffffffffbc RSI: 00007f22fcd3600e RDI: 00007f22fcd351dd RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffc25081af0 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc25082140 irq event stamp: 671 hardirqs last enabled at (671): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (670): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (666): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (664): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- cgroup: No subsys list or none specified program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO cgroup: No subsys list or none specified program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO loop2: detected capacity change from 0 to 5392 loop2: detected capacity change from 0 to 5392 loop2: detected capacity change from 0 to 5392 loop2: detected capacity change from 0 to 5392 audit: type=1326 audit(1768471135.145:10): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4371 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7feb92881b19 code=0x0 hugetlbfs: Bad value 'm' for mount option 'size' hugetlbfs: Bad value 'm' for mount option 'size' process 'syz-executor.0' launched './file1' with NULL argv: empty string added audit: type=1326 audit(1768471136.039:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4411 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7feb92881b19 code=0x0 program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1768471137.011:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4453 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7feb92881b19 code=0x0 program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1400 audit(1768471137.027:13): avc: denied { block_suspend } for pid=4455 comm="syz-executor.0" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 mac80211_hwsim hwsim15 wlan1: entered promiscuous mode mac80211_hwsim hwsim15 wlan1: left promiscuous mode mac80211_hwsim hwsim15 wlan1: entered promiscuous mode program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO mac80211_hwsim hwsim15 wlan1: left promiscuous mode audit: type=1400 audit(1768471137.213:14): avc: denied { tracepoint } for pid=4485 comm="syz-executor.4" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 program syz-executor.7 is using a deprecated SCSI ioctl, please convert it to SG_IO audit: type=1326 audit(1768471137.886:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4500 comm="syz-executor.1" exe="/syz-executor.1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7feb92881b19 code=0x0 Bluetooth: hci0: Opcode 0x0c03 failed: -4 Bluetooth: hci0: Opcode 0x0c03 failed: -4 audit: type=1400 audit(1768471140.842:16): avc: denied { watch } for pid=4596 comm="syz-executor.1" path="/proc/4596/task" dev="proc" ino=6967 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dir permissive=1 ======================================================= 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. ======================================================= Bluetooth: hci0: Opcode 0x0c03 failed: -4 sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_print_req_error: 106 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 Bluetooth: hci0: Opcode 0x0c03 failed: -4 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x800000 phys_seg 1 prio class 2