===================================== WARNING: bad unlock balance detected! 6.19.0-rc5-next-20260113 #1 Not tainted ------------------------------------- syz-executor.1/281 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.1/281: #0: ffff88800fd6c3f8 (sb_writers#3){.+.+}-{0:0}, at: filename_create+0xf7/0x400 #1: ffff88801b0eecb8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x1b1/0x400 #2: ffff88800fc58950 (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: 281 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_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f539d4b8c27 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 53 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:00007ffc645702c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffc64570350 RCX: 00007f539d4b8c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc64570350 RBP: 00007ffc6457032c R08: 0000000000000000 R09: 0000000000000004 R10: 00007ffc64570066 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000001e810 R14: 0000000000000002 R15: 00007ffc64570390 ------------[ cut here ]------------ WARNING: kernel/rcu/tree_plugin.h:443 at __rcu_read_unlock+0x25f/0x5c0, CPU#0: syz-executor.1/281 Modules linked in: CPU: 0 UID: 0 PID: 281 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:ffff88800c8c79e0 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff888016af0000 RCX: ffffffff815664c7 RDX: 0000000000000000 RSI: ffffffff815664d0 RDI: ffff888016af03fc RBP: ffff888016af0000 R08: 0000000000000000 R09: fffffbfff0ba6ff4 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888016af0000 R13: 0000000000000001 R14: ffffffff85c0cf20 R15: ffff88804b977578 FS: 000055557e20d400(0000) GS:ffff8880e5342000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc6456eff8 CR3: 000000000da82000 CR4: 0000000000350ef0 Call Trace: __wait_on_freeing_inode+0x10f/0x350 insert_inode_locked+0x25f/0x890 __ext4_new_inode+0x223d/0x4cd0 ext4_mkdir+0x331/0xb30 vfs_mkdir+0x6d8/0xc00 do_mkdirat+0x11a/0x440 __x64_sys_mkdir+0x65/0x80 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f539d4b8c27 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 53 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:00007ffc645702c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007ffc64570350 RCX: 00007f539d4b8c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 00007ffc64570350 RBP: 00007ffc6457032c R08: 0000000000000000 R09: 0000000000000004 R10: 00007ffc64570066 R11: 0000000000000202 R12: 0000000000000032 R13: 000000000001e810 R14: 0000000000000002 R15: 00007ffc64570390 irq event stamp: 278025 hardirqs last enabled at (278025): [] irqentry_exit+0x17b/0x650 hardirqs last disabled at (278024): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (278018): [] kernel_fpu_end+0x59/0x70 softirqs last disabled at (278016): [] kernel_fpu_begin_mask+0x1bb/0x300 ---[ end trace 0000000000000000 ]--- program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.2 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.5 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.6 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.2 is using a deprecated SCSI ioctl, please convert it to SG_IO ======================================================= 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. ======================================================= EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. audit: type=1400 audit(1768294419.688:11): avc: denied { module_load } for pid=4694 comm="syz-executor.6" path=2F6D656D66643A2F70726F632F7468726561642D73656C662F617474722F6673637265617465202864656C6574656429 dev="tmpfs" ino=25 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:tmpfs_t:s0 tclass=system permissive=1 EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 audit: type=1326 audit(1768294424.346:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.347:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.347:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=100 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.347:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.348:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=317 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.350:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5005 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 audit: type=1326 audit(1768294424.672:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5015 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.675:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5015 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=100 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.675:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5015 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.742:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5027 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.742:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5027 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=100 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294424.742:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5027 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 lo: entered promiscuous mode lo: left promiscuous mode lo: entered promiscuous mode lo: left promiscuous mode audit: type=1326 audit(1768294425.617:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5049 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294425.617:25): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5049 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294425.617:26): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5049 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=100 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294425.617:27): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5049 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1326 audit(1768294425.617:28): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5049 comm="syz-executor.2" exe="/syz-executor.2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f3dd7570b19 code=0x7ffc0000 audit: type=1400 audit(1768294425.698:29): avc: denied { tracepoint } for pid=5052 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 lo: entered promiscuous mode lo: left promiscuous mode lo: entered promiscuous mode lo: left promiscuous mode